High-quality vanadium-doped MoS2 ultrathin nanosheets as an efficient ORR catalyst
High-quality vanadium-doped MoS2 ultrathin nanosheets as an efficient ORR catalyst
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高质量掺钒 MoS2 超薄纳米片作为高效 ORR 催化剂
DOI：
10.1039/c8nj05365k
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发表时间：
2019-01-21
影响因子：
3.3
通讯作者：
Jiao, Huan
中科院分区：
文献类型：
--
作者：
He, Tianyu;Xu, Ling;Jiao, Huan
对于碱性燃料电池的阴极反应，开发具有优良催化性能的新型催化剂是至关重要的。二维二硫化钼纳米片已被证明是一种有效的电催化剂，特别是在析氢反应中。然而，MoS_2作为氧还原反应(ORR)潜在电催化剂的研究较少。通过化学掺杂引入钒原子显著提高了MoS_2纳米片的ORR活性，与体相MoS_2相比有了很大的提高。钒杂原子不仅可以改变原始材料的电学性质和能带结构，而且为催化提供了丰富的活性中心。
For alkaline fuel cell cathode reactions, it is crucial to develop new catalysts with excellent catalytic performance. Two-dimensional molybdenum disulfide nanosheets have proven to be effective electrocatalysts, especially in hydrogen evolution reactions. However, MoS2 has been less researched as a potential electrocatalyst for oxygen reduction reaction (ORR). The introduction of vanadium atoms by chemical doping significantly increases the ORR activity of the MoS2 nanosheets, which is greatly improved compared to the bulk MoS2. The vanadium heteroatoms can not only change the electrical properties and band structure of the pristine materials, but also provide a rich active site for the catalysis.