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Stable platinum nanoclusters on genomic DNA–graphene oxide with a high oxygen reduction reaction activity

Nanosize platinum clusters with small diameters of 2–4 nm are known to be excellent catalysts for the oxygen reduction reaction. The inherent catalytic activity of smaller platinum clusters has not yet been reported due to a lack of preparation methods to control their size (<2 nm). Here we repor...

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Autores principales: Tiwari, Jitendra N., Nath, Krishna, Kumar, Susheel, Tiwari, Rajanish N., Kemp, K. Christian, Le, Nhien H., Youn, Duck Hyun, Lee, Jae Sung, Kim, Kwang S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Pub. Group 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3731667/
https://www.ncbi.nlm.nih.gov/pubmed/23900456
http://dx.doi.org/10.1038/ncomms3221
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author Tiwari, Jitendra N.
Nath, Krishna
Kumar, Susheel
Tiwari, Rajanish N.
Kemp, K. Christian
Le, Nhien H.
Youn, Duck Hyun
Lee, Jae Sung
Kim, Kwang S.
author_facet Tiwari, Jitendra N.
Nath, Krishna
Kumar, Susheel
Tiwari, Rajanish N.
Kemp, K. Christian
Le, Nhien H.
Youn, Duck Hyun
Lee, Jae Sung
Kim, Kwang S.
author_sort Tiwari, Jitendra N.
collection PubMed
description Nanosize platinum clusters with small diameters of 2–4 nm are known to be excellent catalysts for the oxygen reduction reaction. The inherent catalytic activity of smaller platinum clusters has not yet been reported due to a lack of preparation methods to control their size (<2 nm). Here we report the synthesis of platinum clusters (diameter ≤1.4 nm) deposited on genomic double-stranded DNA–graphene oxide composites, and their high-performance electrocatalysis of the oxygen reduction reaction. The electrochemical behaviour, characterized by oxygen reduction reaction onset potential, half-wave potential, specific activity, mass activity, accelerated durability test (10,000 cycles) and cyclic voltammetry stability (10,000 cycles) is attributed to the strong interaction between the nanosize platinum clusters and the DNA–graphene oxide composite, which induces modulation in the electronic structure of the platinum clusters. Furthermore, we show that the platinum cluster/DNA–graphene oxide composite possesses notable environmental durability and stability, vital for high-performance fuel cells and batteries.
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spelling pubmed-37316672013-08-02 Stable platinum nanoclusters on genomic DNA–graphene oxide with a high oxygen reduction reaction activity Tiwari, Jitendra N. Nath, Krishna Kumar, Susheel Tiwari, Rajanish N. Kemp, K. Christian Le, Nhien H. Youn, Duck Hyun Lee, Jae Sung Kim, Kwang S. Nat Commun Article Nanosize platinum clusters with small diameters of 2–4 nm are known to be excellent catalysts for the oxygen reduction reaction. The inherent catalytic activity of smaller platinum clusters has not yet been reported due to a lack of preparation methods to control their size (<2 nm). Here we report the synthesis of platinum clusters (diameter ≤1.4 nm) deposited on genomic double-stranded DNA–graphene oxide composites, and their high-performance electrocatalysis of the oxygen reduction reaction. The electrochemical behaviour, characterized by oxygen reduction reaction onset potential, half-wave potential, specific activity, mass activity, accelerated durability test (10,000 cycles) and cyclic voltammetry stability (10,000 cycles) is attributed to the strong interaction between the nanosize platinum clusters and the DNA–graphene oxide composite, which induces modulation in the electronic structure of the platinum clusters. Furthermore, we show that the platinum cluster/DNA–graphene oxide composite possesses notable environmental durability and stability, vital for high-performance fuel cells and batteries. Nature Pub. Group 2013-07-31 /pmc/articles/PMC3731667/ /pubmed/23900456 http://dx.doi.org/10.1038/ncomms3221 Text en Copyright © 2013, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by-nc-sa/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/
spellingShingle Article
Tiwari, Jitendra N.
Nath, Krishna
Kumar, Susheel
Tiwari, Rajanish N.
Kemp, K. Christian
Le, Nhien H.
Youn, Duck Hyun
Lee, Jae Sung
Kim, Kwang S.
Stable platinum nanoclusters on genomic DNA–graphene oxide with a high oxygen reduction reaction activity
title Stable platinum nanoclusters on genomic DNA–graphene oxide with a high oxygen reduction reaction activity
title_full Stable platinum nanoclusters on genomic DNA–graphene oxide with a high oxygen reduction reaction activity
title_fullStr Stable platinum nanoclusters on genomic DNA–graphene oxide with a high oxygen reduction reaction activity
title_full_unstemmed Stable platinum nanoclusters on genomic DNA–graphene oxide with a high oxygen reduction reaction activity
title_short Stable platinum nanoclusters on genomic DNA–graphene oxide with a high oxygen reduction reaction activity
title_sort stable platinum nanoclusters on genomic dna–graphene oxide with a high oxygen reduction reaction activity
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3731667/
https://www.ncbi.nlm.nih.gov/pubmed/23900456
http://dx.doi.org/10.1038/ncomms3221
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