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Floating Seawater Splitting Device Based on NiFeCrMo Metal Hydroxide Electrocatalyst and Perovskite/Silicon Tandem Solar Cells
ACS Nano ( IF 15.8 ) Pub Date : 2023-02-21 , DOI: 10.1021/acsnano.2c10477 Sanjiang Pan 1, 2, 3, 4, 5 , Renjie Li 1, 3, 4, 5 , Jin Wang 1, 3, 4, 5 , Qixing Zhang 1, 3, 4, 5 , Manjing Wang 1, 3, 4, 5 , Biao Shi 1, 3, 4, 5 , Pengyang Wang 1, 3, 4, 5 , Ying Zhao 1, 3, 4, 5, 6 , Xiaodan Zhang 1, 3, 4, 5, 6
ACS Nano ( IF 15.8 ) Pub Date : 2023-02-21 , DOI: 10.1021/acsnano.2c10477 Sanjiang Pan 1, 2, 3, 4, 5 , Renjie Li 1, 3, 4, 5 , Jin Wang 1, 3, 4, 5 , Qixing Zhang 1, 3, 4, 5 , Manjing Wang 1, 3, 4, 5 , Biao Shi 1, 3, 4, 5 , Pengyang Wang 1, 3, 4, 5 , Ying Zhao 1, 3, 4, 5, 6 , Xiaodan Zhang 1, 3, 4, 5, 6
Affiliation
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Photovoltaic hydrogen production from seawater is of great significance. Challenges of solar-driven seawater electrolysis, for example, competing among chlorine evolution reactions, chloride corrosion, and catalyst poisoning, seriously restrict the development of this technology. In this paper, we report a two-dimensional nanosheet quaternary metal hydroxide catalyst composed of Ni, Fe, Cr, and Mo elements. By in situ electrochemical activation, a partial Mo element was leached and morphologically transformed in the catalyst. The higher metal valence states and many O vacancies were obtained, providing excellent catalytic activity and corrosion resistance in overall alkaline seawater electrolysis operating at an industrial-required current density of 500 mA cm–2 over 1000 h under 1.82 V low voltages at room temperature. The floating solar seawater splitting device shows a 20.61 ± 0.77% efficiency of solar energy to hydrogen (STH). This work demonstrates the development of efficient solar seawater electrolysis devices and potentially promotes research on clean energy conversion.
中文翻译：
基于NiFeCrMo金属氢氧化物电催化剂和钙钛矿/硅叠层太阳能电池的浮动海水裂解装置
海水光伏制氢意义重大。太阳能驱动海水电解面临的析氯反应竞争、氯化物腐蚀、催化剂中毒等挑战严重制约了该技术的发展。在本文中，我们报道了一种由 Ni、Fe、Cr 和 Mo 元素组成的二维纳米片季金属氢氧化物催化剂。通过原位电化学活化，部分钼元素在催化剂中被浸出并发生形态转变。获得了更高的金属价态和许多 O 空位，在工业要求的 500 mA cm –2 电流密度下，在整体碱性海水电解中提供了优异的催化活性和耐腐蚀性在室温下 1.82 V 低电压下超过 1000 小时。漂浮的太阳能海水分解装置显示出 20.61 ± 0.77% 的太阳能制氢 (STH) 效率。这项工作展示了高效太阳能海水电解装置的发展，并可能促进清洁能源转换的研究。
更新日期：2023-02-21
中文翻译：
基于NiFeCrMo金属氢氧化物电催化剂和钙钛矿/硅叠层太阳能电池的浮动海水裂解装置
海水光伏制氢意义重大。太阳能驱动海水电解面临的析氯反应竞争、氯化物腐蚀、催化剂中毒等挑战严重制约了该技术的发展。在本文中，我们报道了一种由 Ni、Fe、Cr 和 Mo 元素组成的二维纳米片季金属氢氧化物催化剂。通过原位电化学活化，部分钼元素在催化剂中被浸出并发生形态转变。获得了更高的金属价态和许多 O 空位，在工业要求的 500 mA cm –2 电流密度下，在整体碱性海水电解中提供了优异的催化活性和耐腐蚀性在室温下 1.82 V 低电压下超过 1000 小时。漂浮的太阳能海水分解装置显示出 20.61 ± 0.77% 的太阳能制氢 (STH) 效率。这项工作展示了高效太阳能海水电解装置的发展，并可能促进清洁能源转换的研究。
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