检索结果-内蒙古大学图书馆

Trace of Atomically Dispersed Pd Enables Unprecedented Butadiene Semihydrogenation Performance Over Copper Catalyst

ACS Catalysis 2025年第5期15卷 3810-3822页

作者： Zhao Wang Hao Yuan Jian Tao Shu-Lin Liu Ying Hong Zhi-Yi Hu Jian Zhang Bao-Lian Su The State Key Laboratory of Advanced Technology for Material Synthesis and Processing Wuhan University of Technology Wuhan Hubei 430070 P. R. China State Key Laboratory of Solidification Processing School of Materials Science and Engineering Northwestern Polytechnical University Xi’an Shaanxi 710000 P. R. China The State Key Laboratory of Advanced Technology for Material Synthesis and Processing Wuhan University of Technology Wuhan Hubei 430070 P. R. China；Laboratory of Inorganic Materials Chemistry (CMI) University of Namur 61 rue de Bruxelles Namur B-5000 Belgium

Semihydrogenation plays a key role in industrial hydrorefining of light alkenes, with a market above 400 billion by 2027. The high cost of commercial palladium-based catalysts strongly calls for innovation but with great challenges. Herein, copper nanoparticles decorated with a minimized ppm of Pd are developed through a chemical plating process to integrate the catalytic advantages of copper and palladium for achieving maximized catalysis in the semihydrogenation of a fatal impurity of butadiene in alkene feedstocks. The developed Pd–Cu catalyst (i.e., 114 ppm of Pd in Pd0.0033Cu1/TiO2) exhibits an unprecedented catalytic performance superior to commercial Pd/Al2O3, with 100% butene selectivity above 90% of butadiene conversion over 130 h on stream at 90 °C. Further exploration reveals that the atomically dispersed Pd on Cu nanoparticles, obtained at ultralow ppm levels of Pd loading, induces a hidden but critical H2trap, which concentrates H2on the Pd site for further H2dissociation that offers intermediate hydrogen atoms to the tandem butadiene semihydrogenation over the third layer of Cu atoms neighboring Pd through hydrogen spillover. Moreover, a threshold on Pd density was identified at Pd/Cu surficial atomic ratio of 1/138 (i.e., Pd0.0033Cu1/TiO2) for maximizing butadiene semihydrogenation performance, based on an extreme collaboration between Pd for H2dissociation and Cu for butadiene hydrogenation. This work provides important guidance for developing noble metal-saving catalysts in industrial applications.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Comprehensive Chlorine Suppression:Advances in materials and System Technologies for Direct Seawater Electrolysis

引用

Nano-Micro Letters 2025年第5期17卷 297-325页

作者： Cenkai Zhao Zheyuan Ding Kunye Zhang Ziting Du Haiqiu Fang Ling Chen Hao Jiang Min Wang Mingbo Wu State Key Laboratory of Heavy Oil Processing College of New EnergyChina University of Petroleum(East China)Qingdao 266580People’s Republic of China Beijing National Laboratory for Molecular Sciences New Cornerstone Science LaboratoryCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871People’s Republic of China Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237People’s Republic of China

Seawater electrolysis offers a promising pathway to generate green hydrogen,which is crucial for the net-zero emission *** seawater electrolysis is severely limited by high energy demands and system complexity,while the direct seawater electrolysis bypasses pre-treatment,offering a simpler and more cost-effective ***,the chlorine evolution reaction and impurities in the seawater lead to severe corrosion and hinder electrolysis’s ***,we review recent advances in the rational design of chlorine-suppressive catalysts and integrated electrolysis systems architectures for chloride-induced corrosion,with simultaneous enhancement of Faradaic efficiency and reduction of electrolysis’s ***,promising directions are proposed for durable and efficient seawater electrolysis *** review provides perspectives for seawater electrolysis toward sustainable energy conversion and environmental protection.

