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Cover Feature: Nanographene Aerogels: Size Effect of the Precursor Graphene Oxide on Gelation Process and Electrochemical Properties (ChemNanoMat 4/2018)
Author(s) -
Kudo Akira,
Campbell Patrick G.,
Biener Juergen
Publication year - 2018
Publication title -
chemnanomat
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.947
H-Index - 32
ISSN - 2199-692X
DOI - 10.1002/cnma.201800073
Subject(s) - overpotential , graphene , oxide , materials science , fourier transform infrared spectroscopy , chemical engineering , electrochemistry , aerogel , supercapacitor , nanotechnology , chemistry , electrode , engineering , metallurgy
Nanographene aerogels (nG‐AGs) were synthesized by organic sol‐gel chemistry using nanographene oxide (nGO) powder whose mean diameter was less than 100 nm. Compared to standard graphene oxide, the increased concentration of edge sites and defects with functional groups provided the longer fast gelation regime as observed by in situ Fourier‐transform infrared (FTIR) spectroscopy. A higher surface‐area‐normalized capacitance and a lower overpotential for hydrogen evolution reaction (HER) than standard graphene aerogels (stdG‐AGs) were also observed. More information can be found in the Communication by Akira Kudo et al. on page 338 in Issue 4, 2018 (DOI: 10.1002/cnma.201700292).