Wen Zhao

Henan Normal University

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Houyu Zhu

China University of Petroleum, East China

Zhihui Jiu

Henan Normal University

Wei Wang

Beijing Chemical Industry Research Institute (China)

Lei Liu

Shandong University of Science and Technology

Linlin Shi

Henan Normal University

Yanling Guo

Northeast Forestry University

Junbiao Chang

Henan Normal University

Shuzhang Qu

Sinopec (China)

Yuhua Chi

China University of Petroleum, East China

Jidong Dong

Harbin Institute of Technology

Cooperative Institutions

China University of Petroleum, East China

Xi'an Jiaotong University

Henan Normal University

Beijing Chemical Industry Research Institute (China)

Sinopec (China)

Tsinghua University

Central South University

Chinese Academy of Sciences

University of Chinese Academy of Sciences

National University of Singapore

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Redox‐Regulated Synthetic Channels: Enabling Reversible Ion Transport by Modulating the Ion‐Permeation Pathway

Angewandte Chemie (2024)

Linlin Shi Wen Zhao Zhihui Jiu Jingjing Guo Qiuhui Zhu

Abstract Natural redox‐regulated channel proteins often utilize disulfide bonds as redox sensors for adaptive regulation of channel conformations in response to diverse physiological environments. In this study, we developed novel synthetic ion channels capable of reversibly switching their ion‐transport capabilities by incorporating multiple disulfide bonds into artificial systems. X‐ray structural analysis and electrophysiological experiments demonstrated that these disulfide‐bridged molecules possess well‐defined tubular cavities and can be efficiently inserted into lipid bilayers to form artificial ion channels. More importantly, the disulfide bonds in these molecules serve as redox‐tunable switches to regulate the formation and disruption of ion‐permeation pathways, thereby achieving a transition in the transmembrane transport process between the ON and OFF states.

Molecular switch

Transmembrane channels

10.1002/ange.202403667

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Citations (0)

Research on the large-format splicing method for stamping-type digital light processing 3D printing

The International Journal of Advanced Manufacturing Technology (2025)

Lei Liu J. B. Li Wen Zhao Yanling Guo Yangwei Wang

Stamping

Digital printing

Digital Light Processing

10.1007/s00170-025-15161-2

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Ammonium Tetrakis(pentafluorophenyl)borate: Preparation and Application in Olefin Coordination Polymerization as the Cocatalyst Compound

Polymers (2024)

Yi-Ming Wei Shuzhang Qu Xinwei Li Jian Chen Wen Zhao

Metallocene catalysts have attracted much attention from academia and industry for their excellent catalytic activity in the field of olefin polymerization. Cocatalysts play a key role in metallocene catalytic systems, which can not only affect the overall catalytic activity, but also have an obvious influence on the structure and properties of the polymer. Although methylaluminoxane (MAO) is currently the most widely used cocatalyst, its price increases the production cost of polyolefin materials. Ammonium tetrakis(pentafluorophenyl)borate has shown excellent performance in polymerization, being one of the best substitutes for the traditional cocatalyst MAO. Compared with the main catalyst, whose composition and structure are relatively complex, the research on cocatalyst is very limited. This review mainly introduces the research history, preparation methods, and application progress in polymerization of ammonium tetrakis(pentafluorophenyl)borate, deepening our understanding of the role of cocatalyst in polymerization, with the hope of inspiring brand-new thinking on improving and enhancing the overall performance of catalyst systems.

Methylaluminoxane

Polyolefin

Coordination polymerization

Olefin polymerization

10.3390/polym16121689

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Facile Synthesis of NH4V3O8 Micro/Nanoplates and the Effects of Cutoff Potential on Electrochemical Performance

International Journal of Electrochemical Science (2017)

Liang Liu Qiang Liu Wen Zhao Limei Wang Guochun Li

Cut-off

10.20964/2017.12.19

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Citations (1)

Electrochemical studies of chloroperoxidase on poly-l-lysine film modified GC electrode

Chinese Chemical Letters (2009)

Wen Zhao Xia Qin Wu Zhong Qing Lu Wen Jing Hou He Xing Li

Glassy carbon

10.1016/j.cclet.2009.09.010

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Citations (13)

High solar-to-hydrogen efficiency in the novel derivatives of group-III trichalcogenides for photocatalytic water splitting: the effect of elemental composition

Journal of Materials Chemistry A (2023)

Hao Ma Wen Zhao Saifei Yuan Hao Ren Houyu Zhu

This work offers a potential method for developing brand-new, highly effective photocatalysts for water splitting via tuning chemical composition based on available parent M 2 X 3 materials.

10.1039/d3ta01443f

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Citations (4)

Redox‐Regulated Synthetic Channels: Enabling Reversible Ion Transport by Modulating the Ion‐Permeation Pathway

Angewandte Chemie International Edition (2024)

Linlin Shi Wen Zhao Zhihui Jiu Jingjing Guo Qiuhui Zhu

Natural redox-regulated channel proteins often utilize disulfide bonds as redox sensors for adaptive regulation of channel conformations in response to diverse physiological environments. In this study, we developed novel synthetic ion channels capable of reversibly switching their ion-transport capabilities by incorporating multiple disulfide bonds into artificial systems. X-ray structural analysis and electrophysiological experiments demonstrated that these disulfide-bridged molecules possess well-defined tubular cavities and can be efficiently inserted into lipid bilayers to form artificial ion channels. More importantly, the disulfide bonds in these molecules serve as redox-tunable switches to regulate the formation and disruption of ion-permeation pathways, thereby achieving a transition in the transmembrane transport process between the ON and OFF states.