关键词： Direct seawater electrolysis Oxygen evolution reaction Hydrogen evolution reaction Chlorine suppression Seawater electrolysis system

来源：评论

学校读者我要写书评

暂无评论

Composition, Structure and Electrochemical Performance of Lisipscl Electrolyte with Li/Li-In Anodes in All-Solid-state Batteries

SSRN

引用

SSRN 2023年

作者： Zhang, Ji-Wei Wang, Wen-Hao Xie, Meng-Xiang Wu, Hou-Ran Wang, Yan-Pei Bao, Hao-Tian Cao, Bo-Qun Shao, Gang-Qin State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Hubei430070 China

The lithium silicon phosphor sulfo-chloride (LiSiPSCl) with a Li10GeP2S12-type structure is one of the most promising solid electrolytes (SEs) for all-solid-state lithium-ion batteries (ASSLIBs) due to its currently highest ionic conductivity at RT. In this work, three kinds of LiSiPSCl electrolytes, i.e. Li7.59(10)Si1.95(9)P1.65(7)S11.64(1)Cl0.36(1) (SE-450), Li7.67(12)Si1.90(1)P1.67(1)S11.61(2)Cl0.39(2) (SE-475) and Li7.58(5)Si1.75(4)P1.79(2)S11.54(4)Cl0.46(4) (SE-500), were prepared at 450 / 475 / 500 oC for 8 h through a solid-state method. The assembling of blocking / symmetrical / semi-blocking cells and ASSLIBs, and electrochemical measurements were carried out by coupling the three SEs with two kinds of anodes (Li metal and Li-In alloy) and one cathode of LiNbO3-coated LiNi0.8Co0.1Mn0.1O2 (NCM@LNO). Studies were focused on chemical compositions, phase compositions, structure refinements, electrolyte/anode and electrolyte/cathode interfacial stability. Results show that LiSiPSCl electrolytes had favorable interfacial stability with Li-In anode and exhibited low polarization voltage ( © 2023, The Authors. All rights reserved.

关键词： Sulfur compounds

来源：评论

学校读者我要写书评

暂无评论

Extended Phase Homogeneity and Improved Out-of-Plane Charge Transfer in Sb and Te Co-Alloyed N-Type Bise Layered Compound with Extraordinary Thermoelectric Performance

SSRN

引用

SSRN 2023年

作者： Yang, Xinru Xie, Chenghao Sun, Jinchang Xu, Weibin Li, Songlin Tang, Xinfeng Tan, Gangjian State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China

BiSe is a promising n-type layered thermoelectric compound near room temperature. However, its full potential is not realized because of its overall high electron density and inferior interlayer charge transport. In this study, we demonstrate that these drawbacks are well addressed by a feasible Sb and Te co-alloying approach. Sb, preferably substituting Bi atoms in the Bi2Se3 quintuplet layer, effectively neutralizing excess electrons of BiSe by suppressing positively charged Se vacancies. On the other hand, Te exclusively replaces Se, and promotes interlayer charge transfer by increasing chemical bond covalency. In addition, Te alloying significantly impedes phonon propagation of BiSe by introducing considerable size and mass disorders. More importantly, it is found that co-alloying expands the phase homogeneity of BiSe, which further intensifies the respective functions of Sb and Te alloying. As a consequence, a peak ZT value of 0.6 at 425 K is realized in the sample Bi0.6Sb0.4Se0.6Te0.4, which is 2.5 times that of pristine BiSe. Our work suggests that Sb and Te co-alloyed BiSe is a robust candidate for thermoelectric application near room temperature. © 2023, The Authors. All rights reserved.

关键词： Charge transfer

来源：评论

学校读者我要写书评

暂无评论

IABC: An iteratively automatic machine learning boosted hand-eye calibration method for laser displacement sensor

引用

Chinese Journal of Aeronautics 2023年第8期36卷 422-453页

作者： Helin LI Bin LIN Tianyi SUI Liang XU Chen ZHANG Shuai YAN Yang WANG Xinquan HAO Deyu LOU School of Mechanical Engineering Ministry of EducationTianjin UniversityTianjin 300350China International Institute for Innovative Design and Intelligent Manufacturing of Tianjin University Shaoxing 312000China Science and Technology of Advanced Functional Composite Laboratory Aerospace Research Institute of Materials and Processing TechnologyBeijing 100076China Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education Tianjin UniversityTianjin 300072China

