Dan Zhao
@ZhaoGroupNUS
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Welcome to Dr. Dan Zhao’s group at NUS. We are working on the design and synthesis of advanced porous materials and hybrid membranes for various applications.
Singapore
Joined March 2016
#COFs #films #sensing We have grown COF films with polyhedral morphology and enhanced sensing performance. Polycrystalline COF membranes are on the way! @J_A_C_S
pubs.acs.org
Porous crystal films offer great potential for tackling energy and environmental challenges. However, despite over a decade of intensive research, covalent organic framework (COF) films exhibiting...
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RT @MOF2026: Welcome to MOF2026! The website for the conference is now live! We look forward to welcoming you to the beautiful city of New….
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RT @NatChemEng: 🚨 Online now!. A Comment from Haoyuan Zhang & Dan Zhao discusses best practices for covalent organic framework membranes in….
nature.com
Nature Chemical Engineering - Covalent organic framework membranes have shown great potential for liquid-phase molecular separations in recent years; however, non-standardized reporting hinders...
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#COFs #nanofiltration #membranes COF membranes are promising for liquid-phase separations, but progress is slowed by non-standardized reporting. We propose best practices for reproducibility, scalability, and applications in this exciting topic @NatChemEng
nature.com
Nature Chemical Engineering - Covalent organic framework membranes have shown great potential for liquid-phase molecular separations in recent years; however, non-standardized reporting hinders...
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#COFs #energy_storage Imide-linked COFs can now be made in minutes via a water-assisted microwave method. Their robust linkages make them promising cathode materials for lithium-ion batteries. Great collaboration with NUS MSE! @J_A_C_S
pubs.acs.org
Solvothermal synthesis has been dominant for covalent organic frameworks (COFs) in the past decades. However, it requires high temperatures, harmful organic solvents, sealed pressurized reactors, and...
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#materials #MOFs #membranes Physical stability is as crucial as chemical stability in MOF membranes. See our recent findings on a new microscopic, vapor-flow-driven mechanical amorphization in MAF-5 membranes during pervaporation @pfizer @J_A_C_S
pubs.acs.org
While metal–organic frameworks (MOFs) are renowned for their highly ordered crystalline structures, the amorphization of MOFs reveals new functional properties and creates opportunities for material...
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#ChemE #MOFs #sorption #separation We report the single-component adsorption and diffusion of CO₂, N₂, and H₂O in CALF-20, and those data have been applied to predict breakthrough results @ACSPublications
pubs.acs.org
CALF–20 is a hydrophobic MOF adsorbent demonstrated at a pilot scale for the capture of CO2 from wet flue gas using a direct steam heating TSA cycle. It has been synthesized following a published...
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#COFs #membranes We demonstrate that a COF membrane with ~4.5 Å pores can achieve high C6 alkane isomer separation via OSRO, boosting RON of a 5-component C6 mixture from 67.7 to 92.8 through continuous filtration @J_A_C_S
pubs.acs.org
Membrane separation represents cutting-edge technology for the isomeric separation of C6 alkanes in the petrochemical sector. However, it remains challenging to design membranes with sub-0.1 nm...
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#outreach Thrilled to give a talk at Honeywell UOP TCO Invitational Lecture Series! @honeywell @HoneywellUop @numattech @BenDHernandez
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#ChemE #MOFs #CO2 #gas_separation We report equilibrium & kinetics data for CO₂/N₂/H₂O in CALF-20 across 25–150 °C & 0–90% RH using dynamic column breakthrough method. @chemengsci
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#chemistry #materials #MOFs We made 35 Cu- & Au-based MOFs in water via a one-pot ultrasound method. Great collaboration between NUS and JNU! @jnu1906 @J_A_C_S
pubs.acs.org
The synthesis of metal–organic frameworks (MOFs) often involves high-boiling-point organic solvents, which can have extensive environmental impact and limit their large-scale applications. Here, we...
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#MOFs #membranes #nanofiltration PCN-250 membranes obtained via secondary growth showed 97.2-99.2% OSN rejection, while tertiary growth ran 1600 h in PV with a separation factor of 591. Thickness matters! @pfizer @J_Membrane_Sci
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#MOFs #GasSeparation We designed flexible, interpenetrated MOFs (NUS-33 & NUS-34) that leverage counterion dynamics for precise gas separation—achieving high C₂H₄ & C₂H₂ recovery @J_A_C_S
pubs.acs.org
The separation of acetylene (C2H2), ethylene (C2H4), and carbon dioxide (CO2) is critical in the chemical industry, driven by the increasing demand for high-purity C2H2 and C2H4. While metal–organic...
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#MOFs #Chemistry #MaterialsScience MOFs show greater stability in organic solvents than in water, even with acids/bases present—ideal for catalytic & separation applications in organic liquid systems. @pfizer @ACSPublications
pubs.acs.org
Metal–organic frameworks (MOFs) have been widely used in the sorption and separation realms, in which chemical resistance plays an important role. However, there is a notable lack of research on the...
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#MOFs #CO2 #gas_separation By compositing with Fe and passivating with PVDF, the upgraded ALF, Fe-ALF-PVDF, exhibits outstanding CO2 capture performance, even in the presence of moisture! Great collaboration within ALF team @J_A_C_S
pubs.acs.org
Carbon capture, utilization, and sequestration (CCUS) have emerged as pivotal mitigation strategies in addressing climate change induced by greenhouse gas emissions. In this pursuit, our objective is...
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#hiring #postdoc #membranes #nanofiltration We have a postdoc position available from April 2025 for chiral membranes. The candidate needs to develop chiral membranes for chiral separations. Please send your CV to Dr. Zhao
blog.nus.edu.sg
25 January 2025 New Postdoc Position! Recruitment Information: Postdoctoral Research Fellow at Prof. Dan Zhao’s group of NUS Department of Chemical and Biomolecular Engineering, earliest available...
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#Cages #gas_separation #membranes Packing engineering of cages can make better use of their extrinsic porosity, turning them into good fillers in mixed matrix membranes for CO2/CH4 separation @angew_chem
onlinelibrary.wiley.com
Mixed matrix membranes containing two polymorphous cage networks (ZrT-2α and ZrT-2β) were fabricated using a packing engineering approach. Synchrotron X-ray absorption and positron annihilation...
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#sorption #separation C8 aromatic isomer separation is one of the few separation processes dominated by adsorption. See how nanospace engineering of porous materials can help advance this process @acsnano
pubs.acs.org
C8 aromatic isomers, namely para-xylene (PX), meta-xylene (MX), ortho-xylene (OX), and ethylbenzene (EB), are essential industrial chemicals with a wide range of applications. The effective separat...
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#COFs #membranes #nanofiltration Following our previous studies on solvation-triggered interlayer shifting in 2D COFs, we now present solvent-responsive COF membranes for OSN and OSRO @ScienceAdvances
science.org
Smart covalent organic framework membranes are developed to transform the organic solvent nanofiltration technology.
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#COFs #membranes #nanofiltration We fabricated pore-oriented ACOF-1 membranes with vertically aligned channels, exhibiting solvent responsiveness and a stable rejection rate after 3024 h of continuous operation in methanol solution @angew_chem
onlinelibrary.wiley.com
Dynamic and reversible structural deformations in crystallographically oriented two-dimensional COF membranes upon solvent exposure are disclosed. We leverage this to design molecular separation...
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