Christopher H. Hendon
@chhendon
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dr coffee, associate professor of computational materials chemistry at @uoregon , creator of @coffeelitrev + water for coffee, editor of j. sci. food agric.
Eugene, OR
Joined September 2012
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Last Seen Profiles
Pinned Tweet
Our paper on triboelectrification during coffee grinding in
@Matter_CP
. Key messages: a couple drops of water on whole beans *before* grinding turns off chargeing, preventing clumps from forming, which makes higher concentration extracts. + less mess!
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27
133
In 2014 we learned about water.
In 2016 we learned about grinding.
In 2020 we finally brewed some espresso.
We present our blueprint to acess the flavors you desire, every single shot... And will save *a lot* of money.
@Matter_CP
@uoregon
@strivefortone
20
65
267
I just received notification from the
@NSF
- DMR that my proposal, "Defects and Doping in MOFs" has been awarded.
It's my first successful grant, and I'm super happy and looking forward to getting to work.
Thanks reviewers for sharing a similar vision for this project!!
🐣🎉
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Teddy's so excited he's got RB1 and the helmet to go with it. Next stop - Foxborough.
Happy holidays!
@Patriots
@Flyguy2stackz
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171
Looking at this
#LK99
structure more closely, and as others have pointed out in various ways, its not only the Cu atoms that are curious, but also the absence of a µ3-O. Most apatite structures have a channel of monovalent anions (Ca-F/OH, teeth!) etc.
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9
145
I'm so happy to be named a Camille Dreyfus Teacher-Scholar. Thank you to my students who have done so much.
Congratulations to Dr. Christopher Hendon (
@chhendon
) at
@uoregom
for being named a 2022 Camille Dreyfus Teacher-Scholar!
@uoCHandBIC
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I strongly dislike items in the kitchen that serve only one purpose. Check out this secondary use for my aeropress.
Wilt spinach in boiling water for 60 sec. Rinse cool. Load spinach into the aeropress, no paper, squeeze the water out. Add ground sesame seeds, sesame oil, soy.
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12
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My group will not be submitting anything to Angew. Chem. ever again.
Shameful opinion by Hudlicky, shameful that it ever made it online, a disgraced review process, and a reflection that there are major systemic issues.
Angew. Chem. is cancelled
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13
118
Some excellent news! I am one of 25
@RCSA1
#CottrellScholars
of 2021. This is a big moment for me, but I also want to congratulate all the other winners! Also, thank you folks in the coffee industry - our collaboration is a major reason for this award.
🤸⭐🍾
RCSA welcomes its 2021 class of
#CottrellScholars
: 25 outstanding teacher-scholars in
#chemistry
,
#physics
and
#astronomy
!
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Our defect paper in JACS is now appearing on the front cover 🤑🤑
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Extremely pleased to share our recent pure-theory work on H-atom defects in MOFs. They are probably found in the 2D conductors, and yield semiconductors, not metals!
Appearing in
@J_A_C_S
, also soon to be on the front cover!
6
10
96
huge news.
my first funding from the
@SpecialtyCoffee
and the Coffee Science Foundation.
i'm leading a great team from
@uoregon
,
@OregonState
and
@portsmouthuni
.
also thanks
@stevejimdave
,
@sproparty
, and
@sh1chimi
for riffing some ideas with me.
time to work!
We're happy to announce that the
@uoregon
in Eugene has been chosen for a four-year espresso extraction research project, supported by
@nuovasimonelli
, "Towards a Deeper Understanding of Espresso Extraction." Learn more here:
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I'm excited. I'm giving an
@AmerChemSociety
webinar on coffee chemistry. Coffee people, it's free to register and attend!!! Also I'll make my slides available for download. Chemists and coffee folks alike, join me at 11AM PST Nov 15th, and register here:
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Im thinking of starting a weekly coffee podcast where I discuss a recent scientific article on the topic, summarize the findings, celebrate and criticize where necessary, etc.
Also could have guests (run time of 30 min or so) or without (10-15 min)?
Would people listen to that?
