Current efficiency improvement of Zn-Fe alloy electrodeposition by hydrogen inhibitor

来源 :中南工业大学学报(英文版) | 被引量 : 0次 | 上传用户:liongliong462
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
In order to inhibit hydrogen evolution and enhance current efficiency of Zn-Fe alloy eleetrodeposition from alkaline zincate solution,hydrogen inhibitors composed of the sulfur group elements were optimized on the basis of atom structures analysis.The effects of hydrogen inhibitor on the current efficiency of Zn-Fe alloy electroplating and their electrochemical behaviors were studied.The results indicate that hydrogen inhibitor can increase the current efficiency of Zn-Fe alloy electroplating evidently,from 63.28% without hydrogen inhibitor up to 83.54% with a hydrogen inhibitor at a volume fraction of 2.0%,while it has a minor influence on that of pure Zn plating,which maintains at 80%.The optimum volume fraction of hydrogen inhibitor is 2.0%.
其他文献
Knowledge discovery from data directly can hardly avoid the fact that it is biased towards the collected experimental data, whereas, expert systems are always b
A global asymptotic stability problem of cellular neural networks with delay is investigated.A new stability condition is presented based on the Lyapunov-Krasov
A new type of lead-based porous anode in zinc electrowinning was prepared by negative pressure infiltration.The anodie polarization potential and corrosion rate
The electroslag remelting (ESR) layer reinforced by TiC particles was obtained by electroslag remelting. The microstruc-ture and wear properties of the ESR laye
Hydrous ruthenium oxide was formed by a new process. The precursor was obtained by mixing the aqueous solutions of RuCl3·xH2O and NaHCO3. The addition of NaHCO
To improve the effect of destroying time-sensitive target (TST), a method of operational effectiveness evaluation is presented and some influential factors are
针对供应商管理过程中出现的剔除不合格品数据的情况,以统计理论为支撑,推导了正态分布截尾样本的特性.对截尾处理过的数据进行还原,给出原始数据的均值和标准差,重新计算过
The traditional HB-weighted time-delay estimation (TDE) method degenerates under the impulsive noise environment.Two new time-delay estimation methods are propo
The equivalent sample theory and its application in analysis of networked control system (NCS) are presented.After analyzing NCS’s scheduling in master-slave m
提出了联合决策矩阵的概念以及基于联合决策矩阵的两类决策系统规则获取算法.将条件属性等价矩阵和决策属性等价矩阵合并到一个矩阵中,大大减少了矩阵生成过程的比较次数,能