检索结果-内蒙古大学图书馆

The Nature of Active Sites for Plasmon-Mediated Photothermal Catalysis and Heat-Coupled Photocatalysis in Dry Reforming of Methane

引用

Energy & Environmental materials 2023年第5期6卷 381-388页

作者： Jinqiang Zhang Liang Wang Xiaoli Zhao Lei Shi Haijun Chen Shu Zhang Peng Zhang Shuaijun Wang Laichang Zhang Yinfeng Wang Xiaoyuan Wang Yuezhao Zhu Huayang Zhang Xiaoguang Duan Mingbo Wu Guosheng Shao Shaobin Wang Hongqi Sun School of Engineering Edith Cowan University 270 Joondalup DriveJoondalup WA 6027Australia Jiangsu Key laboratory of Process Enhancement and New Energy Equipment Technology School of Mechanical and Power EngineeringNanjing Tech UniversityNanjing 211816China College of Materials Science and Engineering Nanjing Forestry UniversityNanjing 210037China School of Materials Science and Engineering Zhengzhou University Zhengzhou 450001China School of Chemical Engineering The University of Adelaide Adelaide South Australia 5005Australia State Key Laboratory of Heavy Oil Processing Institute of New EnergyCollege of Chemical EngineeringChina University of Petroleum(East China)Qingdao 266580China

Solar energy-induced catalysis has been attracting intensive interests and its quantum efficiencies in plasmon-mediated photothermal catalysis(P-photothermal catalysis)and external heat-coupled photocatalysis(E-photothermal catalysis)are ultimately determined by the catalyst structure for photo-induced energetic hot ***,different catalysts of supported(TiO_(2)-P25 and Al_(2)O_(3))platinum quantum dots are employed in photo,thermal,and photothermal catalytic dry reforming of *** experimental and computational results unveil different active sites(hot zones)on the two catalysts for photo,thermal,and photothermal *** hot zones of P-photothermal catalysis are identified to be the metal-support interface on Pt/P25 and the Pt surface on Pt/Al_(2)O_(3),***,a change of the active site to the Pt surface on Pt/P25 is for the first time observed in E-photothermal catalysis(external heating temperature of 700℃).The hot zones contribute to the significant enhancements in photothermal catalytic reactivity against *** study helps to understand the reaction mechanism of photothermal catalysis to exploit efficient catalysts for solar energy utilization and fossil fuels upgrading.

关键词： dry reforming of methane hot zones photothermal catalysis platinum-based catalysts

来源：评论

学校读者我要写书评

暂无评论

Cuprate-like electronic structures in infinite-layer nickelates with substantial hole dopings

引用

National Science Review 2024年第8期11卷 180-186页

作者： Xiang Ding Yu Fan Xiaoxiao Wang Chihao Li Zhitong An Jiahao Ye Shenglin Tang Minyinan Lei Xingtian Sun Nan Guo Zhihui Chen Suppanut Sangphet Yilin Wang Haichao Xu Rui Peng Donglai Feng Advanced Materials Laboratory State Key Laboratory of Surface Physics and Department of Physics Fudan University School of Emerging Technology University of Science and Technology of China New Cornerstone Science Laboratory University of Science and Technology of China Shanghai Research Center for Quantum Sciences National Synchrotron Radiation Laboratory and School of Nuclear Science and Technology University of Science and Technology of China

Superconducting infinite-layer（IL） nickelates offer a new platform for investigating the long-standing problem of high-temperature *** models were proposed to understand the superconducting mechanism of nickelates based on the calculated ele ctronic structure,and the multiple Fermi surfaces and multiple orbitals involved create complications and controversial *** the past five years,the lack of direct measurements of the electronic structure has hindered the understanding of nickelate *** we fill this gap by directly resolving the electronic structures of the parent compound LaNiO2and superconducting La0.8Ca0.2NiO2using angle-resolved photoemission *** find that their Fermi surfaces consist of a quasi-2D hole pocket and a 3D electron pocket at the Brillouin zone corner,whose volumes change upon Ca *** Fermi surface topology and band dispersion of the hole pocket closely resemble those observed in hole-doped ***,the cuprate-like band exhibits significantly higher hole doping in superconducting La0.8Ca0.2NiO2compared to superconducting cuprates,highlighting the disparities in the electronic states of the superconducting *** observations highlight the novel aspects of the IL nickelates,and pave the way toward the microscopic understanding of the IL nickelate family and its superconductivity.

