Elucidation of the reaction mechanism on dry reforming of methane in an electric field by in situ DRIFTs

被引：22

作者：

Nakano, Naoya ^{[1
]}

Torimoto, Maki ^{[1
]}

Sampei, Hiroshi ^{[1
]}

Yamashita, Reiji ^{[1
]}

Yamano, Ryota ^{[1
]}

Saegusa, Koki ^{[1
]}

Motomura, Ayaka ^{[1
]}

Nagakawa, Kaho ^{[1
]}

Tsuneki, Hideaki ^{[1
]}

Ogo, Shuhei ^{[2
,3
]}

Sekine, Yasushi ^{[1
]}

机构：

[1] Waseda Univ, Dept Appl Chem, Shinjuku Ku, 3-4-1 Okubo, Tokyo 1698555, Japan

[2] Kochi Univ, Fac Agr & Marine Sci, Dept Marine Resources Sci, Nankoku, Kochi 7838502, Japan

[3] Kochi Univ, Ctr Adv Marine Core Res, Nankoku, Kochi 7838502, Japan

来源：

RSC ADVANCES | 2022年 / 12卷 / 15期

关键词：

GAS SHIFT REACTION; TRANSFORM INFRARED-SPECTROSCOPY; DIELECTRIC BARRIER DISCHARGE; DIMETHYL CARBONATE SYNTHESIS; INITIO MOLECULAR-DYNAMICS; OXYGEN VACANCY FORMATION; CO OXIDATION; SUPPORTED CATALYSTS; SURFACE PROTONICS; PT/ZRO2; CATALYSTS;

D O I：

10.1039/d2ra00402j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

With increasing expectations for carbon neutrality, dry reforming is anticipated for direct conversion of methane and carbon dioxide: the main components of biogas. We have found that dry reforming of methane in an electric field using a Pt/CeO2 catalyst proceeds with sufficient rapidity even at a low temperature of about 473 K. The effect of the electric field (EF) on dry reforming was investigated using kinetic analysis, in situ DRIFTs, XPS, and DFT calculation. In situ DRIFTs and XPS measurements indicated that the amount of carbonate, which is an adsorbed species of CO2, increased with the application of EF. XPS measurements also confirmed the reduction of CeO2 by the reaction of surface oxygen and CH4. The reaction between CH4 molecules and surface oxygen was promoted at the interface between Pt and CeO2.

引用

页码：9036 / 9043

页数：8

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