Controlling Size, Amount, and Crystalline Structure of Nanoparticles Deposited on Graphenes for Highly Efficient Energy Conversion and Storage | Health & Environmental Research Online (HERO)

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Citation
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HERO ID

1037655

Reference Type

Journal Article

Title

Controlling Size, Amount, and Crystalline Structure of Nanoparticles Deposited on Graphenes for Highly Efficient Energy Conversion and Storage

Author(s)

Choi, BG; Park, HS

Year

2012

Is Peer Reviewed?

Yes

Journal

ChemSusChem
ISSN: 1864-5631
EISSN: 1864-564X

Volume

Issue

Page Numbers

709-715

Language

English

PMID

22441814

DOI

10.1002/cssc.201100565

URL

https://onlinelibrary.wiley.com/doi/10.1002/cssc.201100565
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Abstract

A facilitated electrochemical reaction at the surface of electrodes is crucial for highly efficient energy conversion and storage. Herein, various nanoparticles (NPs) including Au, Pt, Pd, Ru, and RuO(2) , were synthesized in situ and directly deposited on the ionic liquid (IL)-functionalized reduced graphene oxides (RGOs) in a controlled manner. The size, amount, and crystalline structures of discrete NPs were readily controlled, giving rise to enhanced methanol oxidation and pseudocapacitance. The well-defined nanostructure of decorated NPs and the favorable interaction between ILs and RGOs (or NPs) facilitated the electrochemical reaction, where NPs acted as electrocatalysts for energy conversion and played the role of redox-active electrodes for energy storage.

Keywords

energy conversion; energy storage; graphene; ionic liquids; nanoparticles