title: Enhancing capacitance behaviour of CoOOH nanostructures using transition metal dopants by ambient oxidation.
abstract: Cobalt hydrate and doped binary Co0.9M0.1OOH (M = Ni, Mn, Fe) nanorings of 100-300 nm were fabricated in solution through a facile ambient oxidation method. A transformation from Co0.9Ni0.1(OH)2 nanodiscs to hollow Co0.9Ni0.1OOH nanorings was observed with prolonged reaction time. Core-shell nanodiscs have elemental segregation with a Co(OH)2 core and Ni(OH)2 shell. Co0.9Ni0.1OOH nanorings displayed a higher electrochemical capacitance than Mn and Fe doped nanorings materials or materials with disc-like geometries.
authors: Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, 100124, China.|School of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Republic of Ireland.
authors: Yanhui
authors: Y
authors: Chen
authors: School of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Republic of Ireland.
authors: Junfeng
authors: J
authors: Zhou
authors: School of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Republic of Ireland.
authors: Pierce
authors: P
authors: Maguire
authors: School of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Republic of Ireland.
authors: Robert
authors: R
authors: O'Connell
authors: School of Chemistry and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Republic of Ireland.
authors: Wolfgang
authors: W
authors: Schmitt
authors: Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, 100124, China.
authors: Yonghe
authors: Y
authors: Li
authors: Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, 100124, China.
authors: Zhengguang
authors: Z
authors: Yan
authors: Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, 100124, China.
authors: Yuefei
authors: Y
authors: Zhang
authors: School of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Republic of Ireland.
authors: Hongzhou
authors: H
authors: Zhang