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Bifunctionally active nanosized spinel cobalt nickel sulfides for sustainable secondary zinc-air batteries: Examining the effects of compositional tuning on OER and ORR activity
Xu Y.a, Sumboja A.c,d, Zong Y., Darr J.A.a
a Department of Chemistry, University College London, London, WC1H 0AJ, United Kingdom
b Institute of Materials Research and Engineering (IMRE), ASTAR (Agency for Science, Technology and Research), Singapore, 138634, Singapore
c Material Science and Engineering Research Group, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Bandung, 40132, Indonesia
d National Centre for Sustainable Transportation Technology (NCSTT), Bandung, 40132, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2020 The Royal Society of Chemistry.A range of compositionally-tuned nanosized cobalt nickel sulfides (125 cycles) and a decent power density of 87 mW cm-2 at 150 mA cm-2 in zinc-air batteries. The electrochemical study of the series of cobalt nickel sulfides made herein suggests that a high electronic conductivity is responsible for the high bifunctional performance, with Ni(iii) being identified as a contributor to the OER, while Co(ii) and Ni(ii) are identified as contributors to the ORR activity. These cathode materials would be highly suitable for safe, sustainable, and long-life zinc-air secondary batteries.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Compositional tuning,Continuous hydrothermal flow synthesis,Electrochemical studies,Electronic conductivity,Nanosized spinels,Nominal composition,Oxygen evolution reaction (oer),Rechargeable zinc-air batteries[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]The Engineering and Physical Sciences Research Council is acknowledged for funding the Centre for Doctoral Training in Molecular Modelling & Materials Science (UCL, UK; EPSRC reference EP/L015862/1) and A*STAR (Singapore) is acknowledged for supporting a studentship for YX. JAD also thanks EPSRC for funding The JUICED Hub (Joint University Industry Consortium for Energy (Materials) and Devices Hub, EP/R023662/1). A. S. acknowledges the funding from the Indonesian Ministry of Research, Technology and Higher Education under the WCU Program managed by Institut Teknologi Bandung.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1039/c9cy02185j[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]