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photocatalytic efficiency. Key words: BiVO4; hydrothermal method; Fe doping; photocatalysis 1 Introduction In past decades, semiconductor photocatalysis has received a great deal of attention due... for semiconductor oxide doping due to its half-filled electronic configuration [12]. However, to the best of our knowledge, there are few reports on the synthesis and properties of Fe-doped BiVO4 [13......
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用于分析热处理后Fe纳米薄膜的微观结构. 2 结果与讨论 在纳米薄膜的制备过程中, 原子(离子)的沉积角度直接影响薄膜的颗粒大小, 形状和分布状态等相关的微观结构. 因此本文作者对不同角度沉积的Fe纳米薄膜的微观结构进行了原子力显微分析. 图2所示为不同沉积角度下获得的厚度为5nm的Fe纳米薄膜的结构. 从图2中可看出, 当离子沉积角为90°时, 纳米铁薄膜为高低起伏的较大颗粒团簇... Particles statistical analysis results of Fe nano-films deposited by different angles 由此可见, 在MEVVA磁过滤等离子沉积制备金属铁纳米薄膜的过程中, 不同离子束沉积角度对厚度仅为几个纳米的薄膜结构具有很大的影响. 这种对微观结构的影响主要源于不同沉积角度引起的原子扩......
-doped (5,5) CNTs. The computation results of adsorption energy, energy band structure, and charge distribution of the pristine and Fe-doped (5,5) CNTs reveal that doping Fe atoms increases adsorption... to a chemical adsorption between Al and CNTs instead of a physical one. Fe doping could be beneficial to improving electrical contact behavior of CNT-reinforced Al matrix composites. Key words: carbon......
结合能(E=711.5 eV)可知,腐蚀产物膜中Fe元素以水合氧化铁FeO·OH的形式存在.CuNi10FeMn1合金在海水冲刷腐蚀初期,由于合金存在成分偏析,不同部位存在成分浓度差异,在局部位置形成微电池.在微电池阳极上,Cu,Ni,Fe等逐渐溶解形成阳离子,进一步发生氧化,水解等反应形成氧化物膜附着在合金表面,对氯离子,氧等腐蚀介质接触合金表面具有阻碍作用,阻碍了合金进一步腐蚀[6],主要化学...; (6) 在海水冲刷腐蚀条件下,添加Fe元素能使CuNi10FeMn1合金表面形成的Cu2O膜上附着一层致密的水合氧化铁膜[6].一方面能对氯离子,氧等腐蚀介质接触合金表面起阻......
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.ysxb.1004.0609.2020-39647 FANG Jun-xiao, CHEN Qing-jun, GAO Ji-wen, et al. Control of thermal conductivity of Ni-Diamond/Al composite by doping Fe-based amorphous alloy[J]. The Chinese Journal of Nonferrous Metals... of Ni-Diamond/Al composite by doping Fe-based amorphous alloy FANG Jun-xiao1, CHEN Qing-jun1, GAO Ji-wen2, CUI Xia1, PENG Xin-yuan1 (1. School of Materials Science and Engineering, Nanchang Hangkong......
低m(Cr)/m(Fe)铬铁矿除铁工艺的实验研究赵青1,2,张波1,刘承军1,姜茂发11. 东北大学多金属共生矿生态化冶金教育部重点实验室2. bo Akademi University Thermal and Flow Engineering Laboratory摘 要:以南非铬铁矿为对象,在热力学分析的基础上,采用碳热还原法开展了低m(Cr)/m(Fe)铬铁矿除铁工艺的实验研究.结果表明:实验中铬铁矿选择性除铁的适宜温度为1 100℃左右,符合热力学计算结果.低于此温度时还原出的富铁相与基体分离不彻底,难以结瘤析出;高于此温度时尖晶石相中的铬元素还原严重,影响铬的回收率.在1 100℃还原0.5 h并经酸浸处理后,铬铁矿可由化工级提升至冶金级,在相同温度下还原2 h后,m(Cr)/m(Fe)可由......
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