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二氧化钒粉末的合成技术 李志友1,曹笃盟1,周科朝1 (1.中南大学,粉末冶金国家重点实验室,湖南,长沙,410083) 摘要:迄今为止VO2一共有6种晶型,包括VO2(A),MO2(B),MO2(C),VO2(M)和VO2(R)等.尽管目前发展了众多不同的技术方法制备VO2薄膜,但是很少有制备VO2超细粉末的简便方法.本文结合作者的研究工作,综述了二氧化钒粉末的合成技术,如:传统的固相方法,热解法,软化学方法,水热法,溶胶-凝胶法和激光诱导气相沉积法等,比较了各种技术的优缺点并提出了将来有关合成技术可能的研究方向. 关键词:二氧化钒粉末; 合成技术; 综述; vanadium dioxide powder; synthetic technology; review; [全文内容正在添加中] ......
Effect of Calcium on the Vanadium Extraction from High Calcium Type Stone Coal包申旭1,2,LIANG Liang1,张一敏1,2,HAN Shihua1,HU Yangjia11. College of Resources and Environmental Engineering, Wuhan University... by water and dilute acid separately after being roasted with different dosage of Na Cl. The water leaching rate of vanadium(WLRV) was low and only 26.8% of vanadium can be leached by water when 4% Na Cl......
热致变色二氧化钒薄膜的研究进展 程海峰1,郑文伟1,刘海韬1,刘东青1 (1.国防科技大学新型陶瓷纤维及其复合材料国防科技重点实验室,长沙,410073) 摘要:二氧化钒薄膜具有优异的热致变色特性,已成为功能材料领域研究的热点.结合二氧化钒的结构分析了其热致变色特性;综述了二氧化钒薄膜的制备方法,着重评述了溅射法,化学气相沉积法及溶胶-凝胶法等几种常用方法;阐述了二氧化钒薄膜在智能窗,新兴光子晶体,伪装隐身技术方面的应用前景;最后指出了其今后的研究与发展方向. 关键词:热致变色; 二氧化钒; 薄膜; 伪装隐身; thermochromic; vanadium dioxide; thin film; camouflage and stealth; [全文内容正在添加中] ......
Pressure leaching of converter vanadium slag with waste titanium dioxideGuo-Quan Zhang,Ting-An Zhang,Ying Zhang,Guo-Zhi Lv,Yan Liu,Zhuo-Lin LiuKey Laboratory of Ecological Utilization of Multi-Metal... vanadium slag with waste titanium dioxide without roasting was studied. Mineralogy analysis indicates that the converter vanadium slag contains mainly three mineral phases:magnetite, titanium magnetite......
Synergistic effect of microwave irradiation and CaF2 on vanadium leachingJing-peng Wang1,2,Yi-min Zhang1,2,3,Jing Huang1,2,3,Tao Liu1,2,31. School of Resource and Environmental Engineering,Wuhan University of Science and Technology2. Hubei Provincial Engineering Technology Research Center of High Efficient Cleaning Utilization for Shale Vanadium Resource摘 要:
related to depth of discharge of the V2O5 sample. The prepared 2D V2O5 sample has good rate performance and excellent electrochemical cycling stability. Key words: vanadium pentoxide; sol-gel method...-sheng. Research progress in lithium vanadium oxides as cathode materials[J]. Rare Metal Materials and Engineering, 2013, 42(5): 1096-1100. [7] 耿 明, 赵宏滨, 徐甲强. 锂离子电池用高性能五氧化二钒[J]. 硅酸盐学报, 2011, 39(7......
Non-isothermal kinetics of synthesizing vanadium nitride by one-step methodJiang Dong,Yue Yu,Zheng-Liang XueSchool of Materials and Metallurgy,Wuhan University of Science and Technology摘 要:Vanadium nitride was synthesized by one-step method using V2O5 and carbon black as raw materials in nitrogen atmosphere. The phases of different reaction products......
were analyzed in detail.(NH4)2SO4 and KHSO4 were used as fusing agents to transform compounds containing vanadium into soluble species. Mass ratio of (NH4)2SO4 to CS, mass ratio of KHSO4 to CS, and roasting temperature during the roasting process can significantly influence leaching rate of vanadium (LRV). With H2SO4 as leaching agent, 99.2%vanadium in CS can be leached out under the optimum......
转炉提钒渣对镁碳砖的侵蚀王广恩1,王雨1,谢兵1,李新生1,郭戌1,李晓军1(1.重庆市重庆大学材料科学与工程学院)摘 要:在转炉提钒温度下,通过把镁碳砖试样浸入不同V2O3,FeO,TiO2,MnO,MgO含量的转炉提钒渣中,研究转炉提钒渣中氧化物含量的变化对镁碳砖侵蚀行为的影响,得出转炉提钒渣中氧化物含量与镁碳砖侵蚀速率的关系;使用SEM-EDS观察并分析侵蚀后镁碳砖的微观结构及物相组成,发现被C基质还原出来的金属铁颗粒;并基于试验结果对镁碳砖的损毁进行了讨论.关键词:转炉; 镁碳砖; 侵蚀;......
, the synthesized MgNH4PO4/MgHPO4 compound exhibited well doping effect. Key words: lithium vanadium phosphate; Mg-doping; cathode materials; carbothermic reduction 1 Introduction Lithium-ion...], and this improves the electronic conductivity in the lithium vanadium phosphate material. However, trace impurity was found in sample with x=0.2, which indicated that the upper limit for Mg doping is about x=0.2.......