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Recent Advances with Biomass-Derived Carbon-Based Catalysts for the High-Efficiency Electrochemical Reduction of Oxygen to Hydrogen Peroxide
Advanced Energy and Sustainability Research ( IF 6.2 ) Pub Date : 2023-09-08 , DOI: 10.1002/aesr.202300128 Yuan Wang 1 , Haihong Zhong 1 , Weiting Yang 1 , Yongjun Feng 2 , Nicolas Alonso-Vante 3
Advanced Energy and Sustainability Research ( IF 6.2 ) Pub Date : 2023-09-08 , DOI: 10.1002/aesr.202300128 Yuan Wang 1 , Haihong Zhong 1 , Weiting Yang 1 , Yongjun Feng 2 , Nicolas Alonso-Vante 3
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The oxygen reduction reaction (ORR) plays a pivotal role in electrochemical energy conversion and chemical production. Two-electron (2e−) charge transfer for oxygen reduction is considered a promising method for the on-site production of hydrogen peroxide (H2O2), which requires electrocatalysts with high H2O2 selectivity and ORR activity. Noble metal alloys (e.g., Pt-Hg and Pd-Hg) have been prevalent materials of choice due to their desirable intrinsic activity, but their scarcity and high cost seriously hinder their widespread application in practice. Self-doped heteroatomic carbon-based electrocatalysts, derived from abundant and inexpensive biomass, have emerged as attractive candidates for on-site H2O2 production. This review summarizes the fundamentals and recent advances in H2O2 production via 2e− ORR, including basic catalytic mechanisms, the influence of electrolyte pH and porous structure of catalysts, selectivity assessment methods, determination of the cumulative H2O2 concentration, development of biomass-derived carbon-based catalyst, and electrochemical device designs. Current challenges and proposed opportunities are also presented with an emphasis on large-scale electrochemical H2O2 synthesis.
中文翻译：
生物质衍生碳基催化剂用于高效电化学还原氧气生成过氧化氢的最新进展
氧还原反应（ORR）在电化学能量转换和化学生产中起着关键作用。用于氧还原的双电子 (2e - ) 电荷转移被认为是现场生产过氧化氢 (H 2 O 2 ) 的一种有前途的方法，这需要具有高 H 2 O 2选择性和 ORR 活性的电催化剂。贵金属合金（例如Pt-Hg和Pd-Hg）由于其理想的本征活性而成为普遍选择的材料，但它们的稀缺性和高成本严重阻碍了它们在实践中的广泛应用。自掺杂杂原子碳基电催化剂源自丰富且廉价的生物质，已成为现场 H 2 O 2生产的有吸引力的候选者。本文综述了2e − ORR生产H 2 O 2的基本原理和最新进展，包括基本催化机理、电解质pH和催化剂多孔结构的影响、选择性评估方法、累积H 2 O 2浓度的测定、发展生物质衍生的碳基催化剂和电化学装置设计。还提出了当前的挑战和提出的机遇，重点是大规模电化学 H 2 O 2合成。
更新日期：2023-09-08
中文翻译：
生物质衍生碳基催化剂用于高效电化学还原氧气生成过氧化氢的最新进展
氧还原反应（ORR）在电化学能量转换和化学生产中起着关键作用。用于氧还原的双电子 (2e - ) 电荷转移被认为是现场生产过氧化氢 (H 2 O 2 ) 的一种有前途的方法，这需要具有高 H 2 O 2选择性和 ORR 活性的电催化剂。贵金属合金（例如Pt-Hg和Pd-Hg）由于其理想的本征活性而成为普遍选择的材料，但它们的稀缺性和高成本严重阻碍了它们在实践中的广泛应用。自掺杂杂原子碳基电催化剂源自丰富且廉价的生物质，已成为现场 H 2 O 2生产的有吸引力的候选者。本文综述了2e − ORR生产H 2 O 2的基本原理和最新进展，包括基本催化机理、电解质pH和催化剂多孔结构的影响、选择性评估方法、累积H 2 O 2浓度的测定、发展生物质衍生的碳基催化剂和电化学装置设计。还提出了当前的挑战和提出的机遇，重点是大规模电化学 H 2 O 2合成。
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