Supplementary material from "Highly porous co-doped NiO nanorods: facile hydrothermal synthesis and electrocatalytic oxygen evolution properties"

Posted on 15.09.2021 - 08:24
Highly porous 3d transition metal oxide nanostructure is opening up the exciting area of oxygen evolution reaction (OER) catalysts in alkaline medium thanks to their good thermal-, chemical-stability, excellent physiochemical properties, high specific surface area and abundant nanopores. In this paper, the 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 it was 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 enhancing catalytic activity of nanocatalyst.

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Cuong, Nguyen Duc; Tran, Tien D.; Nguyen, Quyen T.; Van Minh Hai, Ho; Hoa, Tran Thai; Quang, Duong Tuan; et al. (2021): Supplementary material from "Highly porous co-doped NiO nanorods: facile hydrothermal synthesis and electrocatalytic oxygen evolution properties". The Royal Society. Collection. https://doi.org/10.6084/m9.figshare.c.5619123.v1
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