Heng-Yu Chi

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Related publications (17)

Fabrication of ZIF-8 membranes by direct assembly of nanosheets from bottom-up synthesis growth solution

Kumar Varoon Agrawal, Heng-Yu Chi, Xuekui Duan

Metal-organic frameworks (MOFs) host intrinsically porous structure and rich structural and chemical features. Several MOFs with pore aperture comparable to the size of gas molecules have attracted interest to form the selective layer of membranes. Synthes ...

ELSEVIER2023

Towards ultrathin metal-organic frameworks membranes for high-performance separation

Kumar Varoon Agrawal, Heng-Yu Chi, Shuqing Song, Ranadip Goswami, Qi Liu

Research on metal-organic frameworks (MOFs) based membranes has gained a lot of attention in the last decade thanks to the unique and highly versatile chemistry of MOFs, which allows one to synthesize a variety of structural dimensions, topologies, pore si ...

Aip Publishing2023

Unit-cell-thick zeolitic imidazolate framework films for membrane application

Kumar Varoon Agrawal, Heng-Yu Chi, Jian Hao, Shuqing Song, Luis Francisco Villalobos Vazquez de la Parra, Shaoxian Li, Qi Liu, Deepu Joseph Babu, Yu Han

Zeolitic imidazolate frameworks (ZIFs) are a subset of metal-organic frameworks with more than 200 characterized crystalline and amorphous networks made of divalent transition metal centres (for example, Zn2+ and Co2+) linked by imidazolate linkers. ZIF th ...

NATURE PORTFOLIO2023

In Situ Nucleation-Decoupled and Site-Specific Incorporation of angstrom-Scale Pores in Graphene Via Epoxidation

Nicola Marzari, Kumar Varoon Agrawal, Kuang-Jung Hsu, Heng-Yu Chi, Luc Sébastien Bondaz, Victor Carle Adrien Boureau, Luis Francisco Villalobos Vazquez de la Parra, Shiqi Huang, Shaoxian Li, Mohammad Tohidivahdat

Generating pores in graphene by decoupled nucleation and expansion is desired to achieve a fine control over the porosity, and is desired to advance several applications. Herein, epoxidation is introduced, which is the formation of nanosized epoxy clusters ...

Wiley-V C H Verlag Gmbh2022

Unblocking Ion-occluded Pore Channels in Poly(triazine imide) Framework for Proton Conduction

Kumar Varoon Agrawal, Pascal Alexander Schouwink, Heng-Yu Chi, Laura Piveteau, Kangning Zhao, Luis Francisco Villalobos Vazquez de la Parra, Qi Liu

Poly(triazine imide) or PTI is an ordered graphitic carbon nitride hosting angstrom-scale pores attractive for selective molecular transport. AA'-stacked PTI layers are synthesized by ionothermal route during which ions occupy the framework and occlude the ...

Wiley-VCH Verlag GmbH2022

Multipulsed Millisecond Ozone Gasification for Predictable Tuning of Nucleation and Nucleation-Decoupled Nanopore Expansion in Graphene for Carbon Capture

Kumar Varoon Agrawal, Mounir Driss Mensi, Kuang-Jung Hsu, Heng-Yu Chi, Luis Francisco Villalobos Vazquez de la Parra, Mostapha Dakhchoune, Shiqi Huang, Guangwei He, Wan-Chi Lee

Predictable and tunable etching of angstrom-scale nanopores in single-layer graphene (SLG) can allow one to realize high-performance gas separation even from similar-sized molecules. We advance toward this goal by developing two etching regimes for SLG whe ...

2021

Synthesis of high-performance polycrystalline metal-organic framework membranes at room temperature in a few minutes

Kumar Varoon Agrawal, Heng-Yu Chi, Qi Liu, Jian Hao, Deepu Joseph Babu

The development of a rapid and reproducible crystallization route for the synthesis of polycrystalline metal-organic framework (MOF) films is attractive for the scalable production of nanoporous membranes on porous supports. Prior crystallization studies h ...

Royal Society of Chemistry2020

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