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Key technology and application of AB_(2) hydrogen storage alloy in fuel cell hydrogen supply system

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Materials Reports(Energy) 2024年第1期4卷 113-122页

作者： Ming Yao Jianguang Yuan Bao Zhang Youhua Yan shaoxiong zhou Ying Wu School of Energy Power and Machinery Engineering North China Electric Power UniversityNo.2 BeinongluChangping DistrictBeijing 102206China Institute of Energy Power Innovation North China Electric Power UniversityNo.2 BeinongluChangping DistrictBeijing 102206China Jiangsu JITRI Advanced Energy&Materials Research Institute Co. LtdNo.5 ChongyinanluXinbei DistrictChangzhou 213000China

At present,there is limited research on the application of fuel cell power generation system technology using solid hydrogen storage materials,especially in hydrogen-assisted *** the disadvantages of low hydrogen storage capacity and poor kinetics of hydrogen storage materials,our primary focus is to achieve smooth hydrogen ab-/desorption over a wide temperature range to meet the requirements of fuel cells and their integrated power generation *** this paper,the Ti_(0.9)Zr_(0.1)Mn_(1.45)V_(0.4)Fe_(0.15) hydrogen storage alloy was successfully prepared by arc *** maximum hydrogen storage capacity reaches 1.89 wt% at 318 *** alloy has the capability to absorb 90% of hydrogen storage capacity within 50 s at 7 MPa and release 90% of hydrogen within 220 *** Multiphysics 6.0 software was used to simulate the hydrogen ab-/desorption processes of the *** flow rate of cooling water during hydrogen absorption varied in a gradient of(0.02 t x)m s^(-1)(x=0,0.02,0.04,0.06,0.08,0.1,0.12).Cooling water flow rate is positively correlated with the hydrogen absorption rate but negatively correlated with the *** the cooling rate is 0.06 m s^(-1),both simulation and experimentation have shown that the hydrogen storage tank is capable of steady hydrogen desorption for over 6 h at a flow rate of 2 L min^(-1).Based on the above conclusions,we have successfully developed a hydrogen-assisted two-wheeler with a range of 80 km and achieved regional demonstration operations in Changzhou and *** paper highlights the achievements of our team in the technological development of fuel cell power generation systems using solid hydrogen storage materials as hydrogen storage carriers and their application in twowheelers in recent years.

关键词： AB_(2)hydrogen storage alloy Hydrogen storage tanks Simulation Hydrogen-electric coupling system Power-assisted two-wheelers

Development of Rapidly Quenched Soft Magnetic Materials in China

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Journal of Iron and Steel Research International 1999年第2期6卷 44-50页

作者： zhou shaoxiong Central Iron & Steel Research Institute

Thediscovery ofthefirstFe-based ferrom agneticam orphousalloy in 1966 had m ade an im pacton conventionalm agnetic m aterialsbecause ofitsuniqueproperties. Since then, a num berof am orphousm agneticm aterialshavebeen successfully developed and used in aw ide variety ofapplica- tions. Abriefreview ofR& Dactivitieson am orphoussoftm agneticm aterialsin Chinaisgiven from the beginning to the presentin a som ew hatchronologicalorder, followed by a briefintroduction to their applicationson electric and electronicindustries. An analysis and aprospectofChinesem arket ofsuch am orphous m aterials are also presented.

关键词： m agneticm aterials am orphousalloy rapid quenching

The Nanoscale Density Gradient as a Structural Stabilizer for Glass Formation

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Engineering 2023年第10期29卷 120-129页

作者： shaoxiong zhou Bangshao Dong Yanguo Wang Jingyu Qin Weihua Wang China Iron and Steel Research Institute Group Beijing 100081China Institute of Advanced Materials North China Electric Power UniversityBeijing 102206China Jiangsu JITRI Advanced Energy and Materials Research Institute Changzhou 213032China Beijing National Laboratory of Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China Key Laboratory for Liquid–Solid Structural Evolution and Processing of Materials(Ministry of Education) Shandong UniversityJinan 250061China

The rapid cooling of a metallic liquid(ML)results in short-range order(SRO)among the atomic arrangements and a disordered structure in the resulting metallic glass(MG).These phenomena cause various possible features in the microscopic structure of the MG,presenting a puzzle about the nature of the MGs’microscopic structure beyond *** this study,the nanoscale density gradient(NDG)originating from a sequential arrangement of clusters with different atomic packing densities(APDs),representing the medium-range structural heterogeneity in Zr_(60)Cu_(30)Al_(10)MG,was characterized using electron tomography(ET)combined with image simulations based on structure *** coarse polyhedrons with distinct facets identified in the three-dimensional images coincide with icosahedron-like clusters and represent the spatial positions of clusters with high *** of the different clusters according to descending APD order in the glass-forming process are responsible for the NDG that stabilizes both the supercooled ML and the amorphous states and acts as a hidden rule in the transition from ML to MG.

