Electrochemical reforming of methane using SrZr0.5Ce0.4Y0.1O3-δ proton-conductor cell combined with paper-structured catalyst
| Autor: | Shota Maeda, Kwati Leonard, Daisuke Kurashina, Hiroshige Matsumoto, Yusuke Shiratori, Takaya Fujisaki |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Hydrogen Methane reformer Renewable Energy Sustainability and the Environment education Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Water-gas shift reaction 0104 chemical sciences Electrochemical cell Catalysis Steam reforming Fuel Technology chemistry Chemical engineering 0210 nano-technology health care economics and organizations Hydrogen production Proton conductor |
| Zdroj: | International Journal of Hydrogen Energy. 45:4026-4034 |
| ISSN: | 0360-3199 |
| Popis: | Reforming of hydrocarbon which is an important hydrogen production method proceeds in two steps, i.e. steam reforming and shift reaction. Due to different thermodynamics, the two reactions are conventionally conducted at different temperatures. This study examines one step methane reforming by use of proton-conducting electrochemical cell in combination with a reforming catalyst. Promotion of the reforming reaction was intended by extracting hydrogen via electrochemical hydrogen pumping with a proton conductor cell. In order to compensate for the slow kinetics of the steam reforming, a paper catalyst loaded with Ni was placed in front of the electrochemical cell. Electrolyte support cells were used to verify this concept, and the effect of the electrochemical hydrogen pump was investigated from the composition of the outlet gas. Electrode support cells using a thin film electrolyte was used to reduce overvoltage. It is demonstrated that the steam reforming reaction and the shift reaction take place in one electrochemical cell. Effective catalyst placement and energy efficiency is discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect