镀液pH值对Ni-Mo-C合金镀层析氢性能的影响
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摘要
通过电沉积法在纯铜表面制备Ni-Mo-C合金镀层,采用能谱仪(EDS)、扫描电镜(SEM)、线性伏安扫描法(LSV)和电化学阻抗谱(EIS)等方法研究了镀液pH值对Ni-Mo-C合金镀层元素组成、沉积速率、表面形貌及析氢性能的影响。结果表明:随着镀液pH值的增大,镀层中Ni、C的含量先减小后增大,Mo的含量先增大后减小;当镀液pH=4.5时,电沉积速率最大;能量因素和几何因素的优化均可增强合金镀层的析氢性能,能量因素对析氢性能的促进作用大于几何因素;当镀液pH=4.5时,镀层中Mo含量最大,吸附氢的脱吸附能力最强,析氢性能最好。
Ni-Mo-C alloy coating was prepared on pure copper by electroplating.Energy spectrum analysis( EDS),scanning electron microscopy( SEM),linear sweep voltammetry( LSV) and electrochemical impedance spectroscopy( EIS) were used to investigate the effect of bath pH value on the elemental composition,deposition rate,surface morphology and hydrogen evolution property of the Ni-Mo-C alloy coating.The results show that with the increasing of bath pH value,Ni and C contents in the coating decrease first and then increase,while Mo content increases first and then decreases.The deposition rate is the highest when the bath pH value is 4.5.The optimization of energy and geometric factors can enhance the hydrogen evolution performance of the alloy coating,and the promotion of energy factors on hydrogen evolution is greater than that of the geometric factors.When the bath pH value is 4.5,the Mo content in Ni-Mo-C alloy coating is the largest,the hydrogen desorption is the easiest,the Ni-Mo-C alloy coating exhibits the best hydrogen evolution property.
Ni-Mo-C alloy coating was prepared on pure copper by electroplating.Energy spectrum analysis( EDS),scanning electron microscopy( SEM),linear sweep voltammetry( LSV) and electrochemical impedance spectroscopy( EIS) were used to investigate the effect of bath pH value on the elemental composition,deposition rate,surface morphology and hydrogen evolution property of the Ni-Mo-C alloy coating.The results show that with the increasing of bath pH value,Ni and C contents in the coating decrease first and then increase,while Mo content increases first and then decreases.The deposition rate is the highest when the bath pH value is 4.5.The optimization of energy and geometric factors can enhance the hydrogen evolution performance of the alloy coating,and the promotion of energy factors on hydrogen evolution is greater than that of the geometric factors.When the bath pH value is 4.5,the Mo content in Ni-Mo-C alloy coating is the largest,the hydrogen desorption is the easiest,the Ni-Mo-C alloy coating exhibits the best hydrogen evolution property.
引文
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[2]Krit Ngamlerdpokin,Nisit Tantavichet.Electrodeposition of nickelcopper alloys to use sa a cathode for hydrogen evolution in an alkaline[J].International Journal of Hydrogen Energy,2014,39:2505-2515.
[3]汪广溪.氢能利用的发展现状及趋势[J].低碳世界,2017(29):295-296.Wang Guangxi.Development status and trend of hydrogen energy utilization[J].Low Carbon World,2017(29):295-296.
[4]Wang Lixin,Li Yao,Xia Meirong,et al.Ni nanoparticles supported on graphene layer:An excellent 3D electrode for hydrogen evolution reaction in alkaline solution[J].Journal of Power Sources,2017,347:220-228.
[5]张开悦,刘伟华,陈晖,等.碱性电解水析氢电极的研究进展[J].化工进展,2015,34(10):3680-3778.Zhang Kaiyue,Liu Weihua,Chen Hui,et al.Research progress in hydrogen electrode materials for alkaline water electrolysis[J].Chemical Industry and Engineering Progress,2015,34(10):3680-3778.
[6]马强,巴俊洲,蒋亚雄,等.镍合金用作碱性电解水析氢阴极的研究综述[J].舰船防化,2007(2):6-14.Ma Qiang,Ba Junzhou,Jiang Yaxiong,et al.Recent development of Nibase alloy as a cathode material for the production of hydrogen by alkaline water electrolysis[J].Chemical Defence on Ships,2007(2):6-14.
