Preparation and hydrogen evolution performance of Ni-Sn/MoO 2 composite electrodes Zhu Zirui Xing Lehong * Zhao Yutong Zuo Yue Sun Chenyang Hao Yungui Fu Xiaotong[J].Plating & Finishing,2024,(11):36-42.
Ni-Sn / MoO2 复合电极的制备及析氢性能研究
- Title:
- Preparation and hydrogen evolution performance of Ni-Sn/MoO 2 composite electrodes Zhu Zirui Xing Lehong * Zhao Yutong Zuo Yue Sun Chenyang Hao Yungui Fu Xiaotong
- 关键词:
- 复合电沉积; Ni-Sn/MoO 2 复合镀层; 析氢性能; 稳定性
- Keywords:
- composite electrodeposition ; Ni-Sn/MoO 2 composite coating ; hydrogen evolution performance ; stability
- 分类号:
- TQ116.2
- 文献标志码:
- A
- 摘要:
- 在焦磷酸盐体系中，通过复合电沉积技术制备了 Ni-Sn/MoO 2 复合镀层，探究了 MoO 2 质量浓度对 Ni-Sn/MoO 2 复合镀层析氢性能和稳定性的影响。通过 X 射线衍射（ XRD ）、扫描电子显微镜（ SEM ）、能量色散 X 射线谱仪（ EDS ）对复合镀层进行了物理表征。结果表明， MnO 2 颗粒成功沉积到复合镀层中，并改变了 Ni-Sn 合金电极的组成和微观形貌。通过线性极化曲线（ LSV ）、塔菲尔曲线（ Tafel ）、电化学阻抗谱（ EIS ）、计时电位法（ CP ）对复合镀层的析氢性能和稳定性进行了测试，与 Ni-Sn 合金电极相比， MoO 2 的加入有效地提高了 Ni-Sn/MoO 2 复合镀层的性能，在 10 mA/cm 2 极化电流密度下， MoO 2 浓度为 0.75 g/L 时制备的复合镀层表现出最低的析氢过电位（ 296.91 mV ），具有更高的析氢性能和稳定性。
- Abstract:
- ： Ni-Sn/MoO 2 composite coatings were prepared by composite electrodeposition in pyrophosphate system. The effect of MoO 2 concentration on the hydrogen evolution activity and stability of Ni-Sn/MoO 2 composite coatings was investigated. The composite coatings were physically characterized by XRD ， SEM and EDS. The results showed that MnO 2 particles were successfully deposited into the composite coating ， and the composition and the microscopic morphology of Ni-Sn coating were altered. The hydrogen evolution activity and stability of composite coatings were tested by LSV ， Tafel ， EIS ， and CP. Compared with Ni-Sn alloy coating ， the addition of MoO 2 effectively improved the performance of composite coating. When the MoO 2 concentration was 0.75 g/L ， the composite coatings showed the lowest hydrogen evolution overpotential （ 296.91 mV ） at a polarized current density of 10 mA/cm 2 ， and had the highest hydrogen evolution performance and stability.
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备注/Memo
收稿日期： 2024-04-15 修回日期： 2024-05-18 作者简介： 祝子锐（ 2002 ─ ），男，本科生，主要从事析氢材料方面的研究， email ： 2411193353@qq.com * 通信作者： 邢乐红（ 1983 ─ ），女，博士，副教授，主要从事复合材料方面的研究， email ： xinglehonghit@126.com 基金项目： 黑龙江省自然科学基金联合引导项目（ LH2022B023 ）；黑龙江省基本科研业务费科研项目（ 1453ZD028 ）；牡丹江师范学院研究生课程思政教学研究中心项目（ MSYYJZX2022005 ）；牡丹江师范学院研究生课程思政高质量建设项目（高等电化学， KCSZKC-2022008 ）；牡丹江师范学院研究生科技创新项目（ kjcx2022-068mdjnu ）；牡丹江师范学院大学生创新创业训练计划项目（ 202310233006 ）