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Wood-Derived, Monolithic Chainmail Electrocatalyst for Biomass-Assisted Hydrogen Production
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2023-05-10 , DOI: 10.1002/aenm.202300427
Di Li 1 , Zengyong Li 1 , Zhongxin Chen 2 , Ge Shi 1, 3 , Lu Wang 2 , Zehong Chen 1 , Wenguang Tu 2 , Ruidong Xia 4 , Emmanuel I. Iwuoha 5 , Chuanfu Liu 1 , Xinwen Peng 1
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2023-05-10 , DOI: 10.1002/aenm.202300427
Di Li 1 , Zengyong Li 1 , Zhongxin Chen 2 , Ge Shi 1, 3 , Lu Wang 2 , Zehong Chen 1 , Wenguang Tu 2 , Ruidong Xia 4 , Emmanuel I. Iwuoha 5 , Chuanfu Liu 1 , Xinwen Peng 1
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The chainmail catalyst by encapsulating an active species within the carbon support is a well-established concept to endorse extraordinary stability for catalytic reactions under harsh conditions. Conventional chainmail catalysts inevitably suffer from poor accessibility to active sites, leading to extra voltage to compensate the sluggish diffusion kinetics in electrocatalysis. Herein, the naturally abundant wood material is converted into a monolithic chainmail electrocatalyst by encapsulating cobalt nanoparticles within N-doped carbonized wood. Such a monolithic chainmail catalyst is employed directly as electrode for hydrogen evolution (HER), oxygen evolution (OER), and monosaccharide oxidation reactions (MOR) with benchmark performance. By coupling the HER with MOR, the electrolyzer equipped with the monolithic chainmail catalyst allows hydrogen production at a current density of 100 mA cm−2 with a full cell voltage of only 1.36 V. Such design of wood-derived chainmail catalyst provides a promising way to fabricate robust electrocatalysts for future production of hydrogen and value-added chemicals.
中文翻译：
用于生物质辅助制氢的木材衍生整体链甲电催化剂
通过将活性物质封装在碳载体内的链甲催化剂是一个成熟的概念，可在恶劣条件下保证催化反应的非凡稳定性。传统的链式催化剂不可避免地会遇到活性位点难以接近的问题，导致需要额外的电压来补偿电催化中缓慢的扩散动力学。在此，通过将钴纳米颗粒封装在氮掺杂的碳化木材中，将天然丰富的木质材料转化为整体链甲电催化剂。这种整体式链甲催化剂可直接用作析氢（HER）、析氧（OER）和单糖氧化反应（MOR）的电极，具有基准性能。通过将 HER 与 MOR 偶联，−2，全电池电压仅为 1.36 V。木材衍生链甲催化剂的这种设计为制造用于未来生产氢气和增值化学品的强大电催化剂提供了一种有前景的方法。
更新日期：2023-05-10
中文翻译：
用于生物质辅助制氢的木材衍生整体链甲电催化剂
通过将活性物质封装在碳载体内的链甲催化剂是一个成熟的概念，可在恶劣条件下保证催化反应的非凡稳定性。传统的链式催化剂不可避免地会遇到活性位点难以接近的问题，导致需要额外的电压来补偿电催化中缓慢的扩散动力学。在此，通过将钴纳米颗粒封装在氮掺杂的碳化木材中，将天然丰富的木质材料转化为整体链甲电催化剂。这种整体式链甲催化剂可直接用作析氢（HER）、析氧（OER）和单糖氧化反应（MOR）的电极，具有基准性能。通过将 HER 与 MOR 偶联，−2，全电池电压仅为 1.36 V。木材衍生链甲催化剂的这种设计为制造用于未来生产氢气和增值化学品的强大电催化剂提供了一种有前景的方法。
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