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Carbonitride MXene Ti_(3)CN(OH)_(x)@MoS_(2)hybrids as efficient electrocatalyst for enhanced hydrogen evolution

Nano Research 2023年第4期16卷 4656-4663页

作者： Jizhou Jiang Fangyi Li Saishuai Bai Yongjing Wang Kun Xiang Haitao Wang Jing Zou Jyh-Ping Hsu School of Environmental Ecology and Biological Engineering School of Chemistry and Environmental EngineeringKey Laboratory of Green Chemical Engineering Process of Ministry of EducationEngineering Research Center of Phosphorus Resources Development and Utilization of Ministry of EducationNovel Catalytic Materials of Hubei Engineering Research CenterWuhan Institute of TechnologyWuhan 430205China Department of Chemical Engineering “National Taiwan University”Taipei 10617

Renewable energy powered electrocatalytic water splitting is a promising strategy for hydrogen generation,and the design and development of high-efficiency and earth-abundant electrocatalysts for hydrogen evolution reaction(HER)are highly ***,MoS2 nanoflowers decorated two-dimensional carbonitride-based MXene Ti3CN(OH)x hybrids have been constructed by etching and post-hydrothermal *** electrochemical performance of the as-obtained Ti_(3)CN(OH)_(x)@MoS_(2)hybrids having a quasi core-shell structure is fascinating:An overpotential of 120 mV and a Tafel slope of 64 mV∙dec^(−1)can be delivered at a current density of 10 mA∙cm^(−2).And after 3,000 cyclic voltammetry cycles,it can be seen that there is no apparent *** the experimental results and density functional theory(DFT)calculations indicate that the synergetic effects between Ti_(3)CN(OH)x and MoS_(2)are responsible for the robust electrochemical HER *** electrons of-OH group in Ti_(3)CN(OH)x are transferred to MoS_(2),making the adsorption energy of the composite for H almost *** metallic Ti_(3)CN(OH)x is also beneficial to the fast charge transfer *** construction of MXene-based hybrids with optimal electronic structure and unique morphology tailored to the applications can be further used in other promising energy storage and conversion devices.

关键词： Ti_(3)CN(OH)x MoS_(2) hydrogen evolution reaction density functional theory(DFT)calculations

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Settling and spreading behaviour of particle clusters in quiescent liquids in confined vessels

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Particuology 2023年第12期83卷 91-100页

作者： Sayan Pal Amol A.Kulkarni Chemical Engineering&Process Development Division CSIR-National Chemical LaboratoryPune411008India Academy of Scientific and Innovative Research(AcSIR) Ghaziabad 201002India University College London Torrington PlaceLondonWC1E 7JEUK

Here we report experiments on particle cluster settling at high Reynolds number in quiescent liquid contained in a *** particles were observed to spread at the vessel bottom surface in a near-circular annular shape after settling irrespective of the shape of the vessel cross-section and particle shape,size,and *** of different parameters such as mass,type and aspect ratio of the particles,height,and viscosity of liquid was investigated on spreading *** of the hemispherical bottom cap of the cluster that bounces upon hitting the vessel bottom surface was found to be responsible for the final circular annular shape of the settled *** leakage from the cluster was seen in the form of a *** the liquid having viscosity beyond 100 cP,cluster breakage was observed that resulted in hindered settling and asymmetric shapes of finally settled *** observations are useful to understand the overall area over which settling and spreading of such clusters can be observed.

关键词： Particle cluster Temporal evolution Settling Spreading

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Direct Sputtered Copper Seed Layer Formation on Low Dielectric Resin to Reduce Transmission Loss

Direct Sputtered Copper Seed Layer Formation on Low Dielectr...

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2024 International 3D Systems Integration Conference, 3DIC 2024

作者： Shimizu, Akihiro Fukada, Kazuhiro Endo, Shinichi Abe, Mitsuru Matsui, Akiko Technology & Engineering Department 1 Photon Process Division Ushio Inc. Hyogo Himeji Japan Research & Development Center Research and Development Department Shibaura Machine Co. Ltd. Kanagawa Zama Japan Photon Process Division Photon Process GBU Ushio Inc. Osaka Osaka Japan Assembly Solution Business Unit Assembly Technology Division NTT Devices Cross Technologies Corporation Kanagawa Kawasaki Japan

ISBN: (纸本)9798331516505

We developed a method to form a copper seed layer directly on resins with excellent dielectric properties using sputtering (referred to as the direct sputtering method). One of the key challenges to implementing 6G wireless communication systems that use millimeter waves is minimizing high-frequency transmission losses, as the transmission loss is affected by the dielectric (resin substrate) and the conductor (copper wiring) used to fabricate the transmission line. We compared our direct sputtering method for fabricating transmission circuits with the electroless copper plating method by evaluating the characteristics of their high-frequency transmission up to 100 GHz. Our direct sputtering method has several advantages over the electroless copper plating method, including a streamlined fabrication process for the transmission circuit. The direct sputtering method reduces the usage of chemicals and the high-frequency transmission loss in the transmission circuit. Thus, our direct sputtering method is beneficial to the fabrication of transmission circuits for 6G wireless communications. © 2024 IEEE.

