Highly porous Co-doped NiO nanorods: facile hydrothermal synthesis and electrocatalytic oxygen evolution properties
Highly porous 3d transition metal oxide nanostructures are opening up the exciting area of oxygen evolution reaction (OER) catalysts in alkaline medium thanks to their good thermal and chemical stability, excellent physiochemical properties, high specific surface area and abundant nanopores. In this...
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doaj-5fcf97c969f44f17865a35bcf9c7dc7d2021-09-22T07:05:23ZengThe Royal SocietyRoyal Society Open Science2054-57032021-09-018910.1098/rsos.202352Highly porous Co-doped NiO nanorods: facile hydrothermal synthesis and electrocatalytic oxygen evolution propertiesNguyen Duc Cuong0Tien D. Tran1Quyen T. Nguyen2Ho Van Minh Hai3Tran Thai Hoa4Duong Tuan Quang5Wantana Klysubun6Phong D. Tran7University of Sciences, Hue University, 77 Nguyen Hue, Hue City, Viet NamUniversity of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, 100000 Hanoi, Viet NamUniversity of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, 100000 Hanoi, Viet NamUniversity of Sciences, Hue University, 77 Nguyen Hue, Hue City, Viet NamUniversity of Sciences, Hue University, 77 Nguyen Hue, Hue City, Viet NamUniversity of Education, Hue University, 34 Le Loi, Viet NamSynchrotron Light Research Institute, 111 Moo 6, University Avenue, Muang, Nakhon Ratchasima 30000, ThailandUniversity of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, 100000 Hanoi, Viet NamHighly porous 3d transition metal oxide nanostructures are opening up the exciting area of oxygen evolution reaction (OER) catalysts in alkaline medium thanks to their good thermal and chemical stability, excellent physiochemical properties, high specific surface area and abundant nanopores. In this paper, highly porous Co-doped NiO nanorods were successfully synthesized by a simple hydrothermal method. The porous rod-like nanostructures were preserved with the added cobalt dopant ranging from 1 to 5 at% but were broken into aggregated nanoparticles at higher concentrations of additional cobalt. The catalytic activity of Co-doped NiO nanostructures for OER in an alkaline medium was assayed. The 5%Co-NiO sample showed a drastically enhanced activity. This result could originate from the combination of advantageous characteristics of highly porous NiO nanorods such as large surface area and high porosity as well as the important role of Co dopant that could provide more catalytic active sites, leading to an enhanced catalytic activity of the nanocatalyst.https://royalsocietypublishing.org/doi/10.1098/rsos.202352nickel oxideCo dopanthighly porous nanorodsoxygen evolution reactionsynergistic effect |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Nguyen Duc Cuong Tien D. Tran Quyen T. Nguyen Ho Van Minh Hai Tran Thai Hoa Duong Tuan Quang Wantana Klysubun Phong D. Tran |
spellingShingle |
Nguyen Duc Cuong Tien D. Tran Quyen T. Nguyen Ho Van Minh Hai Tran Thai Hoa Duong Tuan Quang Wantana Klysubun Phong D. Tran Highly porous Co-doped NiO nanorods: facile hydrothermal synthesis and electrocatalytic oxygen evolution properties Royal Society Open Science nickel oxide Co dopant highly porous nanorods oxygen evolution reaction synergistic effect |
author_facet |
Nguyen Duc Cuong Tien D. Tran Quyen T. Nguyen Ho Van Minh Hai Tran Thai Hoa Duong Tuan Quang Wantana Klysubun Phong D. Tran |
author_sort |
Nguyen Duc Cuong |
title |
Highly porous Co-doped NiO nanorods: facile hydrothermal synthesis and electrocatalytic oxygen evolution properties |
title_short |
Highly porous Co-doped NiO nanorods: facile hydrothermal synthesis and electrocatalytic oxygen evolution properties |
title_full |
Highly porous Co-doped NiO nanorods: facile hydrothermal synthesis and electrocatalytic oxygen evolution properties |
title_fullStr |
Highly porous Co-doped NiO nanorods: facile hydrothermal synthesis and electrocatalytic oxygen evolution properties |
title_full_unstemmed |
Highly porous Co-doped NiO nanorods: facile hydrothermal synthesis and electrocatalytic oxygen evolution properties |
title_sort |
highly porous co-doped nio nanorods: facile hydrothermal synthesis and electrocatalytic oxygen evolution properties |
publisher |
The Royal Society |
series |
Royal Society Open Science |
issn |
2054-5703 |
publishDate |
2021-09-01 |
description |
Highly porous 3d transition metal oxide nanostructures are opening up the exciting area of oxygen evolution reaction (OER) catalysts in alkaline medium thanks to their good thermal and chemical stability, excellent physiochemical properties, high specific surface area and abundant nanopores. In this paper, highly porous Co-doped NiO nanorods were successfully synthesized by a simple hydrothermal method. The porous rod-like nanostructures were preserved with the added cobalt dopant ranging from 1 to 5 at% but were broken into aggregated nanoparticles at higher concentrations of additional cobalt. The catalytic activity of Co-doped NiO nanostructures for OER in an alkaline medium was assayed. The 5%Co-NiO sample showed a drastically enhanced activity. This result could originate from the combination of advantageous characteristics of highly porous NiO nanorods such as large surface area and high porosity as well as the important role of Co dopant that could provide more catalytic active sites, leading to an enhanced catalytic activity of the nanocatalyst. |
topic |
nickel oxide Co dopant highly porous nanorods oxygen evolution reaction synergistic effect |
url |
https://royalsocietypublishing.org/doi/10.1098/rsos.202352 |
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