关键词： unconventional superconductivity nickelate superconductors oxide MBE ARPES electronic structure superconducting phase diagram

来源：评论

学校读者我要写书评

暂无评论

Synergistic rare-earth yttrium single atoms and copper phosphide nanoparticles for high-selectivity ammonia electrosynthesis

引用

Rare Metals 2024年第11期43卷 5792-5801页

作者： Yi-Meng Cai Yang-Hua Li Yi Xiao Quentin Meyer Qian Sun Wan-Jing Lai Shu-Wen Zhao Jun Li Lin-Jie Zhang Han Wang Zhang Lin Jun Luo Li-Li Han School of Materials Science and Engineering Institute for New Energy Materials and Low-Carbon TechnologiesTianjin University of TechnologyTianjin 300384China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China School of Chemistry The University of New South WalesSydneyNSW 2052Australia School of Metallurgy and Environment Central South UniversityChangsha 410083China Chinese National Engineering Research Center for Control&Treatment of Heavy Metal Pollution Changsha 410083China ShenSi Lab Shenzhen Institute for Advanced StudyUniversity of Electronic Science and Technology of ChinaShenzhen 518110China

Electrochemical nitrate reduction to NH_(3)holds a great promise for N-upcycling in nature,while its sluggish reaction kinetics involved in both the stepwise deoxygenation and hydrogenation processes necessitates the development of bespoke catalysts with multi-site ***,we report a hybrid catalyst composed of rare-earth(RE)yttrium(Y)single atoms and copper phosphide(Cu_(3)P)nanoparticles loaded on N,P-doped carbon(Y_(SA)-Cu_(3)P/CNP)through a chelating and pyrolysis *** to a synergistic contribution of Y single atoms and Cu_(3)P nanoparticles,Y_(SA)-Cu_(3)P/CNP achieves an impressive NH_(3)Faradaic efficiency(FE)of 92%at-0.5V(***)and the highest NH_(3)yield rate of11.4 mg·h^(-1)·cm^(-2)at-0.6 V(***)in an alkaline media,which surpass most of the reported *** intricate reaction pathway has been explored by online differential electrochemical mass spectrometry(DEMS),and the synergistic effect between Y single atoms and Cu_(3)P nanoparticles has been studied by in situ synchrotron X-ray absorption ***,density-functional theory(DFT)calculations unveil that the high-efficiency nitrate reduction on Y_(SA)-Cu_(3)P/CNP is attributed to a reduced energy barrier of the rate-determining deoxygenation step coupled with the enhanced stabilization of active hydrogen favorable for the hydrogenation steps,thereby boosting the overall reaction *** addition,a prototype Zn-nitrate battery utilizing Y_(SA)-Cu_(3)P/CNP as the cathode is *** work not only elucidates the mechanism behind the enhanced catalytic performance but also paves the way for the future development of highefficiency electrocatalysts through dual-site engineering.

关键词： Rare-earth single atom Cu_(3)P nanoparticle Synergistic electrocatalysis Nitrate reduction reaction Zn-nitrate battery

来源：评论

学校读者我要写书评

暂无评论

Ultra-Stretchable, High Conductive Hydrogels Electrolytes for Flexible Solid-state Supercapacitor with High Energy Density

SSRN

引用

SSRN 2024年

作者： Bao, Da Zhang, Xin Ji, Xinbin Li, Minghan Guan, Fucheng He, Jiahao Li, Zheng Xu, Yi Zhang, Sen Guo, Jing School of Textile and Materials Engineering Dalian Polytechnic University #1 Qing gong yuan Ganjingzi Liaoning Dalian116034 China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan430200 China College of Textile and Clothing Hunan Institute of Engineering Xiangtan411104 China State Key Laboratory of Bio-Fibers and Eco-textiles Qingdao University Qingdao266071 China Ministry of 11 Education Wuhan430200 China

The flexibility and safety of energy storage systems are crucial, and hydrogels as one of the most promising candidates for solid-state electrolytes. We present a conductive hydrogel based on sodium alginate that exhibits ultra-stretchable (4200%) and high conductivity (16.3 S m-1). The mechanical properties of the conductive hydrogel are achieved by optimizing the topology of the sodium alginate and harnessing the synergistic effect of non-covalent interaction among different components. And a conductive stucture within hydrogels was successfully established through the synergistic combination of ion and metal nanoparticles. The flexible supercapacitor (FSC) with conductive hydrogel as solid electrolytes demonstrated an area-specific capacitance of up to 274.28 mF cm-2 at a current density of 1 mA cm-2. And the energy density of the FSC is as high as 187 μWh cm-2 at a power density of 1.2 mW cm-2. The voltage range of the FSC is also extended to 1.4V. The FSC also exhibited exceptional flexibility and stability, including insensitivity to bending angles and remarkable cycle durability (82.4% after 10,000 cycles). The study presents a novel design for the development of solid-state electrolytes, with the aim of creating a new generation of FSC that exhibit superior safety and high energy density. © 2024, The Authors. All rights reserved.