An on-machine measuring(OMM)system with a laser displacement sensor(LDS)is designed for measuring free-form surfaces of hypersonic aircraft’s *** improve the measurement accuracy of the OMM system,a novel Iteratively Automatic machine learning Boosted hand-eye Calibration(IABC)method is *** the hand-eye relationship and LDS measurement errors can be calibrated in one calibration process without any hardware changes via ***,a new objective function is derived,containing analytical parameters of the handeye relationship and LDS ***,a hybrid calibration model composed of two kernels is proposed to solve the objective *** kernel is the analytical kernel designed for solving analytical *** kernel is the automatic machine learning(AutoML)kernel designed to model LDS *** two kernels are connected with stepwise iterations to find the best calibration *** with traditional methods,hand-eye experiments show that IABC reduces the calibration RMSE by about 50%.Verification experiments show that IABC reduces the measurement deviations by about 25%-50%and RMSEs within 40%.Even when the training data are obviously less than the test data,IABC performs *** demonstrate that IABC is more accurate than traditional hand-eye methods.

关键词： Hand-Eye Calibration Laser Displacement Sensor Machine learning Measurement errors On-Machine Measurement

来源：评论

学校读者我要写书评

暂无评论

Visible light triggered exfoliation of COF micro/nanomotors for efficient photocatalysis

引用

Green Energy & Environment 2023年第2期8卷 567-578页

作者： Kai Feng Liang Zhang Jiang Gong Jinping Qu Ran Niu Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationHubei Key Laboratory of Material Chemistry and Service FailureHubei Engineering Research Center for Biomaterials and Medical Protective MaterialsSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan430074China The State Key Laboratory Breeding Base of Basic Science of Stomatology(Hubei-MOST)&Key Laboratory of Oral Biomedicine Ministry of Education School and Hospital of StomatologyWuhan UniversityWuhan 430079China National Engineering Research Center of Novel Equipment for Polymer Processing Key Laboratory of Polymer Processing EngineeringMinistry of EducationGuangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced ManufacturingSchool of Mechanical and Automotive EngineeringSouth China University of TechnologyGuangzhou510641China

We report a new facile light-induced strategy to disperse micron-sized aggregated bulk covalent organic frameworks(COFs)into isolated COFs *** was achieved by a series of metal-coordinated COFs,namely COF-909-Cu,-Co or-Fe,where for the first time the diffusio-phoretic propulsion was utilized to design COF-based micro/*** mechanism studies revealed that the metal ions decorated in the COF-909 backbone could promote the separation of electron and holes and trigger the production of sufficient ionic and reactive oxygen species under visible light *** this way,strong light-induced self-diffusiophoretic effect is achieved,resulting in good dispersion of *** them,COF-909-Fe showed the highest dispersion performance,along with a drastic decrease in particle size from 5μm to500 nm,within only 30 min light irradiation,which is inaccessible by using traditional magnetic stirring or ultrasonication *** importantly,benefiting from the outstanding dispersion efficiency,COF-909-Fe micro/nanomotors were demonstrated to be efficient in photocatalytic degradation of tetracycline,about 8 times faster than using traditional magnetic stirring *** work opens up a new avenue to prepare isolated nanosized COFs in a high-fast,simple,and green manner.

关键词： Micro/nanomotor COFs Exfoliation Nanocatalyst Photocatalysis

来源：评论

学校读者我要写书评

暂无评论

High toughness and CMAS resistance of REAlO_(3)/RE_(2)Zr_(2)O_(7)(RE=La,Nd,Sm,Eu,Gd,and Dy)composites with eutectic composition for thermal barrier coatings

