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Platinum clusters stabilized by zincosilicate zeolite for efficient propane dehydrogenation

Chinese Journal of Catalysis 2025年第4期71卷 208-219页

作者： Hao Liu Ying Zhang Liyang Liu Tianxiang Chen Xingcong Zhang Peng Hu Chao Xiong Jie Zhou Hao Zhang Lihui Dong Tsz Woon Benedict Lo Bing Nan Xiaohui He Hongbing Ji Key Laboratory of Bioinorganicand Synthetic Chemistry of Ministry of Education Fine Chemical Industry Research InstituteSchool of ChemistryIGCMESun Yat-sen UniversityGuangzhou 510275GuangdongChina Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology School of Chemistry and Chemical EngineeringGuangxi UniversityNanning 530004GuangxiChina Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteShanghai 200120China State Key Laboratory of Chemical Biology and Drug Discovery Department of Applied Biology and Chemical TechnologyThe Hong Kong Polytechnic UniversityHunghomHong KongChina State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology Institute of Green Petroleum Processing and Light Hydrocarbon ConversionCollege of Chemical EngineeringZhejiang University of TechnologyHangzhou 310014ZhejiangChina Guangdong Technology Research Center for Synthesis and Separation of Thermosensitive Chemicals Guangzhou 510006GuangdongChina

Dispersing metals from nanoparticles to clusters is often achieved using ligand protection methods,which exhibit unique properties such as suppressing structure-sensitive side ***,this method is limited by the use of different metal precursor salts corresponding to different *** alternative approach,the ion exchange(IE)method,can overcome this limitation to some ***,there is still an urgent need to address the stabilization of metals(especially precious metals)by using IE ***,we reported a Pt cluster catalyst prepared mainly by anchoring Pt atoms via O located near the framework Zn in zincosilicate zeolites and riveted by zeolite surface rings after reduction(reduced Pt/Zn-3-IE).The catalyst can achieve an initial propane conversion of 26%in a pure propane atmosphere at 550℃and shows little deactivation even after 7.5 d of ***,the alteration of catalyst by the introduction of framework Zn was also highlighted and interpreted.

关键词： Zincosilicate zeolite Acid-site identification Rivet effect Pt clusters Propane dehydrogenation

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Understanding the Environmentally Driven Corrosion Behavior and Mechanism of Aln/Mo Functionally Graded materials Exposed to Li/Lif-Licl-Libr Vapor

SSRN

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SSRN 2022年

作者： Jia, Mingyong Chen, Fei He, Yaling Wu, Yueqi Shen, Qiang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan430074 China

The environment temperature-driven corrosion behavior and mechanism of Li/LiF-LiCl-LiBr vapor on AlN/Mo functionally graded materials were investigated. It is shown that the corrosion failure of AlN/Mo FGMs driven by Li vapor begins at 650 ℃. Li vapor not only diffuses along the grain boundaries of AlN but also enters the interior of the adjacent AlN grains, leading to the disintegration of the AlN matrix. The 3D framework of Mo is hardly affected in Li/LiF-LiCl-LiBr vapor, preventing the cracking caused by inconsistent deformation inside the AlN/Mo sealing component. This work provides a reference for the operating temperature of liquid metal batteries. © 2022, The Authors. All rights reserved.

关键词： Aluminum nitride

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Defect and Doping Co‑Engineered Non‑Metal Nanocarbon ORR Electrocatalyst

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Nano-Micro Letters 2021年第4期13卷 178-207页

作者： Jian Zhang Jingjing Zhang Feng He Yijun Chen Jiawei Zhu Deli Wang Shichun Mu Hui Ying Yang Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan 430074People’s Republic of China Pillar of Engineering Product Development Singapore University of Technology and Design8 Somapah RoadSingapore 487372Singapore State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070People’s Republic of China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu Hydrogen ValleyFoshan 528200People’s Republic of China

