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Interfacial design for detection of a few molecules

Chemical Society reviews 2023年第2期52卷 779-794页

作者： Ying Dong Jing Li Christoph Janiak Xiao-Yu Yang Department of Forensic Medicine Tongji Medical College Huazhong University of Science and Technology 13 Hangkong Road Wuhan 430030 China. Shenzhen Huazhong University of Science and Technology Research Institute 9 Yuexing Third Road Nanshan District Shenzhen 518000 China. Hubei Province Key Laboratory of Coal Conversion and New Carbon Materials School of Chemistry and Chemical Engineering Wuhan University of Science and Technology 947 Peace Avenue Wuhan 430081 China. jli82@***. Institut für Anorganische Chemie und Strukturchemie Heinrich-Heine-Universität Düsseldorf 40204 Düsseldorf Germany. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing & Shenzhen Research Institute & Joint Laboratory for Marine Advanced Materials in Pilot National Laboratory for Marine Science and Technology (Qingdao) Wuhan University of Technology 122 Luoshi Road Wuhan 430070 China. xyyang@***. School of Engineering and Applied Sciences Harvard University Cambridge Massachusetts 02138 USA. xyyang@seas.harvard.edu.

Major advances in molecular detection are being driven by goals associated with the development of methods that are amenable to miniaturization and automation, and that have high sensitivity and low interference. The new detection methods are confronted by many interfacial issues, which when properly addressed can lead to improved performance. One interfacial property, special wettability, can facilitate precise delivery and local enrichment of molecules to sensing elements. This review summarizes applications of unique features of special wettability in molecular detection including (1) chemical and electrochemical reactions in anchored microdroplets on superwetting surfaces, (2) enrichment of analytes and active materials at low contact areas between droplets and superwetting surfaces, (3) complete opposite affinities of superwetting surfaces toward nonpolar/polar solutes and oil/water phases, and (4) directional droplet transportation on asymmetric superwetting surfaces. The challenges and opportunities that exist in design and applications of special wettability in interfacial delivery and enrichment for detection of a few molecules are also discussed.

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Achieving Efficient Alkaline Hydrogen Evolution Reaction on Long-Range Ni Sites in Ru Clusters-Immobilized Ni3n Array Catalyst

SSRN

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SSRN 2022年

作者： Gao, Xiaorui Zang, Wenjie Li, Xin Qian, Bin Zheng, Lirong Kou, Zongkui School of Electronic and Information Engineering Changshu Institute of Technology Changshu 215500 China Department of Materials Science and Engineering University of California-Irvine IrvineCA92697 United States School of Physical & Mathematical Sciences Nanyang Technological University 637371 Singapore Beijing Synchrotron Radiation Facility Institute of High Energy Physics Chinese Academy of Sciences Beijing100049 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China

Hydrogen (H2) production from alkaline water electrocatalysis is economically appealing yet significantly hindered by the sluggish H2O adsorption and H* binding kinetics on active sites during hydrogen evolution reaction (HER). Herein, we interfacially immobilize Ru clusters on the hierarchical nickel nitride (Ru-Ni3N) nanosheet arrays via the filling of Ru3+ species into the metal vacancies of nickel hydroxide precursors and the subsequent controllable nitridation. The optimized Ru-Ni3N shows the outstanding HER performance, affording a 30-fold rise in the intrinsic activity of Ni sites, a outperforming-Pt/C overpotential at ≥125 mA cm-2 while remaining a robust stability. We further establish by a combined study of density functional theory (DFT) calculations with experimental analyses that long-range Ni sites around Ru sites act as active sites via the electron delocalization, remarkably weakening the H2O adsorption and H* binding barriers for enhancing the alkaline HER kinetics. Moreover, it also demonstrates an excellent pH-universal HER and overall water splitting performance. © 2022, The Authors. All rights reserved.

关键词： Electrocatalysts

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Pressure induced convergence of conduction bands in Al doped Mg_(2)Si: Experiment and theory

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Journal of Materiomics 2019年第1期5卷 81-87页

作者： Jialiang Li Xiaolian Zhang Bo Duan Yunlong Cui Houjiang Yang Hongtao Wang Junchao Li Xiaojun Hu Gang Chen Pengcheng Zhai Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics Wuhan University of TechnologyWuhan430070China High Pressure High Temperature Institute of Physics Wuhan University of TechnologyWuhan430070China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan430070China

High-pressure and high-temperature(HPHT)synthesis provides an effective way to tune the band structure of materials and improve their electronic *** investigate the influence of synthesis pressure on electronic properties,Mg_(1.97)Al_(0.03)Si samples were synthesized using the HPHT *** maximum effective mass 0.92me is obtained for the sample prepared with the synthesis pressure of 3 GPa,leading to the biggest Seebeck coefficient201.3 mV/K at room ***,the 3 GPa sample obtains the higher electron carrier concentration and electrical conductivity,resulting in nearly overall enhancement of power *** Density Functional Theory(DFT)calculations evidences that the Conduction Bands Minimum(CBM)can be tuned effectively by applied pressure and the convergence of the CBM leads to a larger effective mass of DOS,which are beneficial to the enhancement of power *** results indicate that high-pressure is a powerful tool to tune Mg_(1.97)Al_(0.03)Si band structures.

