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福谷 克之; 吉信 淳*; 山内 美穂*; Shima, T.*; 折茂 慎一*
Catalysis Letters, 152, p.1583 - 1597, 2022/06
被引用回数：13 パーセンタイル：48.54(Chemistry, Physical)Hydrogen is chemically flexible revealing three aspects; protium (H
), proton (H
), and hydride (H
), which are active toward hydrogenation reactions. While the reactivity of protium is characterized by the potential energy at a catalyst surface, electron transfer is of importance as an additional degree of freedom in the reactions with proton and hydride. A promising strategy is to make full use of these active hydrogen species for hydrogenation of stable molecules and achieve chemical transformation of these molecules, which we call "Hydrogenomics". By reviewing recent studies on the hydrogenation of hydrocarbon, carbon dioxide, dinitrogen, and so on using these active hydrogen species on model metal surfaces, nanoscale electrocatalysts, and multimetallic polyhydride clusters, we discuss the fundamental concepts behind the reactions and possible control of the efficient and selective hydrogenation reactions.
Sn and NiSn
for hydrogen production from methanol decompositionFan, M.*; Xu, Y.*; 櫻井 惇也*; 出村 雅彦*; 平野 敏幸*; 寺岡 有殿; 吉越 章隆
Catalysis Letters, 144(5), p.843 - 849, 2014/05
被引用回数：15 パーセンタイル：34.70(Chemistry, Physical)In this study, the catalytic properties of NiSn and NiSn powders were investigated for producing hydrogen from decomposing methanol in the temperatures from 593 to 953 K. The catalytic activities of NiSn and NiSn both increased with increasing temperature, but NiSn showed much higher catalytic activity than NiSn. The results of an isothermal test performed at 873 K revealed that the catalytic activity of NiSn significantly increased with methanol decomposition time, indicating that NiSn was spontaneously activated. NiSn and NiSn both showed a high degree of selectivity and both suppressed side reactions such as methanation and water-gas shift reaction. Surface analysis revealed that fine Ni-Sn particles were formed together with carbon deposited onto the catalyst surface. These Ni-Sn particles were supposed to serve as active sites for methanol decomposition.
