NIOBIUM

作品数：281被引量：577H指数：10
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Facile construction of Mxene-supported niobium hydride nanoparticles toward reversible hydrogen storage in magnesium borohydride
《Rare Metals》2024年第9期4387-4400,共14页Ao Xia Jia-Guang Zheng Qing-Bo Zhang Yu-Gang Shu Cheng-Guo Yan Liu-Ting Zhang Zhan-Liang Tao Li-Xin Chen 
financially supported by the National Natural Science Foundation of China(No.52201255);the Natural Science Foundation of Jiangsu Province(No.BK20210884);the Innovation and Entrepreneurship Program of Jiangsu Province(No.JSSCBS20211007)。
The facile construction of nanoscale NbH_(x)supported by Ti_(3)C_(2)(NbH_(x)@Ti_(3)C_(2))was achieved using facile ball milling strategy to improve the hydrogen desorption kinetics and reversibility of magnesium boroh...
关键词：Hydrogen storage Magnesium borohydride Catalysts Mxene 
Decomposition of Nb_(3)Si and mechanical-property improvement by adding appropriate amount of MgO in Nb-16Si-20Ti alloy
《Rare Metals》2023年第4期1306-1315,共10页De-Zhi Chen Qi Wang Rui-Run Chen Shu Wang Yan-Qing Su Heng-Zhi Fu 
financially supported by the National Natural Science Foundation of China(Nos.51825401 and 52004077)。
Five Nb-16Si-20Ti-xMgO alloys(x=0,0.1,0.5,1.0 and 3.0)were prepared via arc melting in this study,and the effect of MgO addition on their phase composition,microstructure evolution,and mechanical properties was examin...
关键词：Niobium silicon alloy Magnesium oxide Eutectic structure Fracture toughness 
A novel Mo_(8.7)Nb_(6.1)O_x@NCs egg-nest composite structure as superior anode material for lithium-ion storage被引量：2
《Rare Metals》2022年第8期2645-2654,共10页Shu-Ling Cheng Xiu-Ping Yin Samrat Sarkar Zhen-Wei Wang Qiu-An Huang Jiu-Jun Zhang Yu-Feng Zhao 
financially supported by the National Natural Science Foundation of China (Nos.22179077 and 51774251);Shanghai Science and Technology Commission’s "2020 Science and Technology Innovation Action Plan" (No. 20511104003);Natural Science Foundation in Shanghai (No. 21ZR1424200);Hebei Natural Science Foundation for Distinguished Young Scholars (No.B2017203313);the Scientific Research Foundation for the Returned Overseas Chinese Scholars (No. CG2014003002)
Anode materials of lithium-ion batteries(LIBs)endowed with high-rate performance and fast charging capability are crucial for future energy storage systems.Here,Mo_(8.7)Nb_(6.1)O_(x)@NCs(nitrogen-doped carbon nanotube...
关键词：Niobium molybdenum oxide Fast charging Anode material High-rate Lithium-ion batteries 
Synergistic effect of cobalt and niobium in Co_(3)-Nb-O_(x)on performance of selective catalytic reduction of NO with NH_(3)被引量：5
《Rare Metals》2022年第1期166-178,共13页Bo-Lin Zhang Li-Feng Deng Bo Liu Chun-Yun Luo Michael Liebau Shen-Gen Zhang Roger Glaser 
This work was financially supported by the National Key R&D Projects(No.2019YFC1907101);the National Natural Science Foundation of China(No.U2002212);the State Key Laboratory for Advanced Metals and Materials(No.2019Z-05);the Fundamental Research Funds for the Central Universities(Nos.FRFIDRY-20-005 and FRF-TP-20-097A1Z);the Postdoctor Research Foundation of Shunde Graduate School of University of Science and Technology Beijing(No.2020BH012).
Combining the redox properties of Co and the acid properties of Nb in a Co_(3)-Nb-O_(x)catalyst is shown to provide superior performance in the selective catalytic reduction of NO with NH_(3)(NH_(3)-SCR).Co_(3)O_(4)sh...