关键词： Solid electrolytes

来源：评论

学校读者我要写书评

暂无评论

Pre-potassiated hydrated vanadium oxide as cathode for quasi-solid-state zinc-ion battery

引用

Chinese Chemical Letters 2022年第5期33卷 2663-2668页

作者： Qifei Li Xiangxiang Ye Hong Yu Chengfeng Du Wenping Sun Weiling Liu Hongge Pan Xianhong Rui School of Materials and Energy Guangdong University of TechnologyGuangzhou 510006China Center of Advanced Lubrication and Seal Materials Northwestern Polytechnical UniversityXi’an 710072China Institute of Science and Technology for New Energy Xi’an Technological UniversityXi’an 710021China School of Materials Science and Engineering State Key Laboratory of Silicon MaterialsZhejiang UniversityHangzhou 310027China School of Materials Science and Engineering Nanyang Technological UniversitySingapore 639798Singapore

Zinc-ion batteries(ZIBs),in particular quasi-solid-state ZIBs,occupy a crucial position in the field of energy storage devices owing to the superiorities of abundant zinc reserve,low cost,high safety and high theoretical capacity of zinc ***,as divalent Zn^(2+)ions experience strong electrostatic interactions when intercalating into the cathode materials,which poses challenges to the structural stability and higher demand in Zn^(2+)ions diffusion kinetics of the cathode ***,a microwave-assisted hydrothermal method is adopted to prepare pre-potassiated hydrated vanadium pentoxide(K_(0.52)V_(2)O_(5)·0.29H_(2)O,abbreviated as KHVO)cathode material,in which the potassium ions preinserted into the interlayers can act as“pillars”to stabilize the lamellar structure,and crystal water can act as“lubricant”to improve the diffusion efficiency of Zn^(2+)***,the KHVO displays high electrochemical properties with high capacity(∼300 mAh/g),superior rate capability(69 mAh/g at 5 A/g)and ultralong cycling performance(>1500 cycles at 2 A/g)in quasi-solid-state *** superior Zn storage properties result from the large diffusion coefficient and highly stable and reversible Zn^(2+)(de)intercalation reaction of KHVO.

关键词： Quasi-solid-state Zinc-ion batteries Hydrated vanadium oxide Pre-potassiated Electrochemical kinetics

来源：评论

学校读者我要写书评

暂无评论

Robust superamphiphobic coatings with gradient and hierarchical architecture and excellent anti-flashover performances

引用

Nano Research 2022年第8期15卷 7565-7576页

作者： Yi Xie Wei Xiong Shefiu Kareem Chuxiong Qiu Yongfei Hu Ivan PParkin Shengwu Wang Huayun Wang Junwu Chen Lee Li Zhi Chen Huajun Sun Xiujian Zhao State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070China Department of Chemistry University College LondonLondon WC1H 0AJUK State Key Laboratory of Advanced Electromagnetic Engineering and Technology(Huazhong University of Science&Technology) Wuhan 430074China State Grid Jiangxi Electric Power CompanyLtd.Electric Power Research InstituteNanchang 330096China Wuhan Shuneng New Material Co. LTDWuhan 430074China