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This is absolutely not the case. Reputable US labs take care and time working up their samples, characterizing their composition, and measuring their properties. American science is rigorous and thorough. Sit tight - we do not need more random videos and rushed preprints
#lk99
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2
85
Two years and nearly 1000 papers later, I am so happy
@jenna_man
,
@austin_mroz
, and Khoa's
@ACSChemRev
is live! Check it out of you're interested in electronic modeling in MOFs. If you are behind paywall, email me and I'll happily provide you a PDF. Woooo
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85
We are looking for a postdoc, maybe two!, with a background in electronic structure modeling - skills in defect formation would be a bonus, as would experience in solid-state. Topics include MOFs, bipolar membranes. Interested applicants should email me (chendon at uoregon . edu)
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Heading to the
@AmerChemSociety
meeting in Indianapolis? I am giving an evening seminar at
@tinkercoffeeco
(roastery) Tue, Mar 28 at 5 PM. It's free and open to everyone, including the entire Indianapolis community (coffee or ortherwise).
sign up free:
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@Robert_Palgrave
Rob, every time you tweet a flamer thread I crack a whiskey and smile. This is a good one.
🥃 🥃
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I'm thinking about posting a series of tweets about the coffee equipment we use in my lab and why. Would people be interested in this?
I'd post about ~all of it~, including our power strips/surge protectors etc - love those things.
PS. I just placed an order for a Decent DE1XL.
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76
UO is hiring TT faculty in materials Chemistry, Physics, or joint. We’ve made many hires recently and all are doing excellent - it speaks to strengths here at
@uoregon
.🔥🔥
If you’re on the job market, please do consider applying to our materials search:
0
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Huge paper for today in
@NatureMaterials
, with excellent collaborators
@DincaGroupMIT
, and many others! (including two of my students —
@jenna_man
and
@Jack_Yang_0925
). Jack is going to grad school this year, keep your eyes peeled for his application!!
5
5
71
And for Christmas - our coffee paper appears on the front page of CNN!
It’s been a goal to have something appear there, but having it land Christmas Day, no less, is really outstanding.
Happy holidays, everyone. (Repost as the link was broken)
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74
A lot of trust is going into an arxiv report which absolutely does not provide the compositional evidence to suggest there is in fact an O vacancy. You need a boatload move evidence for this. It is likely OH since this stuff is made in air. Building that structure now.
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Not yet typeset but I wanted to share a milestone for the group. This is paper 💯.
Where does an atom end? I learned a lot writing the introduction, and think we offered an interesting alternative way to think about "size".
I hope you enjoy it!
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72
Turns out, I had been unknowingly using "perineal" in place of "perennial" for probably 5 years.
Nobody corrected me. Even in department wide emails. 😅
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67
Wow. German
@McDonalds
just tweeted out an image of inelastic neutron scattering. What's next,
@PEZCandyUSA
tweeting some angle resolved photoemission spectroscopy?
Wir verstehen zwar nicht, worum es geht, aber wir lieben es ❤
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The careful reader will note that both the math and experiments clearly indicate that the most reproducible espresso is one that is made with 0 g of coffee and 0 g of water.
👯♀️
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We have a killer paper coming up on the "RDT"
This weeks challenge was figuring out how to cite a now defunct post...
The addition of H2O affects the triboelectrification during grinding. Its a big deal for espresso and industry-scale coffee grinding🤑
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A nice perspective on hidden properties in MOFs. Great working with the folks at Sandia!!
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8
63
Alright…
@InorgChem
. Get a few things out of the way - I’m not named in this list. I don’t care. I like all the authors and the journal. Ok now onto the business - this article is fine (doesn’t add much, but doesn’t take much away). The list is… [1/n]
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Two items
• We have been recommended for the CAREER 🎊 to study transfer hydrogenation of CO2 using transition metal clusters
• I am proud to start as an Assoc. Editor at J. Sci. Food Agric. — IF 4.2. I'll handle papers on coffee ☕️, modeling 👾, and material properties of food
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Sorry ACS, but I've deliberately violated your no photography rule in order to take a photo of my student's first ever talk.
Austin did excellent, I'm so proud of her delivery.
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Getting excited about my next coffee paper. This one is going to be major.
Robin showed me some data last night from her experiments in the lab and I think we have got ourselves a way of determining the **qualities and quantities** of coffee extracts in real-time.
