TY - JOUR
T1 - Electrochemical hydrogen production from humid air using cation-modified graphene oxide membranes
AU - Hamidah, Nur Laila
AU - Shintani, Masataka
AU - Ahmad Fauzi, Aynul Sakinah
AU - Kitamura, Shota
AU - Mission, Elaine G.
AU - Hatakeyama, Kazuto
AU - Sasaki, Mitsuru
AU - Quitain, Armando T.
AU - Kida, Tetsuya
N1 - Publisher Copyright:
© 2020 IUPAC & De Gruyter. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. For more information, please visit: http://creativecommons.org/licenses/by-nc-nd/4.0/ 2020.
PY - 2021/1/1
Y1 - 2021/1/1
N2 - Water electrolysis is an environment-friendly process of producing hydrogen with zero-carbon emission. Herein, we studied the water vapor electrolysis using a proton-conducting membrane composed of graphene oxide (GO) nanosheets intercalated with cations (Al3+ and Ce3+). We examined the effect of cation introduction on the physical and chemical structures, morphology, thermal and chemical stabilities, and the proton conductivity of stacked GO nanosheet membranes by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), X-ray photoemission spectroscopy (XPS), Raman spectroscopy, atomic force microscopy (AFM), dynamic light scattering (DLS), thermogravimetric-differential thermal analysis (TG-DTA), and electrochemical impedance spectroscopy (EIS). Concentration cell measurements revealed that the cation-modified membranes are pure proton conductors at room temperature. The proton conductivity of a GO membrane was much improved by cation modification. The cation-modified GO membranes, sandwiched with Pt/C electrodes as the cathode and anode, electrolyzed humidified air to produce hydrogen at room temperature, indicating the feasibility of this carbon-based electrochemical device.
AB - Water electrolysis is an environment-friendly process of producing hydrogen with zero-carbon emission. Herein, we studied the water vapor electrolysis using a proton-conducting membrane composed of graphene oxide (GO) nanosheets intercalated with cations (Al3+ and Ce3+). We examined the effect of cation introduction on the physical and chemical structures, morphology, thermal and chemical stabilities, and the proton conductivity of stacked GO nanosheet membranes by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), X-ray photoemission spectroscopy (XPS), Raman spectroscopy, atomic force microscopy (AFM), dynamic light scattering (DLS), thermogravimetric-differential thermal analysis (TG-DTA), and electrochemical impedance spectroscopy (EIS). Concentration cell measurements revealed that the cation-modified membranes are pure proton conductors at room temperature. The proton conductivity of a GO membrane was much improved by cation modification. The cation-modified GO membranes, sandwiched with Pt/C electrodes as the cathode and anode, electrolyzed humidified air to produce hydrogen at room temperature, indicating the feasibility of this carbon-based electrochemical device.
KW - Cations
KW - ICGC-8
KW - graphene oxide
KW - proton conductor
KW - water vapor electrolysis
UR - http://www.scopus.com/inward/record.url?scp=85091357699&partnerID=8YFLogxK
U2 - 10.1515/pac-2019-0807
DO - 10.1515/pac-2019-0807
M3 - Article
AN - SCOPUS:85091357699
SN - 0033-4545
VL - 93
SP - 1
EP - 11
JO - Pure and Applied Chemistry
JF - Pure and Applied Chemistry
IS - 1
ER -