Biomimetic superhydrophobic(SH)coatings have emerged as a promising alternative to traditional room temperature vulcanizing(RTV)silicone rubber coatings for improving the flashover strength of ***,organic contamination occurs in outdoor applications and thus a superamphiphobic(SAP)surface is more desirable but not yet reported for improving flashover ***,we developed a novel anti-flashover technique by fabricating robust SAP coating with unique gradient and micro-nanoscale hierarchical *** SAP coating was fabricated by sequentially spray-depositing a resin-based primer and a silica-based topcoat on substrates(i.e.,glass slides and insulators).The primer not only functions as an adhesive offering strong adhesion to the substrate but also offers a micromastoid-like structure facilitating the subsequent formation of hierarchical *** appropriate spraying pressure leads to a diffusion of the fluorocarbon-modified silica nanoparticles into the primer to form a unique gradient structure,by analogy to inserting bullets into a *** features render the SAP coating excellent robustness with strong abrasive resistance,excellent ultraviolet(UV)resistance,and excellent chemical and thermal *** flashover property of the SAP coating was explored and compared with that of SH and RTV specimens,from which a novel organic-contamination model to evaluate the flashover performance was *** coated SAP glass insulator demonstrated 42.9%pollution flashover voltage improvement than RTV-coated *** stated unique features reveal the convincing potential of the present SAP coatings to be applied for not only outdoor transmission line insulators for antiflashover but also other fields for self-cleaning,anti-fouling,and anti-icing.

关键词： superamphiphobic coatings superhydrophobic coatings insulator pollution flashover voltage anti-flashover

来源：评论

学校读者我要写书评

暂无评论

Dragonfly Wings-Inspired, Anti-Freezing, Ultra-Stretchable, and Transparent Nano-Structure Hydrogel for Non-Delayed Wearable Sensing at Low-Temperatures

SSRN

引用

SSRN 2024年

作者： Bao, Da Liu, Zhihao Jia, Shangyin Ji, Xinbin He, Jiahao Yang, Qiang Yao, Qiang Guan, Fucheng Zhang, Xin Xu, Yi Zhu, Shu Zhang, Sen Guo, Jing School of Textile and Materials Engineering Dalian Polytechnic University #1 Qing gong yuan Ganjingzi Liaoning Dalian116034 China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan430200 China College of Textile and Clothing Hunan Institute of Engineering Xiangtan411104 China College of Materials Science and Engineering Donghua University Shanghai201620 China State Key Laboratory of Bio-Fibers and Eco-textiles Qingdao University Qingdao266071 China

Conductive hydrogels, regarded as an optimal flexible electronic material. Nevertheless, the pressing concern of simultaneously achieving excellent mechanical and conductive properties in hydrogels necessitates immediate attention. In the study, the exceptional mechanical properties of hydrogels were achieved by employing a strategy that involves constructing a three-dimensional nano-structure network, inspired by the highly ordered structure observed in dragonfly wings. The conductivity and anti-freezing of the hydrogel were enhanced through the construction of a conductive mechanism, achieved by combining inorganic salts with metal nano-particles. The conductive hydrogel exhibits outstanding properties, including anti-freezing, ultra-stretchable (6000%), extraordinary high toughness (8.32 MJ m-3), low Young's modulus (3.8 kPa), impressive conductivity (16.2 S m-1), a transparency level of up to 91.2% and excellent sensitivity in strain sensor. The regulation of the hydrogel matrix's topology and the formation of bionic nano-structures synergistically establish the ultra-stretching and energy dissipation mechanism of the hydrogel. And the high conductivity of the hydrogel is achieved by constructing a synergistic conduction pathway, which incorporates metal nano-particles and inorganic salts. Under the stretching-induced effect of hydrogel, the conductive structure facilitates a more efficient pathway for conduction, thereby enhancing its conductivity and sensing sensitivity under significant strains. Subsequently, this hydrogel was successfully applied to wearable sensor technology, demonstrating surprisingly remarkably prompt non-delayed sensing performance even at low-temperatures. It approach presents abundant opportunities for expanding the application scope of hydrogels in flexible electronics. © 2024, The Authors. All rights reserved.

关键词： Hydrogels

来源：评论

学校读者我要写书评

暂无评论

Constructing ultrastable electrode/electrolyte interface for rapid potassium ion storage capability via salt chemistry and interfacial engineering

引用

Nano Research 2022年第3期15卷 2083-2091页

作者： Sheng Wen Xin Gu Xiangwei Ding Li Zhang Pengcheng Dai Liangjun Li Dandan Liu Wenchao Zhang Xuebo Zhao Zaiping Guo College of New Energy State Key Laboratory of Heavy Oil ProcessingChina University of Petroleum(East China)Qingdao 266580China Institute of Environmental Engineering School of Metallurgy and EnvironmentCentral South UniversityChangsha 410083China Institute for Superconducting and Electronic Materials University of WollongongWollongongNSW 2522Australia School of Chemical Engineering&Advanced Materials The University of AdelaideAdelaideSA 5005Australia