关键词：Co-Nb Selective catalytic reduction LOWTEMPERATURE Acid property Redox behavior 
A novel approach to extract Nb,Y and Ce from a niobium-bearing ore of low grade by roasting KHSO_(4)-H_(2)SO_(4) system被引量：1
《Rare Metals》2021年第7期1979-1986,共8页Wen-Cheng Gao Jian-Kang Wen Biao Wu He Shang Xue Liu 
China Postdoctoral Science Foundation(No.2014M560922)。
In this work,a novel approach of leaching valuable metals,such as niobium,yttrium and cerium,from a niobium-bearing ore of low grade by roasting KHSO_(4)-H_(2)SO_(4)system was experimentally studied.Through the work,t...
关键词：ROASTING Extraction NIOBIUM YTTRIUM CERIUM Low grade 
Cycling hydrogen desorption properties and microstructures of MgH_(2)-AlH_(3)-NbF_(5) hydrogen storage materials被引量：13
《Rare Metals》2021年第4期1003-1007,共5页Xiao-Sheng Liu Hai-Zhen Liu Ning Qiu Yan-Bing Zhang Guang-Yao Zhao Li Xu Zhi-Qiang Lan Jin Guo 
financially supported by the National Natural Science Foundation of China(Nos.51771171 and 51971199);the Natural Science Foundation of Guangxi Province(Nos.2019GXNSFBA185004 and 2018GXNSFAA281308);the Basic Ability Improvement Project for Young and Middle-Aged Teachers in Colleges and Universities in Guangxi(No.2019KY0021)。
Magnesium hydride(MgH_(2)) is a candidate material for hydrogen storage.MgH_(2)-AlH_(3) composite shows superior hydrogen desorption properties than pure MgH_(2).However,this composite still suffers from poor cycling ...
关键词：Hydrogen storage materials Magnesium hydride Aluminum hydride Niobium fluoride Cycling properties 
Formation mechanism of titanium and niobium carbides in hardfacing alloy被引量：3
《Rare Metals》2017年第8期640-644,共5页Ke Yang KèYang Ye-Feng Bao Yong-Feng Jiang 
financially supported by the National Natural Science Foundation of China(No.51101050);theFundamental Research Funds for the Central Universities(Nos.2013B18114 and 2015B22614);the Natural Science Foundation of Jiangsu Province of China(No.BK20141156)
The most effective carbide-forming elements titanium and niobium were added into hardfacing alloy.Formation and composition of carbides in the hardfacing alloy were investigated by means of optical microscope（OM）,sc...
关键词：TITANIUM NIOBIUM Hardfacing alloy Carbides MICROSTRUCTURE 
Sulfuric acid leaching of low-grade refractory tantalum–niobium and associated rare earths minerals in Panxi area of China被引量：6
《Rare Metals》2015年第3期202-206,共5页Biao Wu He Shang Jian-Kang Wen 
financially supported by the National Science & Technology Pillar Program(No.2012BAB10B00)
By mineral liberation analyzer （MLA） automated quantitative system, the niobium-tantalum ore in this study was classified as refractory mineral of low-grade which was mainly composed of fergusonite, polycrase, ilmen...
关键词：Niobium-tantalum Rare earth REFRACTORY LOW-GRADE ROASTING Sulfuric acid leaching 
Fabrication of multilayer Nb_2O_5 nanoporous film by anodization of niobium foils被引量：1
《Rare Metals》2015年第2期77-80,共4页Guang-Zhong Li Hui-Ping Tang Wen-Yan Zhang Gang Li Lan-Lan Yu Ya-Ning Li 
financially supported by the National Natural Science Foundation of China (Nos. 50902115 and 51104121)
Multilayer Nb2O5 nanoporous films were successfully synthesized on Nb surfaces by the control anodization process in ethylene glycol containing 4 vol% HF and 2 vol% H2O2 electrolyte. The nanoporous films are character...
关键词：Anodization MULTILAYER Nanoporous film Growth mechanism 
Extraction of niobium, yttrium, and cerium from a low-grade niobium-bearing ore by roasting(NH_4)_2SO_4-Na_2SO_4-H_2SO_4 system被引量：7
《Rare Metals》2014年第6期754-760,共7页Wen-Cheng Gao Jian-Kang Wen Biao Wu He Shang 
financially supported by the National 12th Five-Year Science and Technology Support Programs (Nos. 2012BAB10B00 and 2012BAB10B08)
A novel process of extracting niobium, yttrium,and cerium from a low-grade niobium-bearing ore by the roasting（NH4）2SO4-Na2SO4-H2SO4 system was experimentally studied. The influences of various factors,such as roast...
关键词：EXTRACTION NIOBIUM YTTRIUM CERIUM Lowgrade 
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