One-Pot Synthesis of Metal–Carbon Nanotubes Network Hybrids as Highly Efficient Catalysts for Oxygen Evolution Reaction of Water Splitting
Oxygen evaluation reaction (OER) is the most important reaction in hydrogen production from watersplitting. Here we developed metal-carbon nanotubes (MCNTs) hybrids with high metal oxide catalyst loading synthesized by arc-discharge and chemical vapor deposition (CVD) methods as electrocatalysts for...
| Main Authors: | , , , |
|---|---|
| Format: | Journal Article |
| Published: |
American Chemical Society
2014
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/21912 |
| _version_ | 1848750723812032512 |
|---|---|
| author | Cheng, Yi Liu, C. Cheng, H. Jiang, San Ping |
| author_facet | Cheng, Yi Liu, C. Cheng, H. Jiang, San Ping |
| author_sort | Cheng, Yi |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Oxygen evaluation reaction (OER) is the most important reaction in hydrogen production from watersplitting. Here we developed metal-carbon nanotubes (MCNTs) 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 (?) of 0.29 V and 500 A g-1 at ? = 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. |
| first_indexed | 2025-11-14T07:41:22Z |
| format | Journal Article |
| id | curtin-20.500.11937-21912 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:41:22Z |
| publishDate | 2014 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-219122017-10-02T02:28:20Z One-Pot Synthesis of Metal–Carbon Nanotubes Network Hybrids as Highly Efficient Catalysts for Oxygen Evolution Reaction of Water Splitting Cheng, Yi Liu, C. Cheng, H. Jiang, San Ping arc-discharge one-pot synthesis chemical vapor deposition metal-carbon nanotubes hybrids alkaline water electrolysis oxygen evolution reaction Oxygen evaluation reaction (OER) is the most important reaction in hydrogen production from watersplitting. Here we developed metal-carbon nanotubes (MCNTs) 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 (?) of 0.29 V and 500 A g-1 at ? = 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. 2014 Journal Article http://hdl.handle.net/20.500.11937/21912 10.1021/am500988p American Chemical Society restricted |
| spellingShingle | arc-discharge one-pot synthesis chemical vapor deposition metal-carbon nanotubes hybrids alkaline water electrolysis oxygen evolution reaction Cheng, Yi Liu, C. Cheng, H. Jiang, San Ping One-Pot Synthesis of Metal–Carbon Nanotubes Network Hybrids as Highly Efficient Catalysts for Oxygen Evolution Reaction of Water Splitting |
| title | One-Pot Synthesis of Metal–Carbon Nanotubes Network Hybrids as Highly Efficient Catalysts for Oxygen Evolution Reaction of Water Splitting |
| title_full | One-Pot Synthesis of Metal–Carbon Nanotubes Network Hybrids as Highly Efficient Catalysts for Oxygen Evolution Reaction of Water Splitting |
| title_fullStr | One-Pot Synthesis of Metal–Carbon Nanotubes Network Hybrids as Highly Efficient Catalysts for Oxygen Evolution Reaction of Water Splitting |
| title_full_unstemmed | One-Pot Synthesis of Metal–Carbon Nanotubes Network Hybrids as Highly Efficient Catalysts for Oxygen Evolution Reaction of Water Splitting |
| title_short | One-Pot Synthesis of Metal–Carbon Nanotubes Network Hybrids as Highly Efficient Catalysts for Oxygen Evolution Reaction of Water Splitting |
| title_sort | one-pot synthesis of metal–carbon nanotubes network hybrids as highly efficient catalysts for oxygen evolution reaction of water splitting |
| topic | arc-discharge one-pot synthesis chemical vapor deposition metal-carbon nanotubes hybrids alkaline water electrolysis oxygen evolution reaction |
| url | http://hdl.handle.net/20.500.11937/21912 |