| 一步水热法制备高效析氧3D花球阵列Co9S8/MoS2@TM催化电极 |
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| 引用本文： | 卫学玲,包维维,蒋鹏,艾桃桃,李文虎,邹祥宇.一步水热法制备高效析氧3D花球阵列Co9S8/MoS2@TM催化电极[J].精细化工,2022,39(1). |
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| 作者姓名： | 卫学玲 包维维 蒋鹏 艾桃桃 李文虎 邹祥宇 |
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| 作者单位： | 陕西理工大学,陕西理工大学,陕西理工大学,陕西理工大学,陕西理工大学,陕西理工大学 |
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| 摘 要： | 以四水合钼酸铵、六水合硝酸钴和硫脲为原料,采用一步水热法在钛网(TM)上原位构筑了不同阵列结构Co_9S_8/Mo S_2@TM催化电极。通过改变原料中钴、钼、硫的物质的量之比来调控Co_9S_8/Mo S_2@TM电极的结构。采用SEM、XRD和XPS对Co_9S_8/Mo S_2@TM进行物相分析和形貌表征,并在1 mol/L KOH电解液中对Co_9S_8/Mo S_2@TM的电催化析氧性能进行了研究。结果表明,钴、钼、硫的物质的量之比为10∶14∶600时,制备的Co_9S_8/Mo S_2@TM为3D花瓣状阵列结构,且在10 m A/cm~2电流密度下过电势为271 m V,塔菲尔斜率为88.5 m V/dec,具有良好的析氧稳定性和耐久性,展现了优异的电化学性能。
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| 关 键 词： | 一步水热法 电催化析氧 Co9S8/Mo S2@TM 花瓣状阵列结构 有机电化学与工业 |
| 收稿时间： | 2021/5/9 0:00:00 |
| 修稿时间： | 2021/9/23 0:00:00 |
One-step hydrothermal synthesis of 3D flower-like Co9S8/MoS2@TM as efficient oxygen evolution electrode |
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| WEI Xue-ling,Bao Wei-wei,JIANG Peng,AI Taotao,LI Wenhu and ZOU Xiangyu.One-step hydrothermal synthesis of 3D flower-like Co9S8/MoS2@TM as efficient oxygen evolution electrode[J].Fine Chemicals,2022,39(1). |
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| Authors: | WEI Xue-ling Bao Wei-wei JIANG Peng AI Taotao LI Wenhu and ZOU Xiangyu |
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| Affiliation: | Shaanxi University of Technology,Shaanxi University of Technology,Shaanxi University of Technology,Shaanxi University of Technology,Shaanxi University of Technology,Shaanxi University of Technology |
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| Abstract: | A Co9S8/MoS2 composite has been prepared successfully via a one-step hydrothermal method. This 3D flower-like Co9S8/MoS2 electrocatalyst insitu grown on Ti mesh.Serving as an oxygen evolution reaction(OER) electrode, the obtained Co9S8/MoS2@TM delivers a current density of 10 mA/cm2 at low overpotentials of 316mV in alkaline media and small Tafel slope values of 88.5 mV/dec.The superior electrochemical properties of the Co9S8/MoS2@TM are attributed to 3d nanoarray,which both enlarging the electrochemical surface area(ECSA),and exposing abundant active sites,that ensures easy diffusion of electrolyte and fast release of gas products. Moreover,Co9S8/MoS2@TM exhibited high activity and 20h stability for OER . |
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