Exploring low-cost and earth-abundant oxygen reduction reaction(ORR)electrocatalyst is essential for fuel cells and metal–air *** them,non-metal nanocarbon with multiple advantages of low cost,abundance,high conductivity,good durability,and competitive activity has attracted intense interest in recent *** enhanced ORR activities of the nanocarbons are normally thought to originate from heteroatom(e.g.,N,B,P,or S)doping or various induced ***,in practice,carbon-based materials usually contain both dopants and *** this regard,in terms of the co-engineering of heteroatom doping and defect inducing,we present an overview of recent advances in developing non-metal carbon-based electrocatalysts for the *** characteristics,ORR performance,and the related mechanism of these functionalized nanocarbons by heteroatom doping,defect inducing,and in particular their synergistic promotion effect are emphatically analyzed and ***,the current issues and perspectives in developing carbon-based electrocatalysts from both of heteroatom doping and defect engineering are *** review will be beneficial for the rational design and manufacturing of highly efficient carbon-based materials for electrocatalysis.

关键词： Defect Doping Electrocatalyst Oxygen reduction reaction Non-metal nanocarbon

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Tailoring polymer acceptors by electron linkers for achieving efficient and stable all-polymer solar cells

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National Science Review 2022年第2期9卷 88-98页

作者： Qiang Wu Wei Wang Yao Wu Rui Sun Jing Guo Mumin Shi Jie Min The Institute for Advanced Studies Wuhan University Key Laboratory of Materials Processing and Mold (Zhengzhou University) Ministry of Education Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and Devices South China University of Technology

The trade-off between efficiency and stability is a bit vague,and it can be tricky to precisely control the bulk morphology to simultaneously improve device efficiency and ***,three fused-ring conducted polymer acceptors containing fur an,thiophene and selenophene as the electron linkers in their conjugated backbones,namely PY-O,PY-S and PY-S e,were designed and *** electron linker engineering affects the intermolecular interactions of relative polymer acceptors and their charge transport ***,excellent material compatibility was achieved when PY-Se was blended with polymer donor PBDB-T,resulting in nanoscale domains with favorable phase *** optimized PBDB-T:PY-Se blend not only exhibits maximum performance with a power conversion efficiency of 15.48%,which is much higher than those of PBDB-T:PY-O(9.80%) and PBDB-T:PY-S(14.16%) devices,but also shows better storage and operational stabilities,and mechanical *** work demonstrates that precise modification of electron linkers can be a practical way to simultaneously actualize molecular crystallinity and phase mis cibility for improving the performance of all-polymer solar cells,showing practical significance.

关键词： all-polymer solar cells polymer acceptors electron linker intermolecular interaction molecular compatibility stability

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富羟基PtNi纳米粒子作为海水中电化学析氢反应的高效催化剂（英文）

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Science China materials 2025年

作者：赵文英杨雄肖宇轩余菲田歌沈凌卢毅耿伟吴思明应杰 Ion Tiginyanu Kenneth I. Ozoemena 阳晓宇 State Key Laboratory of Silicate Materials for Architectures & State Key Laboratory of Advanced Technology for Materials Synthesis and Processing & School of Chemistry Chemical Engineering and Life Sciences & Laoshan Laboratory & School of Materials Science and Engineering & International School of Materials Science and Engineering Wuhan University of Technology School of Chemical Engineering and Technology Sun Yat-sen University National Center for Materials Study and Testing Technical University of Moldova Molecular Sciences Institute School of Chemistry University of the Witwatersrand National Energy Key Laboratory for New Hydrogen-Ammonia Energy Technologies Foshan Xianhu Laboratory

Cl-吸附及腐蚀效应是Pt基催化剂在海水析氢反应（HER）中性能的主要障碍.虽然引入羟基是提升HER动力学和缓解氯毒化的有效策略,但在Pt基催化剂体系中实现这一策略仍具挑战性.本研究通过高温还原法制备了具有Ni空位（路易斯酸位点）的PtN...