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2
50
I've begun signing all my manuscript peer reviews with:
– Christopher H. Hendon
It's fundamentally changed how I review papers.
Now that my name is associated with the comments, I find myself spending time being helpful, thinking carefully about how to provide useful feedback.
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I had a nice idea a few years ago and decided to bust out some calculations myself. The results were interesting and worth publishing.
I just submitted the paper with me as a solo author. Feels weird.
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If you need a break from all the challenging news, I recommend you brew some coffee and go for a walk. I might be able to help with the former but, really, I hope I can just make you smile a bit. Here's today's article about brewing tasty coffee, via
@WSJ
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We've got some big stuff brewing here. Really excited to get our first papers rolling from our Coffee Science Foundation grant.
The tricky part will be finding a journal that likes coffee, electrochemistry, and physics.
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Well, after some hard work we make our contribution to understanding
#lk99
. Beautiful work from some of the very best theorists and solid state chemical physicists.
Here is a link to our recent findings on
#LK99
together with
@PrincetonPhys
and
@chhendon
, which will appear on arxiv tomorrow. Most important findings are summarized below .
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It is disappointing to learn I was not selected for funding via a twitter list of those that were, prior to hearing anything from the funding agency. Why not notify everyone who submitted with embargo? Then I could celebrate my colleagues, rather than feel resentful of the system
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Two papers online in one day🦾
Brian: with some metal d orbital tuning in MOFs,
@CommsChem
(OA, IF 7.2)!
Monique: with an application of NICS-xy showing aromaticity in ligands opposes band curvature in MOFs,
@ACSMatLett
(IF-11.2)!
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I will be LIVE on
@NPR
's
@scifri
tomorrow!!
Tune in if you want to hear more about the coffee work published in
@Matter_CP
. 12:40 PM - 1:00 PM Pacific Standard Time.
I think it is the last interview of the show.
I am *so* excited to talk to Ira Flatow.
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Coffee folks, my next big paper coming out soon. Keep your eyes peeled on January 22.
It's my best one so far. 🤟
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@ChemMater
I was planning on running a few tutorials on performing solid state DFT calculations, and maybe molecular, for my experimental colleagues' groups - no reason to not expand the audience. I'm certain us theorists could put together a really nice series, together.
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Oh yeah!!!!! super pumped that our paper with
@brozeklab
on dynamic MOF bonding is online in
@J_A_C_S
today!
Thank you to the reviewers, and those that made comments on the version uploaded to
@ChemRxiv
, you made the paper stronger!
Many more to come.
2
5
44
Thought: the inevitable slides at the front of many ACS MOF symposium talks.
These include:
What are MOFs?
A series of irrelevant general properties common to all MOFs,
and others
My favorite part is when the speaker says, "oh... for this audience I wont..."
And then does.
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1
45
We've got a good opening for a Materials Chemist. This is a good place to work. We get excellent students, our faculty win many awards, we publish in the glossy spots, and do it while loving Eugene. How? We support each other.
Also, free coffee.
Come work with us.
Our application for a new OPEN RANK tenure-track/tenured position in Environmental Materials Chemistry (broadly defined) is now live. Please spread.
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Tomorrow we uncork a project we've been working on for two years.
Grateful for the support of
@SpecialtyCoffee
and
@nuovasimonelli
, and the exceptional work of
@josh_ko4tl
and the rest of my group in this pursuit.
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1
43
Here’s a gorgeous microscopy image of a spent espresso puck, via
@JoshMndez5
. Water was introduced on the right, where you can see channels forming at the surface, with more isolated cavities near the bottom of the puck (left). So pretty 😍
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41
Appearing online today in
@J_A_C_S
is another great collab with
@brozeklab
- nice work from
@fabriziokev
and
@lilyipayne
(her first paper!!). Studying a material first published by the
@FuniMat
team, we look at cation impact on the MOF photo-properties.
3
3
37
I’m off to Berkeley today to speak at the Miller Institute’s Fall Dinner (
@UCB_MillerInst
on coffee!) and then in Chemistry tomorrow (
@UCB_Chemistry
on MOF defects!). Might have a cheeky minute to see some coffee spots, too.
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4
38
Today is
#NationalCoffeeDay2021
, not to be confused with
#InternationalCoffeeDay
which is October 1.