Conversion/alloying anode materials exhibiting high K storage capacities suffer from large volume variations and unstable electrode/electrolyte interfaces upon ***,taking SnS/reduced graphene oxide(SnS/rGO)anodes as an example,the electrochemical performance of SnS/rGO could significantly be improved via employing potassium bis(fluorosulfonyl)imide(KFSI)salt in electrolytes and ultrathin TiO_(2) ***-rich inorganic layer was demonstrated to help form robust SEI layer,which could suppress the side reactions to increase the Coulombic *** formed potassiated K_(x)TiO_(2) coating layer was constructed to boost charge transfer capability and K-ion diffusion *** as-prepared SnS/rGO@TiO_(2)-20 electrode in KFSI electrolyte delivers the high CE of 99.1%and 424 mAh·g^(−1) after 200 cycles with an ultrahigh capacity retention of 98.5%.

关键词： potassium-ion batteries SnS/rGO nanocomposite salt chemistry ultrathin TiO_(2)coating ion diffusion kinetics

来源：评论

学校读者我要写书评

暂无评论

P-band center theory guided activation of MoS_(2) basal S sites for pHuniversal hydrogen evolution

引用

Nano Research 2023年第5期16卷 6228-6236页

作者： Chao Meng Yuanfeng Gao Yue Zhou Kang Sun Yanmin Wang Ye Han Qianqian Zhao Xuemin Chen Han Hu Mingbo Wu State Key Laboratory of Heavy Oil Processing Institute of New EnergyChina University of Petroleum(East China)Qingdao 266580China College of Electrical Engineering and Automation Shandong University of Science and TechnologyQingdao 266590China College of Energy Storage Technology Shandong University of Science and TechnologyQingdao 266590China Institute of Chemical Industry of Forest Products Chinese Academy of ForestryNanjing 210042China School of Materials Science and Engineering Shandong University of Science and TechnologyQingdao 266590China College of Science Hebei University of Science and TechnologyShijiazhuang 050018China

The edge S sites of thermodynamically stable 2H MoS_(2)are active for hydrogen evolution reaction(HER)but the active sites are *** the dominance of the basal S sites,they are generally inert to HER because of the low p-band ***,we reported a synergistic combination of phase engineering and NH_(4)^(+) intercalation to promote the HER performance of MoS_(2).The rational combination of 1T and 2H phases raises the p-band center of the basal S sites while the intercalated NH4+ions further optimize and stabilize the electronic band of these *** S sites with regulated band structures afford moderate hydrogen adsorption,thus contributing to excellent HER performance over a wide pH *** an acid medium,this catalyst exhibits a low overpotential of 169 mV at 10 mA·cm^(−2)and Tafel slope of 39 mV·dec^(−1)with robust stability,superior to most of recently reported MoS_(2)-based non-noble *** combined use of in/ex-situ characterizations ravels that the appearance of more unpaired electrons at the Mo 4d-orbital reduces the d-band center which upshifts the p-band center of the adjacent S for essentially improved HER *** work provides guidelines for the future development of layered transition-metal-dichalcogenide catalysts.

关键词： molybdenum disulfide p-orbital electron structure basal S sites hydrogen evolution synergistic mechanism

来源：评论

学校读者我要写书评

暂无评论

Recent progress on synthesis of ZIF-67-based materials and their application to heterogeneous catalysis

引用

Green Energy & Environment 2022年第1期7卷 3-15页

作者： Chongxiong Duan Yi Yu Han Hu State Key Laboratory of Heavy Oil Processing College of Chemical EngineeringInstitute of New EnergyChina University of Petroleum(East China)Qingdao266580China School of Materials Science and Hydrogen Engineering Foshan UniversityFoshan528231China School of Chemistry and Chemical Engineering South China University of TechnologyGuangzhou510640China

In recent years,an increasing amount of interest has been dedicated to the synthesis and application of ZIF-67-based materials due to their exceptionally high surface area,tunable porosity,and excellent thermal and chemical *** review summarizes the latest strategies of synthesizing ZIF-67-based materials by exploring the prominent ***,the recent progress in the applications of ZIF-67-based materials in heterogeneous catalysis,including catalysis of the redox reactions,addition reactions,esterification reactions,Knoevenagel condensations,and hydrogenation-dehydrogenation reactions,has been elaborately ***,we end this work by shedding some light on the large-scale industrial production of ZIF-67-based materials and their applications in the future.

关键词： Zeolitic imidazolate framework-67 Synthetic methods Heterogeneous catalysis

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：