关键词： Rapid cooling Amorphous solid Density gradient Electron tomography Atomic clusters

Hydrogen absorption-desorption characteristic of (Ti0.85Zr0.15)1.1Cr1-xMoxMn based alloys with C14 Laves phase

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Progress in Natural Science:Materials International 2022年第2期32卷 143-149页

作者： Youhua Yan Zhongyu Li Ying Wu shaoxiong zhou Jiangsu JITRI Advanced Energy & Materials Research Institute Co. Ltd. Advanced Materials Research Institute North China Electric Power University

The microstructure and hydrogen absorption-desorption characteristic of(Ti0.85Zr0.15)1.1Cr1-xMoxMn(x = 0.05,0.1,0.15,0.2 at.%) alloys were *** results showed that the corresponding alloys were determined as a single phase of C14-type Laves *** the increase of Mo content,the maximum and reversible hydrogen absorption capacity decreased,the slope factor Hf *** the studied alloys,(Ti0.85Zr0.15)1.1Cr0.95Mo0.05Mn had the best overall properties for practical application of hydrogen storage *** maximum and reversible hydrogen storage capacity were 1.76 wt% and 1.09 wt%,the slope factor Hfwas 0.51,and its dissociation enthalpy(ΔHd) and entropy change(ΔSd) were 23.1 kJ mol-1H2,93.8 J K-1mol-1 H2at 303 K,*** studying the dissociation pressures of the synthesized metal hydrides,it was found that Mo had a special effect on the dissociation pressure of Ti-Zr-Cr-Mo-Mn *** the four alloys,(Ti0.85Zr0.15)1.1Cr0.95Mo0.05Mn alloy had the largest hydrogen absorption capacity and the fastest hydrogen desorption rate,which can meet the commercialization demand of hydrogen fuel cell hydrogen supply system.

关键词： Metal hydrides Ti–Zr–Cr–Mo–Mn based Alloys Laves phase Hydrogen storage properties

Effect of glass removal on the GMI effect of Co_(71.8)Fe_(4.9)Nb_(0.8)Si_(7.5)B_(15) amorphous glass-covered wires

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Rare Metals 2006年第z1期25卷 633-636页

作者： CHEN Zheng BA Shan LI Deren LU Zhichao zhou shaoxiong Central Iron & Steel Research Institute Nanomaterials Engineering and Research Center Beijing 100081 China Research and Development Center Advanced Technology & Materials Co. Ltd. Beijing 100081 China Beijing Institute of Technology School of Science Beijing 100081 China Central Iron & Steel Research Institute Nanomaterials Engineering and Research Center Beijing 100081 China Research and Development Center Advanced Technology & Materials Co. Ltd. Beijing 100081 China Central Iron & Steel Research Institute Nanomaterials Engineering and Research Center Beijing 100081 China Research and Development Center Advanced Technology & Materials Co. Ltd. Beijing 100081 China

During the past several years, giant magneto-impedance effect (GMI) in amorphous wires has generated growing interest in the science community because of their applications in sensors. The giant magneto-impedance effect in Co71.8Fe4.9Nb0.8Si7.5B15 amorphous glass-covered wires (AGCW) consists of strong changes in the high frequency impedance with a small DC magnetic field. When f=1 MHz, there is no GMI effect due to the fact that the magnetic penetration depth is higher than their radius. As the frequency increases, the GMI effect becomes important in both the glass-covered wire and the wire after glass removal. Field dependence of the impedance has a similar behaviour to the AGCW ones, when a tensile stress is applied to the wire without glass cover.