关键词： Copper plating

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Detection of onset of agglomeration in a bubbling fluidized bed biomass combustor using reactive Eulerian computational fluid dynamics

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Particuology 2024年第7期90卷 504-515页

作者： Abdullah Tasleem Atta Ullah Fei Li Qun Yi William Nimmo Syed Sheraz Daood Department of Chemical Engineering Pakistan Institute of Engineering and Applied Sciences(PIEAS)Lehtrar RoadP.O.Nilore45650IslamabadPakistan Institute of Process Engineering Chinese Academy of SciencesBeijing100190China School of Chemical Engineering and Pharmacy Wuhan Institute of TechnologyWuhan430205China Energy Engineering Group Energy 2050Department of Mechanical EngineeringUniversity of SheffieldSheffieldS37RDUnited Kingdom Institute of Energy and Environmental Engineering Faculty of ElectricalEnergy&Environmental EngineeringUniversity of the PunjabQuaid-e-Azam CampusLahorePakistan Energy Engineering Research and Development Centre Faculty of ElectricalEnergy&Environmental EngineeringUniversity of the PunjabQuaid-e-Azam CampusLahorePakistan

The choice of a type of combustion technology to be used for heat or power generation depends on economic,technical,operational and fuel availability *** benefits associated with the evolving market driven by the fluidised bed combustion(FBC)technology cannot be overlooked especially when gauged at 65 GWth of worldwide installed capacity alongside added benefits of handling fuel variation,low pollutant emissions and high combustion *** or biomass waste will continue to have a vital role to play in the future FBC technology-based power *** often contains high levels of inorganic species that can form sticky agglomerates posing a significant risk to boiler operation resulting in unscheduled *** added complexity of the behaviour of the fuel and bed material mix highlights the requirement for simulation models to identify agglomeration to help improve the overall performance and reliability of FBC *** resolve this problem,this research devised a simulation strategy for the detection of agglomeration using the Eulerian–Eulerian *** developed modelling strategy is validated with the experimental data available in literature for two-dimensional simplified geometry of a pilot-scale fluidised bed *** model results were found promising and robust to predict bed defluidisation times and other parameters consistent with the experimental data.

关键词： Fluidized bed combustion Eulerian Models Biomass Agglomeration Defluidisation

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Formulation of a Master Recipe: A Capability Aligning Approach for Resource Allocation 28

Formulation of a Master Recipe: A Capability Aligning Approa...

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28th IEEE International Conference on Emerging Technologies and Factory Automation, ETFA 2023

作者： Winter, Michael Klausmann, Tobias Shagufta Miny, Torben Heppner, Sebastian Kleinert, Tobias RWTH Aachen University Information and Automation Systems for Process and Material Technology Aachen Germany Lenze SE Research & Development - Systems Engineering Aerzen Germany

ISBN: (纸本)9798350339918

The contribution addresses the challenge of transforming a general recipe, which lacks knowledge about specific production resources, into a plant-specific master recipe in the process industry. The authors propose an approach using the concept of capabilities in manufacturing, enabled by an ontology and the Asset Administration Shell. The approach aligns required and offered capabilities at different description levels to allocate equipment to process elements and generate a master recipe in BatchML. The validation of the approach is accompanied by a procedure logic for a modular plant and discusses open challenges. In conclusion, the provided approach offers a methodical and less experience-dependent derivation of a master recipe for a manufacturing process. © 2023 IEEE.

关键词： Ontology

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Self-healing of active site in Co(OH)_(2)/MXene electrocatalysts for hydrazine oxidation

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Journal of Materials Science & Technology 2024年第36期203卷 108-117页

作者： Kun Xiang Yongjing Wang Zechao Zhuang Jing Zou Neng Li Dingsheng Wang Tianyou Zhai Jizhou Jiang School of Environmental Ecology and Biological Engineering School of Chemistry and Environmental EngineeringKey Laboratory of Green Chemical Engineering Process of Ministry of EducationEngineering Research Center of Phosphorus Resources Development and Utilization of Ministry of EducationNovel Catalytic Materials of Hubei Engineering Research CenterWuhan Institute of TechnologyWuhan 430205China Department of Chemistry Tsinghua UniversityBeijing 100084China State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070China State Key Laboratory of Material Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China