关键词： Mg2Si High-pressure synthesis Band degeneracy Thermoelectric materials

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Enhanced photocatalytic H2-production activity of WO3/TiO2 step-scheme heterojunction by graphene modification

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Chinese Journal of Catalysis 2020年第1期41卷 9-20页

作者： Fei He Aiyun Meng Bei Cheng Wingkei Ho Jiaguo Yu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing International School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070HubeiChina Department of Science and Environmental Studies and State Key Laboratory in Marine Pollution The Education University of Hong KongTai PoN.T.Hong KongChina Faculty of Science King Abdulaziz UniversityJeddah 21589Saudi Arabia

Sunlight-driven photocatalytic water-splitting for hydrogen(H2)evolution is a desirable strategy to utilize solar ***,this strategy is restricted by insufficient light harvesting and high photogenerated electron-hole recombination rates of TiO2-based ***,a graphene-modified WO3/TiO2 step-scheme heterojunction(S-scheme heterojunction)composite photocatalyst was fabricated by a facile one-step hydrothermal *** the ternary composite,TiO2 and WO3 nanoparticles adhered closely to reduced graphene oxide(rGO)and formed a novel S-scheme ***,rGO in the composite not only supplied abundant adsorption and catalytically active sites as an ideal support but also promoted electron separation and transfer from the conduction band of TiO2 by forming a Schottky junction between TiO2 and *** positive cooperative effect of the S-scheme heterojunction formed between WO3 and TiO2 and the Schottky heterojunction formed between TiO2 and graphene sheets suppressed the recombination of relatively useful electrons and *** effect also enhanced the light harvesting and promoted the reduction reaction at the active ***,the novel ternary WO3/TiO2/rGO composite demonstrated a remarkably enhanced photocatalytic H2 evolution rate of 245.8μmol g^-1 h^-1,which was approximately 3.5-fold that of pure *** work not only presents a low-cost graphene-based S-scheme heterojunction photocatalyst that was obtained via a feasible one-step hydrothermal approach to realize highly efficient H2 generation without using noble metals,but also provides new insights into the design of novel heterojunction photocatalysts.

关键词： Step-like heterojunction S-scheme heterojunction S heterojunction Photocatalyst Hydrogen generation

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Corrigendum to "Research on Plastic Deformation and Machinability of Zone-Melted N-Type Bismuth Telluride Thermoelectric materials" [Scripta Materialia 261 (2025) 116630] (Scripta Materialia (2025) 261, (S1359646225000934), (10.1016/***.2025.116630))

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Scripta Materialia 2025年 266卷

作者： Ji, Chen Chen, Quansheng Hu, Zhili Zhao, Wenyu Hua, Lin School of Automotive Engineering Wuhan University of Technology Wuhan430070 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Hubei Key Laboratory of Advanced Technology for Automobile Components Wuhan University of Technology Wuhan430070 China Hubei Collaborative Innovation Center for Automotive Components Technology Wuhan University of Technology Wuhan430070 China

I am fully aware of the critical importance of accuracy in academic publishing and the hard work that goes into the editorial process. I assure you that these errors were unintentional. I kindly ask you to consider the necessary corrections to ensure the integrity of the published work. Below are the specific corrections needed: 1. Author Affiliation Correction: I have noticed that the affiliation of author b needs to be more precisely stated to accurately reflect the research context and origin. The original affiliation was not specific enough, which might cause confusion for readers. Original Text: "School of materials Science and Engineering, Wuhan University of technology, Wuhan 430070, China". Corrected Text: "state key Laboratory of advanced technology for materials synthesis and processing, Wuhan University of technology, Wuhan 430070, China". I sincerely apologize for any inconvenience this may have caused to the readers and the editorial team. This correction is essential to ensure the accuracy of the article information and to prevent any misunderstandings due to vague affiliation details.2. Correction in the Abstract on Page 1, Line 1: Original Text: "Bismuth telluride, a leading thermoelectric material in the medium-to-low temperature range, is widely used in thermoelectric cooling and power generation". This may mislead readers regarding its application temperature range. In fact, bismuth telluride is primarily an efficient thermoelectric material in the near-room-temperature range. Corrected Text: "Bismuth telluride, a leading near room temperature thermoelectric material, is widely used in thermoelectric cooling and power generation". This change will not affect the overall research content or conclusions but will ensure that the information is presented more accurately. This correction is necessary to enhance the accuracy of the statement. The original description might mislead readers about the specific temperature range where bismuth telluride is m