[7]Wu Yihui,He Hanwei.A novel Ni-S-W-C electrode for hydrogen evolution reaction in alkaline electrolyte[J].Material Letters,2017,209:532-534.
[8]Reza Karimi Shervedani,Ali Reza Madram.Electrocatalytic activities of nanocomposite Ni81P16C3 electrode for hydrogen evolution reaction in alkaline solution by electrochemical impedance spectroscopy[J].International Journal of Hydrogen Energy,2008,33:2468-2476.
[9]Reza Karimi Shervedani,Ali Reza Madram.Kinetics of hydrogen evolution reaction on nanocrystalline electrodeposited Ni62Fe35C3cathode in alkaline solution by electrochemical impedance spectroscopy[J].Electrochimica Acta,2007,53:426-433.
[10]Krzysztof Mech.Influence of organic ligands on electrodeposition and surface properties of nickel films[J].Surface and Coatings Technology,2017,315:232-239.
[11]Shaheen A Maniyar,Jameel G Jargar,Swastika N Das,et al.Alteration of chemical behavior of L-ascorbic acid in combination with nickel sulfate at different p H solutions in vitro[J].Asian Pacific Journal of Tropical Biomedicine,2012,2(3):220-222.
[12]彭元芳,赵国鹏,刘建平,等.Ni-α-Al2O3纳米复合电镀工艺条件的研究[J].电镀与涂饰,2003,22(5):7-12.Peng Yuanfang,Zhao Guopeng,Liu Jianping,et al.Study of Ni-α-Al2O3nano-composite plating process[J].Electroplating&Finishing,2003,22(5):7-12.
[13]张晓菲,胡瑞生,高官俊,等.两种络合剂对Ce-Sn-O复合氧化物结构与性能的影响[J].物理化学学报,2007,23(5):659-663.Zhang Xiaofei,Hu Ruisheng,Gao Guanjun,et al.Influence of two complexants on structure and performance of Ce-Sn-O complex oxides[J].Acta Physico-Chimica Sinica,2007,23(5):659-663.
[14]王彦红,王为,侯峰岩,等.Zr O2微粒与基质金属及溶液间相互作用的研究[J].电镀与涂饰,2005,24(12):1-3.Wang Yanhong,Wang Wei,Hou Fengyan,et al.Study on the interaction of the Zr O2particle with substrate metal and bath[J].Electroplating and Finishing,2005,24(12):1-3.
[15]席艳军,刘泳俊.电沉积Fe-Ni-Cr镀层的腐蚀性能研究[J].中原工学院学报,2007,18(5):27-29.Xi Yanjun,Liu Yongjun.Study of corrosion behavior of the Fe-Ni-Cr electroplated coating[J].Journal of Zhongyuan University of Technology,2007,18(5):27-29.
[16]Chen Zhouhao,Ma Zhipeng,Song Jianjun,et al.Novel one-step synthesis of wood-ball-like Ni-carbon nanotubes composite cathodes with favorable electrocatalytic activity for hydrogen evolution reaction in alkaline solution[J].Journal of Power Sources,2016,324:86-96.
[17]袁国伟.电化学阻抗谱在电沉积研究中的应用[J].电镀与涂饰,2007,27(1):1-4.Yuan Guowei.Application of electrochemical impedance spectroscopy to the research of electrodeposition[J].Electroplating and Finishing,2007,27(1):1-4.
[18]朱艳兵,隋然,王杰鹏,等.Ni-Sn合金的电沉积过程与析氢反应性能研究[J].电镀与精饰,2015,37(4):42-46.Zhu Yanbing,Sui Ran,Wang Jiepeng,et al.Studies on electrodeposition process and hydrogen evolution performance of Ni-Sn alloy[J].Plating and Finishing,2015,37(4):42-46.
[19]Highfield J G,Claude E,Oguro K.Electrocatalytic synergism in Ni/Mo cathodes for hydrogen evolution in acid medium:A new model[J].Electrochimica Acta,1999,44(16):2805-2814.
[20]Tang Junlei,Zhao Xuhui,Zuo Yu,et al.Electrodeposited Pd-Ni-Mo film as a cathode material for hydrogen evolution reaction[J].Electrochimica Acta,2015,174:1041-1049.
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