|One-Pot Synthesis of Metal-Carbon Nanotubes Network Hybrids as Highly Efficient Catalysts for Oxygen Evolution Reaction of Water Splitting|
|Y. Cheng; C. Liu; H. M. Cheng; S. P. Jiang
|Source Publication||Acs Applied Materials & Interfaces
|Abstract||Oxygen evaluation reaction (OER) is the most important reaction in hydrogen production from water splitting. Here we developed metal-carbon nanotubes (M-CNTs) hybrids with high metal oxide catalyst loading synthesized by arc-discharge and chemical vapor deposition (CVD) methods as electrocatalysts for OER in alkaline solutions. The M-CNTs hybrids produced by arc-discharge (M-CNTs-Arc) and CVD (M-CNTs-CVD) exhibit a core-shell-like structure, in which metal nanoparticles (NPs) encapsulated by graphite shells are connected by carbon nanotubes (CNTs), forming M-CNTs network hybrids. M-CNTs-Arc has NiCo0.16Fe0.34 metal core and shows very high activity and superior stability for OER, achieving 100 A g(-1) at an overpotential (eta) of 0.29 V and 500 A g(-1) at eta = 0.37 V in 1 M KOH solution. This is probably the highest activity reported for OER in alkaline solutions. The reaction follows the first-order kinetics with respect to OH- concentration and Tafel slope of 34 mV dec(-1). The results demonstrate a highly efficient, scalable, and lowcost one-step synthesis method for developing highly active and stable catalysts for electrochemical water splitting in alkaline solutions.|
; jiang, san ping] curtin univ, fuels & energy technol inst, perth, wa 6102, australia. [liu, chang
; cheng, hui-ming] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china.
; jiang, sp (reprint author), curtin univ, fuels & energy technol inst, perth, wa 6102, australia.
|Keyword||Metal-carbon Nanotubes Hybrids
Chemical Vapor Deposition
Oxygen Evolution Reaction
Y. Cheng,C. Liu,H. M. Cheng,et al. One-Pot Synthesis of Metal-Carbon Nanotubes Network Hybrids as Highly Efficient Catalysts for Oxygen Evolution Reaction of Water Splitting[J]. Acs Applied Materials & Interfaces,2014,6(13):10089-10098.
Y. Cheng,C. Liu,H. M. Cheng,&S. P. Jiang.(2014).One-Pot Synthesis of Metal-Carbon Nanotubes Network Hybrids as Highly Efficient Catalysts for Oxygen Evolution Reaction of Water Splitting.Acs Applied Materials & Interfaces,6(13),10089-10098.
Y. Cheng,et al."One-Pot Synthesis of Metal-Carbon Nanotubes Network Hybrids as Highly Efficient Catalysts for Oxygen Evolution Reaction of Water Splitting".Acs Applied Materials & Interfaces 6.13(2014):10089-10098.
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