I thought about making a thread of cool coffee science published in the past 365 days — still pondering whether its worth while/anyone would bother reading the linked articles.
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A paper we conceived in 2015 and began in 2018 has been accepted today. I never thought I'd be the guy with one of these multi-year saga papers but the feeling of getting it accepted is pretty great
0
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38
Our latest paper (and my first in this journal!) on retrofitting 2D MOFs with N-donors. The second paper in a series; a deeper investigation into the unique electronic properties of these 2D conductors.
Nice work from Khoa Le and
@jenna_man
!
2
1
37
In today's tasty paper with
@brozeklab
(this time in
@ACSMatLett
), we examine the best way to assign optical gaps in MOFs. Tauc or Gaussian? We make the case that most MOFs should be fit with Gaussians.
Nice work by
@fabriziokev
, Khoa, and Stacey!
1
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37
Really delighted with this work (collab. with my wonderful colleague
@brozeklab
),
@ChemMater
. Here, we study spin-crossover in a Fe-based MOF – show that large hysteresis can be understood by strong inter-Fe structural perturbations upon spin ordering.
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36
@leecronin
A curious decision to align yourself alongside a website's brand/image that has been in hot water for illegally hosting videos of child abuse content. The parody brings undeserved attention to this company, and has legal ramifications.
No good. Consider deleting and apologizing.
3
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35
If you're thinking of heading to the
@SpecialtyCoffee
expo in NOLA, come check out my lecture on electrochemistry!
I promise you'll learn a lot.
Also, the lecture is on my birthday, so that's cool. I'll bring donuts for the entire theater.
1
5
35
Austin is my second student and is off to old England to join the
@JelfsChem
group at Imperial. Today, though, we celebrate her wonderful PhD work as she defends at 3 PM. She did a lot of important work while with me, and I look forward to getting her papers out this year!
Today! Come support Austin Mroz as she defends her thesis for her PhD in Chemistry! Thursday, 5/13 at
3PM via ZOOM
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I've decided I want to be one of the guys who knows the line dances at cowboy clubs.
The journey begins tonight.
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35
I spent today cupping and roasting coffee, for science. im exhausted.
How do roasters do it
6
0
35
I've got my business cards with me for this ACS meeting (
@AmerChemSociety
).
Maybe we'll meet?
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36
Today
@jenna_man
,
@fabriziokev
,
@brozeklab
and I have a new paper appearing in
@ChemicalScience
on proton-coupled electronic doping of a Ti-MOF, why they aren't better HER catalysts. This study was based on some lovely prior work from
@saoumagrp
et al.
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A tasty new collaborative paper from
@brozeklab
and my group! Jake's first paper is a beauty, showing that mixed valent Fe2+/3+ in inorganic porous chalcogenide frameworks yields variable conductivity. Very nice calculations from Khoa, too!
0
7
35
The coffee thing we've (let's be honest, Robin) have been working on just CRUSHED humans in a cup tasters comp. by differentiating the same coffee brewed such that two cups were +0.04% TDS relative to the single cup.
⚡️⚡️⚡️⚡️⚡️⚡️⚡️⚡️⚡️⚡️⚡️
4
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A lovely piece on CNN
4
7
34
Excellent email today:
"I make coffee in a French press, then pour the coffee through several paper filters into the aero coffee maker. The I press the plunger through the Aero coffee maker through a metal filter and two paper filters. No bitterness."
🤔
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2
32
My most recent PhD graduate, Dr.
@austin_mroz
, gave me an awesome parting gift.
This is heart and soul of HMS Yemen, the first computer in our group, and the first to die.
1
1
33
Kicking 2024 off with a collaboration with Hong-Cai and Lei’s groups. A very nice study led by the talented Kingsley, Yihao, and Brian!
Photoactive ligands move charges around in 2D MOFs.
You can find it in
@J_A_C_S
.
@GroupZhou
@TheFangGroup
2
5
33
@kovacsjulie
I learned this past week that 👍 is also viewed as negative. Almost as if you're giving a thumbs up because all you can muster is a finger lift.
Strange times we live in.
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30
The secret to the ACS meeting is to set aside 1/2 a day for not ACS.
