TY - JOUR
T1 - Role of Electric Field and Surface Protonics on Low-Temperature Catalytic Dry Reforming of Methane
AU - Yabe, Tomohiro
AU - Yamada, Kensei
AU - Murakami, Kota
AU - Toko, Kenta
AU - Ito, Kazuharu
AU - Higo, Takuma
AU - Ogo, Shuhei
AU - Sekine, Yasushi
N1 - Funding Information:
This work was supported by KAKENHI (grant number: 17H07194). S. Enomoto (Kagami Memorial Research Institute for Materials Science and Technology, Waseda University) is appreciated for lending great assistance for FE-TEM operations and EDS measurements.
Publisher Copyright:
Copyright © 2019 American Chemical Society.
PY - 2019/3/18
Y1 - 2019/3/18
N2 - The role of the electric field and surface protonics on low temperature catalytic dry reforming of methane was investigated over 1 wt %Ni/10 mol %La-ZrO2 catalyst, which shows very high catalytic activity even at temperatures as low as 473 K. We investigated kinetic analyses using isotope and in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), and kinetic analyses revealed synergetic effects between the catalytic reaction and the electric field with less than one-fifth the apparent activation energy at low reaction temperatures. Results of kinetic investigations using isotopes such as CD4 and 18O2, in situ DRIFTS in the electric field, and density functional theory calculation indicate that methane dry reforming proceeds well by virtue of surface protonics. CH4 and CO2 were activated by proton collision at the Ni-La-ZrO2 interface based on the "inverse" kinetic isotope effect.
AB - The role of the electric field and surface protonics on low temperature catalytic dry reforming of methane was investigated over 1 wt %Ni/10 mol %La-ZrO2 catalyst, which shows very high catalytic activity even at temperatures as low as 473 K. We investigated kinetic analyses using isotope and in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), and kinetic analyses revealed synergetic effects between the catalytic reaction and the electric field with less than one-fifth the apparent activation energy at low reaction temperatures. Results of kinetic investigations using isotopes such as CD4 and 18O2, in situ DRIFTS in the electric field, and density functional theory calculation indicate that methane dry reforming proceeds well by virtue of surface protonics. CH4 and CO2 were activated by proton collision at the Ni-La-ZrO2 interface based on the "inverse" kinetic isotope effect.
KW - Carbon dioxide utilization
KW - Dry reforming of methane
KW - Ni catalyst
KW - Surface protonics
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U2 - 10.1021/acssuschemeng.8b04727
DO - 10.1021/acssuschemeng.8b04727
M3 - Article
AN - SCOPUS:85062469014
SN - 2168-0485
VL - 7
SP - 5690
EP - 5697
JO - ACS Sustainable Chemistry and Engineering
JF - ACS Sustainable Chemistry and Engineering
IS - 6
ER -