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The Impact Failure and Energy Dissipation Mechanism of Polyethylene Laminates

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Journal of Wuhan University of technology(materials Science) 2019年第3期34卷 723-727页

作者： SHU Zaiqin ZHANG Jinyong State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Institute of Material Science and EngineeringWuhan University of TechnologyWuhan430070China System Design Institute of Hubei Aerospace Technology Academy Wuhan430040China

The damage mechanism and energy dissipation of the Polyethylene (PE) laminates in impacting was investigated. It was found that the dissipated energy of the impacting sphere bullet by the 1-mmthick PE plate firstly increased with the impacting velocity increasing from 50 to about 300 m/s, and then decreased with the impacting velocity increasing up to 600 m/s. According to the measured deformation and damage degree, a numerical simulation of the dissipated energy was made and obvious offset was found with the experimental results. The quasi-static properties of the PE fibers, decreasing with increase in tensile velocity, may be the main reason for the offset.

关键词： polyethylene ballistic impact energy dissipation strain rate

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Boron-Induced Interstitial Effects Drive Water Oxidation on Ordered Ir−B Compounds

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Angewandte Chemie 2024年第35期136卷

作者： Ding Chen Ruohan Yu Hongyu Zhao Jixiang Jiao Xueqin Mu Jun Yu Prof. Shichun Mu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 P. R. China The Sanya Science and Education Innovation Park of Wuhan University of Technology Sanya 572000 P. R. China

Interstitial filling of light atoms strongly affects the electronic structure and adsorption properties of the parent catalyst due to ligand and ensemble effects. Different from the conventional doping and surface modification, constructing ordered intermetallic structures is more promising to overcome the dissolution and reconstruction of active sites through strong interactions generated by atomic periodic arrangement, achieving joint improvement in catalytic activity and stability. However, for tightly arranged metal lattices, such as iridium (Ir), obtaining ordered filling atoms and further unveiling their interstitial effects are still limited by highly activated processes. Herein, we report a high-temperature molten salt assisted strategy to form the intermetallic Ir−B compounds (IrB 1.1 ) with ordered filling by light boron (B) atoms. The B residing in the interstitial lattice of Ir constitutes favorable adsorption surfaces through a donor-acceptor architecture, which has an optimal free energy uphill in rate-determining step (RDS) of oxygen evolution reaction (OER), resulting in enhanced activity. Meanwhile, the strong coupling of Ir−B structural units suppresses the demetallation and reconstruction behavior of Ir, ensuring catalytic stability. Such B-induced interstitial effects endow IrB 1.1 with higher OER performance than commercial IrO 2 , which is further validated in proton exchange membrane water electrolyzers (PEMWEs).

关键词： interstitial effects intermetallic compounds oxygen evolution donor-acceptor architecture host–guest electron coupling

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Electric-field-assisted Proton Coupling Enhanced Oxygen Evolution Reaction

Research Square

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Research Square 2024年

作者： Pan, Xuelei Yan, Mengyu Liu, Qian Zhou, Xunbiao Liao, Xiaobin Sun, Congli Zhu, Jiexin McAleese, Callum Couture, Pierre Sharpe, Matthew K. Smith, Richard Peng, Nianhua England, Jonathan Tsang, Shik Chi Edman Zhao, Yunlong Mai, Liqiang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing International School of Materials Science and Engineering Wuhan University of Technology Wuhan430070 China Wolfson Catalysis Centre Department of Chemistry University of Oxford OX1 3QR United Kingdom School of Materials Science and Engineering Zhejiang University Hangzhou310027 China UK National Ion Beam Centre University of Surrey Guildford SurreyGU2 7XH United Kingdom Dyson School of Design Engineering Imperial College London LondonSW7 2BX United Kingdom National Physical Laboratory Teddington MiddlesexTW11 0LW United Kingdom

