期刊
ACS APPLIED MATERIALS & INTERFACES
卷 8, 期 23, 页码 14527-14534出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b02733
关键词
layered double hydroxide; carbon nanotube; electrocatalyst; oxygen evolution; water splitting
资金
- National Basic Research Program of China (973 Program) [2013CB632404]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- New Century Excellent Talents in University [NCET-12-0268]
- National Natural Science Foundation of China [21473090, 51272102]
Active, stable, and cost-effective electrocatalysts are attractive alternatives to the noble metal oxides that have been used in water splitting. The direct nucleation and growth of electrochemically active LDH materials on chemically modified MWCNTs exhibit considerable electrocatalytic activity toward oxygen evolution from water oxidation. CoMn-based and NiMn-based hybrids were syntheSiied using a facile chemical bath deposition method and thews-synthesized materials exhibited three-dimensional hierarchical configurations with tunable Co/Mn and Ni/Mn ratio. Benefiting from enhanced electrical conductivity with MWCNT backbones and LDH lamellar structure, the Co5Mn-LDH/MWCNT and Ni5Mn-LDH/MWCNT could generated a current density of 10 mA cm(-2) at overpotentials of similar to 300 and similar to 350 mV, respectively, in 1 M KOH. In addition, the materials also exhibited outstanding long-term electrocatalytic stability.
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