Electrocatalyst derived from fungal hyphae and its excellent activity for electrochemical production of hydrogen peroxide
Electrocatalyst derived from fungal hyphae and its excellent activity for electrochemical production of hydrogen peroxide
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源自真菌菌丝的电催化剂及其电化学生产过氧化氢的优异活性
DOI：
10.1016/j.electacta.2019.04.011
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发表时间：
2019-06
影响因子：
6.6
通讯作者：
Jia Rong
中科院分区：
文献类型：
--
作者：
Zhang Hai Xia;Yang Shi Chao;Wang Yun Lu;Xi Jian Chao;Huang Jing Cheng;Li Jiang Feng;Chen Ping;Jia Rong
电化学氧还原法制备过氧化氢是一种很有前途的工艺，但开发低成本、高性能的碳基电催化剂仍是一个巨大的挑战。报道了一种以真菌菌丝为原料制备H2O2电催化剂的新方法优化的电催化剂具有大的比表面积和许多纳米孔，在碱性介质中对O2还原产生H2O2表现出优异的活性、选择性和稳定性，选择性和在中性介质中的稳定性。以优化的电催化剂为阴极、IrO2为阳极的流动电池在碱性介质中表现出极高的法拉第效率、H2O2产率和能量效率。当由商业干电池（1.5 V）或由太阳能电池（2.5 V或3.0 V）驱动时，这保持了法拉第效率和H2O2生产率。这对电催化还原O2生产H2O2的电催化剂的开发和工业应用具有重要的指导意义。这种低成本、简单且易于扩展的方法为开发用于其他电化学反应（例如析氢反应、析氧反应和CO2还原反应）的新型电催化剂提供了见解。
Producing hydrogen peroxide (H2O2) by electrochemical O2reduction is a promising process, although developing high-performance carbon-based electrocatalysts at a low-cost with high-volume production remains a great challenge. We report a novel method to prepare the excellent electrocatalysts for the H2O2production derived from the fungal hyphae (with bioconcentrated dye), which was used as the main sources of C, N, O, and P. The optimizational electrocatalyst had a large surface area with many nanopores, which exhibited excellent activity, selectivity, and stability towards O2reduction when producing H2O2in an alkaline media and good activity, selectivity, and stability in neutral media. A flow cell with the optimizational electrocatalyst as cathode and IrO2as anode exhibited exceptionally high Faradaic efficiency, H2O2productivity, and energetic efficiency in alkaline media. This maintained the Faradaic efficiency and H2O2productivity when driven by commercial dry battery (1.5 V) or by solar-energy battery (2.5 V or 3.0 V). This is helpful in developing an electrocatalyst for H2O2production and practical industrial application of O2reduction to H2O2by electrocatalysis. This low-cost, simple, and readily scalable approach offers insight for developing a novel electrocatalyst for other electrochemical reactions, such as hydrogen evolution reactions, oxygen evolution reactions, and CO2reduction reactions.
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影响因子：
13.1
作者：
Hasche, Frederic;Oezaslan, Mehtap;Fellinger, Tim-Patrick
通讯作者：
Fellinger, Tim-Patrick
影响因子：
7.3
作者：
K. Zhao;Yan Su;X. Quan;Yanming Liu;Shuo Chen;Hongtao Yu
通讯作者：
K. Zhao;Yan Su;X. Quan;Yanming Liu;Shuo Chen;Hongtao Yu
影响因子：
3.7
作者：
Kellner H;Luis P;Pecyna MJ;Barbi F;Kapturska D;Krüger D;Zak DR;Marmeisse R;Vandenbol M;Hofrichter M
通讯作者：
Hofrichter M
影响因子：
23.5
作者：
W. P. Mounfield;Aaron Garg;Y. Shao-horn;Yuriy Román‐Leshkov
通讯作者：
W. P. Mounfield;Aaron Garg;Y. Shao-horn;Yuriy Román‐Leshkov
DOI：
--
发表时间：
2018
期刊：
--
影响因子：
--
作者：
Yanyan Sun;I. Sinev;W. Ju;A. Bergmann;Sören Dresp;S. Kühl;C. Spöri;Henrike Schmies;Huan Wang
通讯作者：
Yanyan Sun;I. Sinev;W. Ju;A. Bergmann;Sören Dresp;S. Kühl;C. Spöri;Henrike Schmies;Huan Wang