Issue 36, 2022
From the journal:

Chemical Communications

Anomalous large capacitances of porous carbons based on protium adsorption†

Yoshitsugu Kojima, ORCID logo *a   Masakuni Yamaguchi,a   Haruo Sawa,b   Katsuhide Kikuchi,c   Noriyuki Hiramitsu,d   Masahiko Kimbara,e   Haruyuki Nakanishif  and  Yasuhiro Takahashif  

* Corresponding authors

a Natural Science Center for Basic Research and Development, Hiroshima University, 1-3-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8530, Japan
E-mail: kojimay@hiroshima-u.ac.jp

b Chemio Co. Ltd, 3-30, Minami Shinta-cho, Kochi 781-8005, Japan

c SOKEN, Inc., 500-20, Minamiyama, Komenoki-cho, Nissin, Aichi 470-011, Japan

d Tsuchiya Co. Ltd, 9-29, Kamimaezu 2-chome, Naka-ku, Nagoya 460-8330, Japan

e GF Innovation Ltd, 2235-7, Shimoona, Mikkabi-cho, Kita-ku, Hamamatsu, Shizuoka 431-1424, Japan

f Toyota Motor Corporation, 1, Toyota-cho, Toyota, Aichi 471-8571, Japan

Abstract

The capacitances of porous carbon anodes were determined using a Ni(OH)2 cathode. We found that the capacitances were 300–700 F g−1 and above 3 times those of the carbon anodes prepared by electrical double layer formation, revealing the large capacitances based on protium H adsorption in the presence of highly concentrated KOH solution.

Graphical abstract: Anomalous large capacitances of porous carbons based on protium adsorption

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Article information

DOI
https://doi.org/10.1039/D2CC01338J
Article type
Communication
Submitted
07 Mar 2022
Accepted
08 Apr 2022
First published
08 Apr 2022

Chem. Commun., 2022,58, 5542-5545

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Anomalous large capacitances of porous carbons based on protium adsorption

Y. Kojima, M. Yamaguchi, H. Sawa, K. Kikuchi, N. Hiramitsu, M. Kimbara, H. Nakanishi and Y. Takahashi, Chem. Commun., 2022, 58, 5542 DOI: 10.1039/D2CC01338J

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