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首页> 外文期刊>Advanced Functional Materials >Corrosion Engineering on Iron Foam toward Efficiently Electrocatalytic Overall Water Splitting Powered by Sustainable Energy
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Corrosion Engineering on Iron Foam toward Efficiently Electrocatalytic Overall Water Splitting Powered by Sustainable Energy

机译：可持续能源有效电催化整体水分裂的铁泡沫腐蚀工程

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摘要

Exploiting highly effective and low-cost electrocatalysts for the hydrogen evolution reaction (HER) is a pressing challenge for the development of sustainable hydrogen energy. In this work, a facile and industrially compatible one-pot corrosion strategy for the rapid synthesis of amorphous RuO2-decorated FeOOH nanosheets on iron foam (FF-Na-Ru) within 1 h is reported. Corrosion is a common and inevitable phenomenon that occurs on metal surfaces without electricity input, high temperature, and tedious synthetic procedures. The FF-Na-Ru electrode is superhydrophilic and aerophobic, which guarantees intimate contact with the electrolyte and accelerates the instantaneous escape of produced gas bubbles during the electrocatalytic process. Moreover, the strong electronic interactions between RuO2 and FeOOH promote the electrocatalytic process via dramatically improving the electrochemical interfacial properties. Thus, the FF-Na-Ru electrocatalyst presents excellent catalytic activity towards the HER (30 mV at 10 mA cm(-2)) and overall water-splitting (230 mV at 10 mA cm(-2)) in 1 M KOH. The overall water-splitting could be simply powered by sustainable and intermittent sunlight, wind, and thermal energies motivated Stirling engine. Density functional theory calculations confirm that coupling effects between RuO2 and FeOOH are also responsible for promoting the electrocatalytic HER performance.
机译：利用高效和低成本的电催化剂用于氢进化反应（她）是可持续氢能量的迫切挑战。在这项工作中，报道了一种适用于1小时内的铁泡沫（FF-Na-Ru）的无定形Ruo2装饰FeOOH纳米蛋白酶的容易和工业兼容的单壶腐蚀策略。腐蚀是一种常见而不可避免的现象，在没有电力输入，高温和繁琐的合成程序的金属表面上发生。 FF-Na-ru电极是超级水和散风的，其保证与电解质的紧密接触，并在电催化过程中加速产生的气泡的瞬时逸出。此外，Ruo2和FeOOH之间的强电子相互作用通过显着改善电化学界面性能而促进电催化过程。因此，FF-Na-Ru电催化剂朝着她的催化活性呈现出优异的催化活性（30mV，10 mA cm（-2）），并在1M KOH中整体水分解（230mV，10 mA cm（-2））。整体水分裂可以简单地由可持续和间歇性阳光，风和热能动力驱动斯特林发动机。密度函数理论计算证实，Ruo2和FeOOH之间的耦合效应也负责促进电催化的性能。

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  • 来源
    《Advanced Functional Materials》 |2021年第17期|2010437.1-2010437.9|共9页
  • 作者

    Wu Zexing; Zhao Ying; Wu Hengbo; Gao Yuxiao; Chen Zhi; Jin Wei; Wang Jinsong; Ma Tianyi; Wang Lei;

  • 作者单位

    Qingdao Univ Sci & Technol Coll Chem & Mol Engn State Key Lab Base Ecochem Engn 53 Zhengzhou Rd Qingdao 266042 Peoples R China;

    Qingdao Univ Sci & Technol Coll Chem & Mol Engn State Key Lab Base Ecochem Engn 53 Zhengzhou Rd Qingdao 266042 Peoples R China;

    Tongji Univ Sch Environm Sci & Engn State Key Lab Pollut Control & Resources Reuse 1239 Siping Rd Shanghai 200092 Peoples R China;

    Qingdao Univ Sci & Technol Coll Chem & Mol Engn State Key Lab Base Ecochem Engn 53 Zhengzhou Rd Qingdao 266042 Peoples R China;

    Qingdao Univ Sci & Technol Coll Chem & Mol Engn State Key Lab Base Ecochem Engn 53 Zhengzhou Rd Qingdao 266042 Peoples R China;

    Tongji Univ Sch Environm Sci & Engn State Key Lab Pollut Control & Resources Reuse 1239 Siping Rd Shanghai 200092 Peoples R China;

    Kunming Univ Sci & Technol Fac Mat Sci & Engn Kunming 650093 Yunnan Peoples R China;

    Swinburne Univ Technol Fac Sci Engn & Technol Ctr Translat Atomat John St Hawthorn Vic 3122 Australia;

    Qingdao Univ Sci & Technol Coll Chem & Mol Engn State Key Lab Base Ecochem Engn 53 Zhengzhou Rd Qingdao 266042 Peoples R China;

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  • 正文语种 eng
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  • 关键词

    FeOOH; hydrogen; oxygen evolution reaction; ruthenium oxide; water splitting;

    机译：FeOOH;氢;氧气进化反应;氧化钌;水分裂;

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