| C60-MoP-C纳米花范德瓦耳斯异质结及其电催化析氢性能 | |
| C60-MoP-C nanoflowers van der Waals heterojunctions and its electrocatalytic hydrogen evolution performance | |
| 摘要: 采用气固法制备了磷化钼-碳纳米花(MoP-CFs)，通过简单的超声自组装将C60修饰在MoP-CFs表面，形成范德瓦耳斯异质结。研究其电催化析氢性能发现，C60的修饰能够有效降低电催化析氢过电位。其中，10% C60-MoP-CFs样品(10%为C60的质量分数)表现出最佳催化活性，在酸性和碱性条件下达到10 mA·cm-2的电流密度时，所需要的过电位分别为158和157 mV，并且具有至少20 h的电催化稳定性。C60与MoP-CFs之间强电子耦合作用促进电子由C60迁移到MoP-CFs表面，有助于减小电荷传输阻力，加快电催化析氢界面反应动力学过程。 | |
| 关键词: 富勒烯 能量转换 多相催化 电化学制氢 绿色化学 | |
| 基金项目: 国家自然科学基金(No.21771003)、安徽省高校协同创新项目(No.GXXT-2022-006)和安徽省重大产业创新计划项目(No.AHZDCYCX-LSDT2023-04)资助。 | |
| Abstract: Molybdenum phosphide-carbon nanoflowers (MoP-CFs) were prepared by the gas-solidification method, and C60 was modified on the surface of MoP-CFs to form van der Waals heterojunctions by simple ultrasonic selfassembly. It is found that the modification of C60 can effectively reduce the overpotential of electrocatalytic hydrogen evolution. Among all samples, 10% C60-MoP-CFs (10% was the mass fraction of C60) exhibited the best catalytic activity with overpotentials of 158 and 157 mV to achieve a current density of 10 mA·cm-2 in acidic and alkaline conditions, respectively. Moreover, this sample also showed good stability which could work stably for more than 20 h. The strong electron coupling between C60 and MoP-CFs promotes electron migration from C60 to the surface of MoP-CFs, reduces the charge transport resistance, and accelerates the electrocatalytic hydrogen evolution interface reaction kinetics process. | |
| Keywords: fullerene energy conversion heterogeneous catalysis electrocatalytic hydrogen evolution green chemistry | |
| 投稿时间：2023-08-02 修订日期：2024-01-18 | |
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| 李文江,关平丽,余锐,程源晟,魏先文.C60-MoP-C纳米花范德瓦耳斯异质结及其电催化析氢性能[J].无机化学学报,2024,40(4):771-781. | |
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