引用

Journal of advanced Ceramics 2024年第6期13卷 800-809页

作者： Zijian Zhang Jian Sun Guanghua Liu Yi Han Wei Liu Yi Li Wei Wang Xiangyang Liu Peng Zhang Wei Pan Chunlei Wan State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China China United Gas Turbine Technology Co. Ltd.Beijing 100015China College of Mathematics and Physics Beijing University of Chemical TechnologyBeijing 100029China College of Materials Science and Engineering Beijing University of TechnologyBeijing 100124China

Although rare earth zirconates(RE_(2)Zr_(2)O_(7))have garnered attention as viable candidates for thermal barrier coatings(TBCs),they suffer from low fracture toughness and accelerated calcium–magnesium–alumina–silicate(CMAS)melt corrosion at high service temperatures,which impedes their practical *** this work,we developed a series of REAlO_(3)/RE_(2)Zr_(2)O_(7)(RE=La,Nd,Sm,Eu,Gd,and Dy)composites with a eutectic composition that not only significantly enhanced the fracture toughness by more than 40%relative to that of RE_(2)Zr_(2)O_(7)but also exhibited improved resistance to CMAS *** increase in toughness arises from multiple mechanisms,such as ferroelastic toughening,fine-grain strengthening,and residual stress toughening,all of which trigger more crack defects and energy ***,the CMAS penetration depth of the REAlO_(3)/RE_(2)Zr_(2)O_(7)composites is approximately 36%lower than that of RE_(2)Zr_(2)O_(7).Al–O constituents in composites can capture CaO,SiO_(2),and MgO in CMAS melts and increase their viscosity,resulting in enhanced CMAS corrosion *** thermophysical properties of the REAlO_(3)/RE_(2)Zr_(2)O_(7)composites were also investigated,and their coefficient of thermal expansion and thermal conductivity are comparable to those of 7–8 wt%Y_(2)O_(3)partially stabilized ZrO2(YSZ),indicating their potential as TBC materials.

关键词： fracture toughness thermal property calcium-magnesium-alumina-silicate(CMAS)corrosion REAlO_(3)/RE_(2)Zr_(2)O_(7) eutectic composition

来源：评论

学校读者我要写书评

暂无评论

Interfacial Modification,Electrode/Solid‑Electrolyte Engineering,and Monolithic Construction of Solid‑state Batteries

引用

Electrochemical Energy Reviews 2023年第1期6卷 320-356页

作者： Qirong Liu Qiqi Chen Yongbing Tang Hui‑Ming Cheng Advanced Energy Storage Technology Research Center Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055GuangdongChina Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055GuangdongChina Shenzhen Key Laboratory of Energy Materials for Carbon Neutrality Shenzhen 518055GuangdongChina Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016LiaoningChina University of Chinese Academy of Sciences Beijing 100049China Nano Science and Technology Institute University of Science and Technology of ChinaSuzhou 215123JiangsuChina Key Laboratory of Advanced Materials Processing and Mold Ministry of EducationZhengzhou UniversityZhengzhou 450002HenanChina

Solid-state lithium-metal batteries(SLMBs)have been regarded as one of the most promising next-generation devices because of their potential high safety,high energy density,and simple packing ***,the practical applications of SLMBs are restricted by a series of static and dynamic interfacial issues,including poor interfacial contact,(electro-)chemical incompatibility,dynamic Li dendrite penetration,*** recent years,considerable attempts have been made to obtain mechanistic insight into interfacial failures and to develop possible strategies towards excellent interfacial properties for *** static and dynamic failure mechanisms at interfaces between solid electrolytes(SEs)and electrodes are comprehensively summarized,and design strategies involving interfacial modification,electrode/SE engineering,and the monolithic construction of SLMBs are discussed in ***,possible research methodologies such as theoretical calcu-lations,advanced characterization techniques,and versatile design strategies are provided to tackle these interfacial problems.