Cl-吸附及腐蚀效应是Pt基催化剂在海水析氢反应（HER）中性能的主要障碍.虽然引入羟基是提升HER动力学和缓解氯毒化的有效策略,但在Pt基催化剂体系中实现这一策略仍具挑战性.本研究通过高温还原法制备了具有Ni空位（路易斯酸位点）的PtNi合金纳米颗粒.路易斯酸位点促进Ni-LDH载体上晶格羟基向表面羟基的转化.Ni-LDH的晶格羟基通过与路易斯酸位点相互作用,产生表面羟基并协同提升其表面亲水性.这种双功能特性既能促进水分子吸附,又可抑制Cl-吸附.优化后的PtNi/Ni-LDH在碱性真实海水中展现出优异的HER性能,仅需1 9 mV过电位即可达到1 0 mA cm-2电流密度,塔菲尔斜率为31 mV dec-1,并在100小时耐久性测试中具有优异的稳定性.该研究为通过定向羟基工程设计高效海水裂解催化剂提供了理论基础.

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用于紫外线成像和无线报警的水凝胶基可伸缩、高稳定性和高性能的光电传感器

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Science China materials 2024年第6期67卷 1926-1937页

作者：洪杰钊姚帝杰王浩丁琼玲罗艺冰于家豪张鹤曾令兴杨柏儒王冰陶凯吴进 State Key Laboratory of Optoelectronic Materials and Technologies and Guangdong Province Key Laboratory of Display Material and Technology School of Electronics and Information TechnologySun Yat-sen UniversityGuangzhou 510275China Ministry of Education Key Laboratory of Micro and Nano Systems for Aerospace Northwestern Polytechnical UniversityXi’an 710072China Research&Development Institute of Northwestern Polytechnical University in Shenzhen Northwestern Polytechnical UniversityShenzhen 518063China State Key Laboratory of Transducer Technology Shanghai 200050China Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing National Engineering Research Center of Novel Equipment for Polymer ProcessingKey Laboratory of Polymer Processing Engineering(SCUT)Ministry of EducationSouth China University of TechnologyGuangzhou 510641China Engineering Research Center of Polymer Green Recycling of Ministry of Education College of Environment and ResourcesFujian Normal UniversityFuzhou 350007China State Key Laboratory of Polymer Materials Engineering Sichuan UniversityChengdu 610065China

柔性可穿戴的紫外线探测器在个体紫外线暴露监测、智能仿生眼和军事领域受到广泛关注.然而,传统不可拉伸的材料和器件结构设计限制了设备在可动态变形的人体皮肤和非平面表面上的精确监测应用和稳定附着.在本研究中,我们提出了基于氧化... 详细信息

柔性可穿戴的紫外线探测器在个体紫外线暴露监测、智能仿生眼和军事领域受到广泛关注.然而,传统不可拉伸的材料和器件结构设计限制了设备在可动态变形的人体皮肤和非平面表面上的精确监测应用和稳定附着.在本研究中,我们提出了基于氧化铜/碳-水凝胶-氧化锌/碳的新型应变隔离异质结构的本征可拉伸(拉伸应变或弯曲高达150%)紫外线探测器,该探测器具有高灵敏度(开/关比为2100%)、高稳定性(大于4000次循环),以及快速响应和恢复时间(分别为1.5和4 s).值得注意的是,该探测器通过水凝胶桥在氧化铜/碳和氧化锌/碳电极之间引入的p-n结能带结构,以及离子导电水凝胶中I^(-)/I_(3)^(-)的电化学反应机制,显著提高了其载流子效率和紫外线响应强度.本文通过集成传感器与所设计的电路板,进一步开发了一种无线紫外线报警系统,用于紫外线强度超标警报.此外,本文还设计了一种光电传感器阵列,并将其用作视网膜假体,以实现对环境紫外线强度的实时监测和成像.本文基于水凝胶基异质结构为开发可穿戴、可拉伸的光电紫外线传感器单元和成像阵列提供了一种新的可行方法.

