当前位置：
X-MOL 学术
›
ACS Catal.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Cobalt Molybdenum Oxide Derived High-Performance Electrocatalyst for the Hydrogen Evolution Reaction
ACS Catalysis ( IF 11.3 ) Pub Date : 2018-04-26 00:00:00 , DOI: 10.1021/acscatal.8b00949 Mingjie Zang 1 , Ning Xu 1 , Guoxuan Cao 1 , Zhengjun Chen 1 , Jie Cui 2 , Liyong Gan 1 , Hongbin Dai 1 , Xianfeng Yang 2 , Ping Wang 1
ACS Catalysis ( IF 11.3 ) Pub Date : 2018-04-26 00:00:00 , DOI: 10.1021/acscatal.8b00949 Mingjie Zang 1 , Ning Xu 1 , Guoxuan Cao 1 , Zhengjun Chen 1 , Jie Cui 2 , Liyong Gan 1 , Hongbin Dai 1 , Xianfeng Yang 2 , Ping Wang 1
Affiliation
|
The design and synthesis of high-performance hydrogen evolution reaction (HER) catalysts requires an overall consideration of intrinsic activity and number of active sites as well as electric conductivity. We herein report a facile synthesis of a cost-effective catalyst that can simultaneously address these key issues. A cobalt molybdenum oxide hydrate (CoMoO4·nH2O) with a 3D hierarchical nanostructure can be readily grown on nickel foam using a hydrothermal method. Calcination treatment of this precursor material under a reductive atmosphere resulted in the formation of Co nanoparticles on the Co2Mo3O8 surface, which worked in concert to act as active sites for the HER. In addition, the resulting Co2Mo3O8 from the dehydration and reduction reactions of CoMoO4·nH2O showed remarkable increases in both active surface area and electrical conductivity. As a consequence of these favorable attributes, the catalyst exhibited electrocatalytic performance comparable to that of the commercial Pt/C catalyst for the HER in alkaline solution, which is promising for practical water-splitting applications.
中文翻译：
钴氧化钼衍生的高性能氢气析氢反应催化剂
高性能氢析出反应（HER）催化剂的设计和合成需要整体考虑内在活性和活性位点数量以及电导率。我们在此报告了一种经济有效的催化剂的简便合成方法，该方法可以同时解决这些关键问题。具有3D分层纳米结构的氧化钼钴水合物（CoMoO 4 · n H 2 O）可以使用水热法很容易地在泡沫镍上生长。在还原性气氛下对该前体材料进行煅烧处理导致在Co 2 Mo 3 O 8上形成Co纳米颗粒。表面，这些表面共同作用是HER的活跃位点。另外，由CoMoO 4 · n H 2 O的脱水和还原反应得到的Co 2 Mo 3 O 8的活性表面积和电导率均显着增加。由于这些有利的特性，该催化剂表现出的电催化性能与碱性溶液中HER的商业Pt / C催化剂相当，这对于实际的水分解应用是有前途的。
更新日期：2018-04-26
中文翻译：
钴氧化钼衍生的高性能氢气析氢反应催化剂
高性能氢析出反应（HER）催化剂的设计和合成需要整体考虑内在活性和活性位点数量以及电导率。我们在此报告了一种经济有效的催化剂的简便合成方法，该方法可以同时解决这些关键问题。具有3D分层纳米结构的氧化钼钴水合物（CoMoO 4 · n H 2 O）可以使用水热法很容易地在泡沫镍上生长。在还原性气氛下对该前体材料进行煅烧处理导致在Co 2 Mo 3 O 8上形成Co纳米颗粒。表面，这些表面共同作用是HER的活跃位点。另外，由CoMoO 4 · n H 2 O的脱水和还原反应得到的Co 2 Mo 3 O 8的活性表面积和电导率均显着增加。由于这些有利的特性，该催化剂表现出的电催化性能与碱性溶液中HER的商业Pt / C催化剂相当，这对于实际的水分解应用是有前途的。
京公网安备 11010802027423号