掺杂 Cr 的 Pd 金属烯纳米带超结构用于氧还原反应和甲酸氧化。
Cr-doped Pd metallene nanoribbon superstructures for the oxygen reduction reaction and formic acid oxidation.
机构信息
State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals, College of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou Province 550025, P. R. China.
Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China.
出版信息
Chem Commun (Camb). 2023 Feb 23;59(17):2473-2476. doi: 10.1039/d2cc06664e.
Metallene is receiving continuous attention because of its unique properties in electrocatalysis. Herein, we report a new class of three-dimensional (3D) Cr-doped Pd metallene nanoribbon (PdCr MNR) assembly. The 3D PdCr MNR was about 4 or 5 atomic layers thick with high-density low-coordinated Pd sites and abundant defects. The 3D PdCr MNR/C exhibited significantly enhanced oxygen reduction reaction and formic acid oxidation reaction compared with the commercial Pt/C and Pd/C and long-term durability. This work introduces a new member in the class of the metallene family, and this novel material is a promising bifunctional electrocatalyst for practical direct methanol/formic acid fuel cell devices.
由于其在电催化中的独特性质，金属烯受到了持续关注。在此，我们报告了一类新型的三维（3D）Cr 掺杂 Pd 金属烯纳米带（PdCr MNR）组装体。3D PdCr MNR 的厚度约为 4 或 5 个原子层，具有高密度低配位 Pd 位和丰富的缺陷。与商业 Pt/C 和 Pd/C 相比，3D PdCr MNR/C 表现出显著增强的氧还原反应和甲酸氧化反应以及长期耐久性。这项工作引入了金属烯家族的一个新成员，这种新型材料是一种有前途的实用直接甲醇/甲酸燃料电池器件的双功能电催化剂。
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