关键词： flexible hydrogel sensors stretchable UV sensors UV imaging array optoelectronic sensors wireless alarm

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Tunable broadband near-infrared luminescence of chromium with self-induced valence variation in Sr3In2Ge3O12

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Ceramics International 2025年

作者： Yang, Xiongfeng Fan, Xing He, Fangqian Zhang, Jianjie Tang, Chunhai Su, Liumei State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials School of Resources Environment and Materials Guangxi University Nanning530004 China School of Materials and Environment Guangxi Key Laboratory of Advanced Structural Materials and Carbon Neutralization Guangxi Colleges and Universities Key Laboratory of Eco-friendly Materials and Ecological Restoration Guangxi Minzu University Nanning530105 China

The demand for high-performance near-infrared (NIR) light-emitting materials has grown in recent years due to their great potential in numbers of technological fields, including non-destructive testing, optical telecommunications, and biological imaging. Herein, we present a novel Cr-activated NIR light-emitting garnet (Sr3In2Ge3O12) material with broadband dual-emission at NIR-I (860 nm, FWHM = 120 nm) and NIR-II (1480 nm, FWHM = 280 nm) regions under blue light excitation. Cr-doping results in the generation of multiple impurity levels within the band structure of Sr3In2Ge3O12, inducing a change in the host from an indirect to a direct band gap n-type semiconductor. Thanks to the multiple-sites occupancy of Cr ions in Sr3In2Ge3O12, the NIR dual-emission is verified to derive from the self-induced valence variation of Cr3+ and the intervalence energy transfer associated with Cr3+-Cr4+ aggregation. The large thermal activation energy and the weak electron-phonon coupling effect contribute to excellent thermal stability of the phosphor, with the emission intensities of Cr3+ and Cr4+ at 423 K maintaining 81.9 % and 86.3 % of that at room temperature. Moreover, the incorporation of Ca2+ into the Sr2+ lattice site enables the realization of tunable NIR emission in Sr3In2Ge3O12:Cr. The Sr3In2Ge3O12:Cr phosphor can be effectively utilized for the non-invasive detection of functional groups in a liquid medium. This work provides new insights into the design of broadband dual-emission light-emitting materials, which can be achieved by selecting an appropriate host to induce a valence variation in transition metal activators. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Phosphors

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Engineering Mesoporous Structure in Amorphous Carbon Boosts Potassium Storage with High Initial Coulombic Efficiency

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Nano-Micro Letters 2020年第11期12卷 39-50页

作者： Ruiting Guo Xiong Liu Bo Wen Fang Liu Jiashen Meng Peijie Wu Jinsong Wu Qi Li Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070People’s Republic of China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu Hydrogen ValleyFoshan 528200People’s Republic of China

Amorphous carbon shows great potential as an anode material for high-performance potassium-ion batteries;however,its abundant defects or micropores generally capture K ions,thus resulting in high irreversible capacity with low initial Coulombic efficiency(ICE)and limited practical ***,pore engineering via a facile self-etching strategy is applied to achieve mesoporous carbon(meso-C)nanowires with interconnected *** and evenly distributed mesopores could provide short K^+ pathways for its rapid *** to microporous carbon with highly disordered structure,the meso-C with Zn-catalyzed short-range ordered structure enables more K^+to reversibly intercalate into the graphitic ***,the mesoC shows an increased capacity by ~100 mAh g^-1 at 0.1 A g^-1,and the capacity retention is 70.7% after 1000 cycles at 1 A g^-*** in/ex situ characterizations reveal the reversible structural changes during the charging/discharging ***,benefiting from the mesoporous structure with reduced specific surface area by 31.5 times and less defects,the meso-C generates less irreversible capacity with high ICE up to 76.7%,one of the best reported values so *** work provides a new perspective that mesopores engineering can effectively accelerate K^+ diffusion and enhance K^+ adsorption/intercalation storage.

关键词： Potassium-ion battery Mesopores engineering Storage mechanism Initial Coulombic efficiency

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基于6,13-双氰基并五苯一维滑移堆积微米带状晶体的双极性电荷传输

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Science China materials 2023年第6期66卷 2429-2435页

作者：王宗瑞胡洋谢玉洁郄凤翔郭俊峰张磊史春风 Florian Glöcklhofer 甄永刚 Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic CompositesBeijing University of Chemical TechnologyBeijing 100029China State Key Laboratory of Catalytic Materials and Reaction Engineering Research Institute of Petroleum ProcessingSINOPECBeijing 100083China State Key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhou 510640China Department of Chemistry and Centre for Processable Electronics Imperial College LondonLondonW120BZUnited Kingdom State Key Laboratory of Optoelectronic Materials and Technologies Sun Yat-sen UniversityGuangzhou 510275China

