TY - JOUR
T1 - Effects of Mn addition on dehydrogenation of methylcyclohexane over Pt/Al2O3 catalyst
AU - Nakano, Atsushi
AU - Manabe, Shota
AU - Higo, Takuma
AU - Seki, Hirofumi
AU - Nagatake, Satoshi
AU - Yabe, Tomohiro
AU - Ogo, Shuhei
AU - Nagatsuka, Tomomi
AU - Sugiura, Yukihiro
AU - Iki, Hideshi
AU - Sekine, Yasushi
N1 - Funding Information:
A part of this work was supported by Cross-ministerial Strategic Innovation Promotion Program (SIP) ? Energy Carriers project, the Cabinet Office of Japan and JST.
Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2017
Y1 - 2017
N2 - Methylcyclohexane (MCH) is a prospective hydrogen carrier candidate. Although Pt/Al2O3 catalyst shows high conversion for dehydrogenation of MCH at 623 K, methane formation and deactivation caused by coke deposition are issues over the catalyst. Results of this study demonstrate that Mn addition to Pt/Al2O3 brought higher selectivity and stability for dehydrogenation of MCH than with Pt/Al2O3 alone. Although Pt and Mn do not form an alloy structure, Pt and Mn form an adjacent structure, and the unsaturated coordination of Pt which promotes methane formation and deactivation decreased. Pt-Mn/Al2O3 shows high catalytic performance by virtue of the coverage of such sites by MnOx.
AB - Methylcyclohexane (MCH) is a prospective hydrogen carrier candidate. Although Pt/Al2O3 catalyst shows high conversion for dehydrogenation of MCH at 623 K, methane formation and deactivation caused by coke deposition are issues over the catalyst. Results of this study demonstrate that Mn addition to Pt/Al2O3 brought higher selectivity and stability for dehydrogenation of MCH than with Pt/Al2O3 alone. Although Pt and Mn do not form an alloy structure, Pt and Mn form an adjacent structure, and the unsaturated coordination of Pt which promotes methane formation and deactivation decreased. Pt-Mn/Al2O3 shows high catalytic performance by virtue of the coverage of such sites by MnOx.
KW - Dehydrogenation of methylcyclohexane
KW - Methane formation
KW - Mn addition
KW - Organic hydride
KW - Unsaturated coordination of Pt
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U2 - 10.1016/j.apcata.2017.06.017
DO - 10.1016/j.apcata.2017.06.017
M3 - Article
AN - SCOPUS:85021082177
VL - 543
SP - 75
EP - 81
JO - Applied Catalysis A: General
JF - Applied Catalysis A: General
SN - 0926-860X
ER -