| 镍铁水滑石/还原氧化石墨烯的制备及电催化水氧化性能 |
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| 引用本文： | 杜世超,任志宇,吴君,付宏刚. 镍铁水滑石/还原氧化石墨烯的制备及电催化水氧化性能[J]. 高等学校化学学报, 2016, 37(8): 1415-1420. DOI: 10.7503/cjcu20160173 |
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| 作者姓名： | 杜世超 任志宇 吴君 付宏刚 |
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| 作者单位： | 1. 吉林大学理论化学研究所, 长春 1300232. 黑龙江大学功能无机材料教育部重点实验室, 化学化工与材料学院, 哈尔滨 150080 |
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| 基金项目： | 国家自然科学基金(批准号: 21371053, 21573062)和黑龙江省自然科学基金(批准号: QC2013C009)资助 |
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| 摘 要： | 首先制备了不同镍/铁比的镍铁水滑石, 并通过液相剥离法得到水滑石纳米薄片溶胶, 随后将其与还原氧化石墨烯复合, 并对其进行了电催化水氧化的性能测试. 结果表明, 镍铁水滑石的剥离可以大幅度提高其电催化性能, 起峰电位为1.47 V, 电流密度为10 mA/cm2 时, 电位仅为1.53 V; 与还原氧化石墨烯复合后, 其催化活性得到了进一步提高, 在10 mA/cm2时电位降为 1.515 V.
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| 关 键 词： | 镍铁水滑石 电催化水制氧 分解水 还原氧化石墨 |
| 收稿时间： | 2016-03-23 |
Ni-Fe LDH/Reduced Graphene Oxide as Catalyst for Oxygen Evolution Reaction |
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| DU Shichao,REN Zhiyu,WU Jun,FU Honggang. Ni-Fe LDH/Reduced Graphene Oxide as Catalyst for Oxygen Evolution Reaction[J]. Chemical Research In Chinese Universities, 2016, 37(8): 1415-1420. DOI: 10.7503/cjcu20160173 |
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| Authors: | DU Shichao REN Zhiyu WU Jun FU Honggang |
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| Affiliation: | 1. Institute of Theoretical Chemistry, Jilin University, Changchun 130023, China2. Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of China,School of Chemistry and Materials, Heilongjiang University, Harbin 150080, China |
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| Abstract: | The composites of Ni-Fe layered double hydroxide( LDH) and reduced graphene oxide( rGO) were successfully prepared via a simple exfoliation and electrostatic self-assembly and were used as catalysts for electrooxidation of water ( oxygen evolution reaction, OER ) . The exfoliated Ni-Fe LDH samples exhibited much higher water oxidation activity than the bulk ones. The onset potential was 1. 470 V vs. RHE and the potential for maintaining a current density of 10 mA/cm2 was 1. 530 V vs. RHE. After being fabricated with rGO, the composite showed better performance for water oxidation than exfoliated Ni-Fe LDH, and the potential for maintaining a current density of 10 mA/cm2 was decreased to 1. 515 V vs. RHE. |
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| Keywords: | Ni-Fe layered double hydroxide ( LDH ) Oxygen evolution reaction Water-splitting Reduced graphene oxide( rGO) |
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