基于有机π共轭体系的一维自组装微纳米材料(1D-MNMs)具有较少的散射电荷传输、尺寸适中、易于制备等优点,可以方便地构筑集成微电路.虽然基于p沟道或n沟道有机半导体的一维自组装微纳米材料已经取得了巨大的进展,但遗憾的是,迄今为止,... 详细信息

基于有机π共轭体系的一维自组装微纳米材料(1D-MNMs)具有较少的散射电荷传输、尺寸适中、易于制备等优点,可以方便地构筑集成微电路.虽然基于p沟道或n沟道有机半导体的一维自组装微纳米材料已经取得了巨大的进展,但遗憾的是,迄今为止,基于双极性有机半导体的一维自组装微纳米材料还非常缺乏.本文利用物理气相传输法,制备了基于6,13-双氰基并五苯(DCP)的一维滑移堆积新型自组装微纳米材料,其表现出良好的双极性电荷传输特性,电子和空穴迁移率分别达到0.34和0.38 cm2 V^(-1)s^(-1),是一维自组装微纳米材料中最好的双极性电荷传输特性之一.此外,基于双极性DCP的一维自组装微纳米材料构建了互补型反相器,增益可达7,表明其在有机逻辑电路中具有潜在的应用前景.

关键词：微纳米材料有机半导体电荷传输自组装双极性逻辑电路空穴迁移率并五苯

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Carbon decorated Li_(3)V_(2)(PO_(4))_(3) for high-rate lithium-ion batteries:Electrochemical performance and charge compensation mechanism

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Journal of Energy Chemistry 2021年第2期30卷 124-131,I0005页

作者： Manling Ding Chen Cheng Qiulong Wei Yue Hu Yingying Yan Kehua Dai Jing Mao Jinghua Guo Liang Zhang Liqiang Maig Institute of Functional Nano&Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&1 DevicesSoochow UniversitySuzhou 215123JiangsuChina Department of Materials Science and Engineering Fujian Key Laboratory of Materials GenomeCollege of MaterialsXiamen UniversityXiamen 361005FujianChina College of Chemistry Tianjin Normal UniversityTianjin 300387China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001HenanChina Advanced Light Source Lawrence Berkeley National LaboratoryBerkeleyCA 94720United States Department of Chemistry and Biochemistry University of CaliforniaSanta CruzCA 95064United States State Key Laboratory of Advanced Technology for Materials Synthesis and Processing International School of Materials Science and EngineeringWuhan University of Technology.Wuhan 430070HubeiChina

Fast charging and high-power delivering batteries are highly demanded in mobile electronics,electric vehicles and grid energy storage,but there are full of *** star-material Li_(3)V_(2)(PO_(4))_(3) is demonstrated as a promising high-rate cathode material meeting the above ***,we report the carbon decorated Li_(3)V_(2)(PO_(4))_(3) (LVP/C) cathode prepared via a facile method,which displays a remarkable high-rate capability and long-term cycling ***,the prepared LVP/C delivers a high discharge capacity of 122 mAh g^(-1)(-93% of the theoretical capacity) at a high rate up to 20 C and a superior capacity retention of 87.1% after 1000 ***,by applying a combination of X-ray absorption spectroscopy and full-range mapping of resonant inelastic X-ray scattering,we clearly elucidate the structural and chemical evolutions of LVP upon various potentials and cycle *** show unambiguous spectroscopic evidences that the evolution of the hybridization strength between V and O in LVP/C as a consequence of lithiation/delithiation is highly reversible both in the bulk and on the surface during the discharge-charge processes even over extended cycles,which should be responsible for the remarkable electrochemical performance of LVP/*** present study provides not only an effective synthesis strategy but also deeper insights into the surface and bulk electrochemical reaction mechanism of LVP,which should be beneficial for the further design of high-performance LVP electrode materials.

关键词： Lithium-ion batteries Li_(3)V_(2)(PO_(4))_(3) Charge compensation mechanism X-ray absorption spectroscopy Resonant inelastic X-ray scattering

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