关键词： giant magneto-impedance amorphous wires frequency

The influence of substrate and atmosphere on the properties of FeSiB(Cu,Nb) alloy melts

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Science China(Technological Sciences) 2016年第12期59卷 1892-1898页

作者： GAO Hui DONG BangShao ZHONG Ju LI ZongZhen XU Min zhou shaoxiong Advanced Technology & Materials Co. Ltd.Beijing Key Laboratory of Energy NanomaterialsCentral Iron & Steel Research Institute Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education) School of Materials Science and EngineeringNortheastern University

The surface tensions and contact angles of Fe_(78)Si_9B_(13) and Fe_(73.5)Cu_1Nb_3Si_(13.5)B_9 alloy melts were studied as a function of temperature in various atmospheres(vacuum, Ar and N_2 gas) and on different substrates(Si C, Al_2O_3 and BN). It is indicated that Si_3N_4, NbN, Fe_2 Al B and B_(13)C_2 are generated as new phases at the interface between the melt and substrate, and reactive wetting behaviour exists during the heating process. The surface tensions of two alloy melts on BN substrate both firstly decrease and then increase along with increasing temperature, leading to V-shaped surface tension versus temperature, which results from atomic diffusion effects in the surface layer during the oxidation of BN and formation of C-rich layer. Comparably, the surface tensions on Al_2O_3 and Si C substrates decrease with increasing temperature throughout the entire temperature range. Among three substrates, BN exhibits the mildest wetting behaviour. The vacuum environment has the strongest protective effect on melt stability among the tested atmospheres. These findings enrich our knowledge about the effects of the substrate and atmosphere on Fe-based alloy melts at a high temperature, and provide theoretical reference for designing jet nozzles in melt-spinning techniques.

关键词： Fe-based alloy melt surface tension contact angle reactive wetting behaviour surface composition

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常规稻恢复系兼用型优质稻新品种选育及应用

福建稻麦科技 2024年第2期42卷 1-4页

作者：余克勇周少雄冯天徐明豪周少川广东省农业科学院水稻研究所广东广州510640 深圳市金谷美香实业有限公司广东深圳518000

以黄华占、黄广华占1号、美香占2号等优质核心种质及其衍生系统为主体,应用核心种质育种理论育成的常恢兼用型优质稻新品种黄华丝苗、美香占3号,具有稳产、优质、边矮秆多穗、耐肥抗倒、后期落色好、配合力强等特点。介绍了黄华丝苗、... 详细信息

以黄华占、黄广华占1号、美香占2号等优质核心种质及其衍生系统为主体,应用核心种质育种理论育成的常恢兼用型优质稻新品种黄华丝苗、美香占3号,具有稳产、优质、边矮秆多穗、耐肥抗倒、后期落色好、配合力强等特点。介绍了黄华丝苗、美香占3号的选育过程及栽培技术要点。

关键词：水稻核心种质优质稻选育栽培技术

Microstructure and optical properties of sprayed γ-CuI thin films for CuInS_2 solar cells

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Rare Metals 2011年第1期30卷 22-27页

作者： YAN Youhua zhou shaoxiong LU Zhichao LI Zhengbang Advanced Technology ＆ Materials Co.Ltd. China Iron ＆ Steel Research Institute GroupBeijing 100081China

γ-CuI thin films were prepared by a spraying method using acetonitrile as a solvent,CuI and iodine as *** influences of substrate temperature on the structure,topography,and optical properties of CuI films were *** electron microscope（SEM） photos revealed that the shape and grain size of CuI grains were related to substrate temperature.X-ray diffraction results showed that substrate temperature affected the crystalline quality of CuI *** the substrate temperature was 110°C,CuI thin films showed γ-phase zinkblende structure with（111） preferred *** dimension of the globular CuI crystallite was approximately 35 nm,the energy band gap was 2.97 eV,the maximum transmittance was 87.3% in the part of the visible region,and the open circuit voltage was close to 380 *** opened a route for a cadmium-free buffer layer for CuInS2 solar cells.

关键词： solar cells thin films spraying microstructure optical properties

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自动清洗机在PCB组件上的应用改进

印制电路信息 2024年第2期32卷 25-28页

作者：周少雄何燕春杨若涵夏鹏航空工业西安航空计算技术研究所陕西西安710068

印制电路板(PCB)组件清洗技术在电子产品生产加工领域中是不可或缺的。对自动清洗机的工作原理以及操作流程进行了介绍说明,研究解决了自动清洗机在实际生产应用中出现的一些问题,进一步提升了自动清洗机的实用性,在自动清洗技术方面具... 详细信息

印制电路板(PCB)组件清洗技术在电子产品生产加工领域中是不可或缺的。对自动清洗机的工作原理以及操作流程进行了介绍说明,研究解决了自动清洗机在实际生产应用中出现的一些问题,进一步提升了自动清洗机的实用性,在自动清洗技术方面具有重要的参考借鉴意义。

关键词：印制电路组件清洗技术工装自动感应控制器正交试验