关键词： Solid-state batteries Interfacial issues Interfacial modification Electrode/solid-electrolyte engineering Monolithic construction

来源：评论

学校读者我要写书评

暂无评论

Microwave-assisted exploration of the electron configuration-dependent electrocatalytic urea oxidation activity of 2D porous NiCo_(2)O_(4) spinel

引用

Journal of Energy Chemistry 2024年第4期91卷 226-235页

作者： Jun Wan Zhiao Wu Guangyu Fang Jinglin Xian Jiao Dai Jiayue Guo Qingxiang Li Yongfei You Kaisi Liu Huimin Yu Weilin Xu Huiyu Jiang Minggui Xia Huanyu Jin State Key Laboratory of New Textile Materials and Advanced Processing Technologies Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing&FinishingWuhan Textile UniversityWuhan 430200HubeiChina Institute for Sustainability Energy and ResourcesThe University of AdelaideAdelaideSA 5005Australia Future Industries Institute University of South AustraliaMawson Lakes CampusAdelaideSA 5095Australia

Urea holds promise as an alternative water-oxidation substrate in electrolytic ***-valence nickelbased spinel,especially after heteroatom doping,excels in urea oxidation reactions(UOR).However,traditional spinel synthesis methods with prolonged high-temperature reactions lack kinetic precision,hindering the balance between controlled doping and highly active two-dimensional(2D)porous structures *** significantly impedes the identification of electron configuration-dependent active sites in doped 2D nickel-based ***,we present a microwave shock method for the preparation of 2D porous NiCo_(2)O_(4)*** the transient on-off property of microwave pulses for precise heteroatom doping and 2D porous structural design,non-metal doping(boron,phosphorus,and sulfur)with distinct extranuclear electron disparities serves as straightforward examples for *** tuning of lattice parameter reveals the impact of covalent bond strength on NiCo_(2)O_(4)structural *** introduced defect levels induce unpaired d-electrons in transition metals,enhancing the adsorption of electron-donating amino groups in urea ***,Bode plots confirm the impact mechanism of rapid electron migration caused by reduced band gaps on UOR *** prepared phosphorus-doped 2D porous NiCo_(2)O_(4),with optimal electron configuration control,outperforms most reported *** controlled modification strategy advances understanding theoretical structure-activity mechanisms of high-performance 2D spinels in UOR.

关键词： 2D materials Spinel Microwave Electrocatalysis Urea oxidation reaction

来源：评论

学校读者我要写书评

暂无评论

Simultaneous Solar-driven Steam and Electricity Generation by Cost-effective,Easy Scale-up MnO 2-based Flexible Membranes

引用

Energy & Environmental materials 2023年第3期6卷 184-192页

作者： Jiaxin Ren Yang Ding Jiang Gong Jinping Qu Ran Niu Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationHubei Key Laboratory of Material Chemistry and Service FailureHubei Engineering Research Center for Biomaterials and Medical Protective MaterialsSemiconductor Chemistry CenterSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan 430074China National Engineering Research Center of Novel Equipment for Polymer Processing Key Laboratory of Polymer Processing EngineeringMinistry of EducationGuangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced ManufacturingSchool of Mechanical and Automotive EngineeringSouth China University of TechnologyGuangzhou 510641China

Harvesting solar energy in an effective manner for steam and electricity generation is a promising technique to simultaneously cope with the energy and water ***,the construction of efficient and easy scale-up photothermal materials for steam and electricity cogeneration remains ***,we report a facile and cost-effective strategy to prepare MnO_(2)-decorated cotton cloth(MCx).The wide adsorption spectrum and excellent photothermal conversion ability of the in situ-formed MnO_(2)nanoparticles make the MCx to be advanced photothermal ***,the hybrid device integrated with MCx as the photothermal layer and the thermoelectric(TE)module for electricity power conversion exhibits an extremely high evaporation rate of 2.24 kg m^(−2)h^(−1)under 1 kW m^(−2)irradiation,which is ranked among the most powerful solar *** importantly,during solar evaporation,the hybrid device produces an open-circuit voltage of 0.3 V and a power output of 1.6 W m^(−2)under 3 Sun irradiation,and outperforms most of the previously reported solar-driven electricity generation ***,the integrated device with synergistic solar-thermal utilization opens up a green way toward simultaneous solar vapor and electric power generation in remote and resource-constrained areas.

关键词： photothermal material solar desalination solar energy solar steam generator thermoelectrics

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：