The discovery of Mn-Ca complex in photosystem II stimulates research of manganese-based catalysts for oxygen evolution reaction (OER). However, conventional chemical strategies face challenges in regulating the four electron-proton processes of OER. Herein, we investigate alpha-manganese dioxide (α-MnO2) with typical MnIV-O-MnIII-HxO motifs as a model for adjusting proton coupling. We reveal that pre-equilibrium proton-coupled redox transition provides an adjustable energy profile for OER, paving the way for in-situ enhancing proton coupling through a new "reagent"— external electric field. Based on the α-MnO2 single-nanowire device, gate voltage induces a 6-fold increase in OER current density at 1.7 V versus reversible hydrogen electrode. Moreover, the proof-of-principle external electric field-assisted flow cell for water splitting demonstrates a 34% increase in current density and a 44.7 mW/cm2 increase in net output power. These findings indicate an in-depth understanding of the role of proton-incorporated redox transition and develop practical approach for high-efficiency electrocatalysis. © 2024, CC BY.

关键词： Oxygen

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Alumina Ceramics Fabricated by in-situ Consolidation of Pre-gelling Starch

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Journal of Wuhan University of technology(materials Science) 2018年第3期33卷 758-766页

作者：朱田丽王友法 State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology

An in-situ consolidation method was developed and optimized to successfully fabricate alumina ceramics using pre-gelling starch. Our results showed that the obtained ceramics have more homogeneous microstructure, higher density, higher flexural strength, and favorable biocompatibility compared to the regular one. During the process, cornstarch granules swelled and deformed but no fracture was observed. After the cornstarch granules bursted, alumina particles were suspended uniformly in the three-dimensional network structure to generate a much smoother surface. Below 0.5 wt% higher cornstarch content increased the flexural strength of prepared ceramics, while above 0.5 wt% the mechanical properties were compromised. Therefore the cornstarch content of 0.5% was the optimal concentration to achieve the highest mechanical strength of the prepared ceramics, with a measured flexural strength of 341 MPa, and a relative density of 96.01%.

关键词： pre-gelling starch in-situ consolidation alumina-ceramic flexural strength biocompatibility

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CdS/DBTSO-BDTO S-scheme photocatalyst for H₂ production and its charge transfer dynamics

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Wuli Huaxue Xuebao/ Acta Physico - Chimica Sinica 2025年第8期41卷

作者： Cai, Jiajie Cheng, Chang Liu, Bowen Zhang, Jianjun Jiang, Chuanjia Cheng, Bei State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Hubei Province Wuhan 430070 China Laboratory of Solar Fuel Faculty of Materials Science and Chemistry China University of Geosciences 68 Jincheng Street Hubei Province Wuhan 430078 China College of Environmental Science and Engineering Nankai University Tianjin 300350 China

Photocatalytic hydrogen (H2) production is a clean energy technology, with great potential for addressing the global energy crisis and related environmental problems. However, single-component photocatalysts often suf... 详细信息

Photocatalytic hydrogen (H₂) production is a clean energy technology, with great potential for addressing the global energy crisis and related environmental problems. However, single-component photocatalysts often suffer from low efficiency primarily due to fast charge carrier recombination and the tradeoff between light-absorbing capacity and redox capabilities. Constructing heterojunctions provides a promising strategy to overcome these drawbacks, and S-scheme heterojunctions have recently stood out, demonstrating the capability to efficiently facilitate electron/hole separation, while maximizing the redox capability. Among them, polymer-based S-scheme photocatalysts are emerging, though the charge carrier dynamics in inorganic-organic S-scheme heterojunctions remain to be elucidated. Herein, we fabricated an S-scheme heterojunction comprised of the conjugated polymer dibenzothiophene-S,S-dioxide-alt-benzodithiophene (DBTSO-BDTO) and cadmium sulfide (CdS) for photocatalytic H₂ production. The S-scheme mechanism was verified using in situ irradiated X-ray photoelectron spectroscopy, and the charge carrier transfer dynamics were analyzed in depth using femtosecond transient absorption spectroscopy, which revealed that a considerable fraction of electrons undergo interfacial charge transfer in the CdS/DBTSO-BDTO composite. Owing to the improved charge separation efficiency and redox capability, the performance of the composite surpassed that of DBTSO-BDTO and CdS, and the H₂ evolution rate of the optimized CdS/DBTSO-BDTO material reached 3313 μmol h⁻¹ g⁻¹, three times that of pure CdS. The findings provide new insights into the electron transfer mechanisms of S-scheme heterojunctions, and can guide the design of polymer-based photocatalysts for solar fuel production. © 2025 College of Chemistry and Molecular Engineering, Peking University

关键词： Cadmium sulfide Femtosecond transient absorption spectroscopy H2 production Photocatalysis S-scheme heterojunction

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