Journal
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
Volume 89, Issue 10, Pages 1178-1183Publisher
CHEMICAL SOC JAPAN
DOI: 10.1246/bcsj.20160165
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Funding
- Council for Science, Technology and Innovation (CSTI), Cross-ministerial Strategic Innovation Promotion Program (SIP), (JST)
- MEXT Program for Promoting Reform of National Universities
- Grants-in-Aid for Scientific Research [15H05847, 15H03843, 15K13691] Funding Source: KAKEN
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In order to develop an efficient and greener method for organic chemical hydride production in the energy carrier system, the electrocatalytic hydrogenation of toluene to methylcyclohexane was carried out using a proton exchange membrane (PEM) reactor, which generally applied a polymer electrolyte fuel cell and industrial electrolysis technologies. The electrochemical conversion proceeded in high current efficiencies (>90%) under sufficiently mild conditions with various metal-supported catalysts such as Pt/C, Rh/C, Ru/C, and PtRu/C. For example, methylcyclohexane was obtained in 94% current efficiency by the electrochemical hydrogenation of toluene with PtRu/C. Although the current efficiency of the hydrogenation with Pt/C, Rh/C, and Ru/C apparently decreased under high current density conditions due to the side reaction (hydrogen evolution), the hydrogenation with PtRu/C catalysts proceeded in excellent efficiencies even under high current density conditions.
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