The development of efficient hydrazine oxidation reaction(HzOR)catalysts is important for the construc-tion of remarkable energy storage and conversion ***,after a period of electrochemical reaction,the active site of the catalyst will be irreversibly reduced or inactivated,and how to recover the active site is a major ***,we report 2D Co(OH)_(2)/Ti_(3)C_(2)(OH)_(x)MXene composites with rapid re-construction and self-healing behaviors as efficient and stable electrocatalysts during HzOR *** experimental and theoretical results indicate that the introduction of Ti_(3)C_(2)(OH)_(x)MXene can effectively reduce the dehydrogenation barrier of Co(OH)_(2),from 0.584 eV to 0.481 eV to form the real catalytic active center Co(OH)***,Co(OH)O/Ti_(3)C_(2)(OH)_(x)MXene composites with metal-like conductiv-ity not only present spontaneous adsorption capacity of N_(2)H_(4),but also can modulated rate-determining step of dehydrogenation of∗N_(2)H_(4)to∗N_(2)H_(3)(0.54 eV)compared with Co(OH)***,the electrophilic oxygen of Co(OH)O/Ti_(3)C_(2)(OH)_(x)can spontaneously obtain electrons and protons from N_(2)H_(4),achieving the oxidation of N_(2)H_(4)while reducing Co(OH)O to Co(OH)_(2),thus completing the self-healing of the efficient catalyst.

关键词： Hydrazine oxidation Self-healing Reconstruction Co(OH)_(2)/MXene Electrocatalysis

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Porous 3D carbon-based materials:An emerging platform for efficient hydrogen production

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Nano Research 2023年第1期16卷 127-145页

作者： Fangyi Li Jizhou Jiang Jiamei Wang Jing Zou Wei Sun Haitao Wang Kun Xiang Pingxiu Wu Jyh-Ping Hsu School of Environmental Ecology and Biological Engineering School of Chemistry and Environmental EngineeringKey Laboratory of Green Chemical Engineering Process of Ministry of EducationEngineering Research Center of Phosphorus Resources Development and Utilization of Ministry of EducationWuhan Institute of TechnologyWuhan 430205China Semiconductor Electronic Special Gas of Hubei Engineering Research Center Jingzhou 434000China Department of Chemical Engineering “National Taiwan University”Taipei 10617

Due to their unique properties and uninterrupted breakthrough in a myriad of clean energy-related applications,carbon-based materials have received great ***,the low selectivity and poor conductivity are two primary difficulties of traditional carbon-based materials(zero-dimensional(0D)/one-dimensional(1D)/two-dimensional(2D)),enerating inefficient hydrogen production and impeding the future commercialization of carbon-based *** improve hydrogen production,attempts are made to enlarge the surface area of porous three-dimensional(3D)carbon-based materials,achieve uniform interconnected porous channels,and enhance their stability,especially under extreme *** this review,the structural advantages and performance improvements of porous carbon nanotubes(CNTs),g-C_(3)N_(4),covalent organic frameworks(COFs),metal-organic frameworks(MOFs),MXenes,and biomass-derived carbon-based materials are firstly summarized,followed by discussing the mechanisms involved and assessing the performance of the main hydrogen production *** include,for example,photo/electrocatalytic hydrogen production,release from methanolysis of sodium borohydride,methane decomposition,and *** role that the active sites of porous carbon-based materials play in promoting charge transport,and enhancing electrical conductivity and stability,in a hydrogen production process is *** current challenges and future directions are also discussed to provide guidelines for the development of next-generation high-efficiency hydrogen 3D porous carbon-based materials prospected.

关键词： porous three-dimensional(3D)carbon-based materials hydrogen production advanced synthesis

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Single-atom catalysis for organic reactions

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Chinese Chemical Letters 2023年第6期34卷 121-129页

作者： Hanyu Hu Jiangbo Xi Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry Key Laboratory of Green Chemical Engineering Process of Ministry of EducationEngineering Research Center of Phosphorus Resources Development and Utilization of Ministry of EducationHubei Key Laboratory of Novel Reactor and Green Chemical TechnologySchool of Chemistry and Environmental EngineeringWuhan Institute of TechnologyWuhan 430205China

Metal-based catalysis,including homogeneous and heterogeneous catalysis,plays a significant role in the modern chemical *** catalysis is widely used due to the high efficiency,easy catalyst separation and ***,the metal-utilization efficiency for conventional heterogeneous catalysts needs further improvement compared to homogeneous *** tackle this,the pursing of heterogenizing homogeneous catalysts has always been attractive but *** a recently emerging class of catalytic material,single-atom catalysts(SACs)are expected to bridge homogeneous and heterogeneous catalytic process in organic reactions and have arguably become the most active new frontier in catalysis *** this review,a brief introduction and development history of single-atom catalysis and SACs involved organic reactions are *** addition,recent advances in SACs and their practical applications in organic reactions such as oxidation,reduction,addition,coupling reaction,and other organic reactions are thoroughly *** understand structure-property relationships of single-atom catalysis in organic reactions,active sites or coordination structure,metal atom-utilization efficiency(e.g.,turnover frequency,TOF calculated based on active metal)and catalytic performance(e.g.,conversion and selectivity)of SACs are comprehensively ***,the application limitations,development trends,future challenges and perspective of SAC for organic reaction are discussed.

关键词： Single-atom catalysis Active site Metal utilization Organic reaction Catalytic performance

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Identifying the dynamic behaviors in complete reconstruction of Co-based complex precatalysts during electrocatalytic oxygen evolution

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Journal of Energy Chemistry 2025年第1期100卷 226-233页

作者： Jingfang Zhang Danyang Wu Linke Cai Youluan Lu Fanpeng Cheng Lijuan Shi Qun Yi Yao Liu Yi Huang Key Laboratory of Green Chemical Engineering Process of Ministry of Education Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of EducationHubei Key Laboratory of Novel Reactor and Green Chemical TechnologySchool of Chemical Engineering&PharmacyWuhan Institute of TechnologyWuhan 430205HubeiChina Key Laboratory of Pesticide&Chemical Biology of Ministry of Education Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of EducationCollege of ChemistryCentral China Normal UniversityWuhan 430079HubeiChina College of Materials Science and Engineering Fuzhou UniversityFuzhou 350108FujianChina

Transition metal-based nanomaterials have emerged as promising electrocatalysts for oxygen evolution reaction(OER).Considerable research efforts have shown that self-reconstruction occurs on these nanomaterials under operating conditions of OER ***,most of them undergo incomplete reconstruction with limited thickness of reconstruction layer,leading to low component utilization and arduous exploration of real catalytic ***,we identify the dynamic behaviors in complete reconstruction of Co-based complexes during *** hollow phytic acid(PA)cross-linked CoFe-based complex nanoboxes with porous nanowalls are designed because of their good electrolyte penetration and mass transport ability,in favor of the fast and complete reconstruction.A series of experiment characterizations demonstrate that the reconstruction process includes the fast substitution of PA by OH-to form Co(Fe)(OH)xand subsequent potential-driven oxidation to Co(Fe)*** obtained CoFeOOH delivers a low overpotential of 290 mV at a current density of 10 mA cm^(-2)and a long-term *** experiment results together with theory calculations reveal that the Fe incorporation can result in the electron rearrangement of reconstructed CoFeOOH and optimization of their electronic structure,accounting for the enhanced OER *** work provides new insights into complete reconstruction of metal-based complexes during OER and offers guidelines for rational design of high-performance electrocatalysts.

关键词： Complete reconstruction Co-based complex Precatalysts Oxygen evolution reaction

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Studies on polyoxymethylene dimethyl ethers production from dimethoxymethane and 1,3,5-trioxane over SO_(4)^(2-)/ZrO_(2)-TiO_(2)

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Chinese Journal of Chemical engineering 2023年第9期61卷 24-36页

作者： Haoyu Yao Jiangcheng Li Jiangyan Li Xiangfeng Liang Gang Wang Haiyan Luo Environmental Resources Green Chemical Separation GroupQingdao Institute of BioenergyBioprocess TechnologyChinese Academy of SciencesQingdao 266101China Beijing Insight Chemistry Co. LtdBeijing 101121China Merck Sharp&Dohme Research and Development(China)Co. LtdBeijing 100101China Institute for Catalysis Hokkaido UniversityN-21W-10Sapporo 001-0021Japan CAS Key Laboratory of Green Process and Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China

Polyoxymethylene dimethyl ethers(OMEs)with physical properties similar to those of diesel has received significant attention as green additives for soot emission ***,series of SO_(4)^(2-)/ZrO_(2)-TiO_(2)catalysts were developed for OMEs production from dimethoxymethane(DMM)and1,3,5-trioxane through sequential formaldehyde monomer insertion into C-O bond of *** Lewis but Bronsted acid sites were identified to be active for the decomposition of 1,3,5-trioxane into formaldehyde unit,however,both of them are effective for the chain propagation of DMM via formaldehyde unit insertion into C-O *** studies indicated each chain growth step exhibited the same parameters and activation barrier on corresponding Bronsted and Lewis acid sites due to the same reaction mechanism and very similar chemical structure of ***,the catalytic stability investigation suggested the deactivation behavior was derived from the carbon deposition,and the decay factor could be exponentially correlated with the amount of coke accumulation.

关键词： Polyoxymethylene dimethylethers SO_(4)^(2-)/ZrO_(2)-TiO_(2) Chain propagation Kinetics Deactivation behavior

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