San Diego -> Chartered tuna fishing
San Francisco -> Round of golf
Denver -> Donut crawl
Indianapolis -> evening seminar at
@tinkercoffeeco
coffee roasters
Free event, with libations!
2
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31
Tomorrow. 1 pm. World of Coffee.
I speak on electrochemistry in room Lecture Room 2.
Ignore the funny URL title, this takes you to my seminar overview. I promise you’ll love what I’m going to talk about 🤑
2
3
30
I've set an out of office email, and am out of office, until December 19.
Hawaii time (and belated honeymoon). Feels like 2021 was a tougher year than 2020 - happy to unplug.
1
0
29
A very nice writeup in
@forbes
on our recent work in
@Matter_CP
. Thanks for your interest and sharing our work with their readership, Steven.
A simple trick to make better coffee: give it a try. From a new paper out of the Univ. of Oregon and
@chhendon
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0
1
30
Got my first Moderna jab today.
This is a big step forward.
0
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29
Writing a proposal, "A Chemical Fix for Bad Beverages".
Concluding sentence: "In its most practical embodiment, our dream ensures that the next conference-provided coffee is palatable, the poster session wine is less offensive, and we have rid the world of stale beer."
🤞🤣
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2
30
My first PhD student is finishing up today. How time flies.... 🍾🥂
Come support Thomas Kasel as he defends his thesis for his PhD in Chemistry! TODAY, Tuesday, 8/18 - 9AM via Zoom
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I just learned that our paper in
@Matter_CP
on espresso scored
#55
of **all papers, in all disciplines, published in 2020** according to
@altmetric
's Top 100!
Not bad, given the circumstances.
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28
Today's paper in
@J_A_C_S
, a nice collaboration with J. Miller and
@surendranathlab
— Pd-dimers! Another paper from my super undergraduate,
@Jack_Yang_0925
Jack is deciding on grad schools. If you think he'd be a good fit for your program, please, DM Me
1
1
28
UO,
@uoregon
has officially lifted mask requirements indoors for fully vaccinated folks. Those who are not fully vaccinated generally remain at risk and are strongly encouraged to get the shots!
But this means my coffee lab is 100% open for business*.
woohoo!!!!!!!!
*research
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Coffee friends ❤🧡💛💚💙💜🤎
I'm teaching general chemistry, starting Monday. We cover acids and bases, equilibria, solubility, free energy, and electrochemistry - and YOU'RE INVITED (free to attend!). Shoot me a DM if you want to join in live - MWF 3.30 - 4.30 pacific.
4
2
27
My colleague
@jenna_man
defended today.
This was a good PhD.
Lots of nice work, new directions, funding for more deep dives, and generally created her own direction of photodoped Ti-MOFs.
Happy and sad moment for the lab with the departure of Dr. Mancuso.
1
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28
It's done - HMS Oregon is going into full social distancing mode. My entire group has been instructed to work from home (not a cafe), and do our part to keep our community healthy. Tough decision to make, but it's preemptive, responsible, and costs us (theorists) very little.
1
1
27
I'm coming out the other end so...
My wife and I got COVID nearly two weeks ago. We are careful, triple moderna'd. Hers - mild. Mine, less mild, but then I also got a throat infection somehow? (requiring antibiotics).
Really kicked my ass. Still no sense of taste or smell.
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Those in Boston interested in coffee chemistry and physics, come on by the Public market for this lecture. I really enjoy the subject and you will too, I hope!
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@gagliardi8
This is one way to do it, but also maybe folks should think about what independence means. Why do we value independent contributions so highly, rather than quality and quantity of contributions, and not make collaboration a disincentive?
2
0
27
Thinking about wading into
#LK99
with some hefty theory, but maybe it’s… A little boring?
Seems clear that the phases people are making generally are not the phases we are modeling, and the phase that may have exotic properties may be metastable at best, w/ numerous im. phonons
6
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I'm speaking on our latest (unpublished) work from our coffee lab
☕️⚡️Electrochemical assessment of coffee qualities⚡️☕️
Monday 8:05AM S505a in AGFD division
Pumped about our results and would love your feedback. Work is supported by the
@SpecialtyCoffee
and
@nuovasimonelli
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