10.1002/anie.202403667

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Citations (7)

Two-dimensional metal–organic frameworks as bifunctional electrocatalysts for the oxygen evolution reaction and oxygen reduction reaction (OER/ORR): a theoretical study

Physical Chemistry Chemical Physics (2023)

Feifei Xu Zhixiao Gao Zhencui Ge Hao Ma Hao Ren

Effective bifunctional catalysts are needed for the two main processes in metal-air batteries (oxygen evolution reaction and oxygen reduction reaction (OER/ORR)) to increase efficiency. Herein, we systematically investigate the stability, electronic structure, and catalytic performance of the OER/ORR of two-dimensional (2D) conducting metal-organic frameworks (MOFs) M3(C6Se6)2 (M = Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zr, Nb, Mo, Ru, Rh, Pd, Ir, and Pt) by first-principles calculations. The results show that Co3(C6Se6)2 has an overpotential of 0.51 V and 0.3 V for the OER and ORR, respectively, and Rh3(C6Se6)2 has an overpotential of 0.53 V and 0.29 V for the OER and ORR, respectively, which are very promising bifunctional catalysts. In addition, Ir3(C6Se6)2 is a very promising ORR catalyst with a low overpotential of 0.34 V. Volcano plots and contour maps of OER/ORR activity versus intermediate adsorption strength were established to describe the activity trend of M3(C6Se6)2 based on the relationship of adsorbed intermediates. Furthermore, the d-band center theory and crystal orbital Hamilton populations (COHPs) were used to relate the OER/ORR activity to the d-electrons of the central metal. Our study not only provides a novel bifunctional electrocatalyst but also provides some references for other 2D MOFs as electrocatalysts.

Overpotential

Oxygen evolution

Bifunctional catalyst

10.1039/d3cp01193c

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Citations (10)

Homogeneous Non-Metallocene Group 4 Metals Ligated with [N,N] Bidentate Ligand(s) for Olefin Polymerization

Polymers (2024)

Wen Zhao Changjiang Wu Jian Chen Shuzhang Qu Xinwei Li

The development of catalysts has significantly advanced the progress of polyolefin materials. In particular, group 4 (Ti, Zr, Hf) non-metallocene catalysts ligated with [N,N] bidentate ligand(s) have garnered increasing attention in the field of olefin polymerization due to their structurally stability and exceptional polymerization behaviors. Ligands containing nitrogen donors are diverse and at the core of many highly active catalysts. They mainly include amidine, guanidinato, diamine, and various N-heterocyclic ligands, which can be used to obtain a series of new polyolefin materials, such as ultrahigh molecular weight polyethylene (UHWMPE), olefin copolymers (ethylene/norbornene and ethylene/α-olefin) with high incorporations, and high isotactic or syndiotactic polypropylene after coordination with group 4 metals and activation by cocatalysts. Herein, we focus on the advancements and applications of this field over the past two decades, and introduce the catalyst precursors with [N,N] ligand(s), involving the effects of ligand structure, cocatalyst selection, and polymerization conditions on the catalytic activity and polymer properties.

Polyolefin

Tacticity

Norbornene

Post-metallocene catalyst

Coordination polymerization

Olefin polymerization

10.3390/polym16030406

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Citations (2)

Electrochemical Generation of Te Vacancy Pairs in PtTe for Efficient Hydrogen Evolution

ACS Applied Materials & Interfaces (2024)

Wenjie Nie Taotao Ren Wen Zhao Bingqing Yao Wenhao Yuan

Two-dimensional (2D) van der Waals materials are increasingly seen as potential catalysts due to their unique structures and unmatched properties. However, achieving precise synthesis of these remarkable materials and regulating their atomic and electronic structures at the most fundamental level to enhance their catalytic performance remain a significant challenge. In this study, we synthesized single-crystal bulk PtTe crystals via chemical vapor transport and subsequently produced atomically thin, large PtTe nanosheets (NSs) through electrochemical cathode intercalation. These NSs are characterized by a significant presence of Te vacancy pairs, leading to undercoordinated Pt atoms on their basal planes. Experimental and theoretical studies together reveal that Te vacancy pairs effectively optimize and enhance the electronic properties (such as charge distribution, density of states near the Fermi level, and d-band center) of the resultant undercoordinated Pt atoms. This optimization results in a significantly higher percentage of dangling O–H water, a decreased energy barrier for water dissociation, and an increased binding affinity of these Pt atoms to active hydrogen intermediates. Consequently, PtTe NSs featuring exposed and undercoordinated Pt atoms demonstrate outstanding electrocatalytic activity in hydrogen evolution reactions, significantly surpassing the performance of standard commercial Pt/C catalysts.

10.1021/acsami.4c01273

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Citations (2)