caa a22 4500 475843835 CHVBK 20180406123908.0 cr unu---uuuuu 170329e20001201xx s 000 0 eng 10.1023/A:1009079605189 doi (NATIONALLICENCE)springer-10.1023/A:1009079605189 In situ STM study of surface catalytic reactions on TiO2(110) relevant to catalyst design [Elektronische Daten] [Yasuhiro Iwasawa, Hiroshi Onishi, Ken-ichi Fukui] This paper briefly summarizes our recent work on the characterization of atom-resolved surface images of TiO2(110) composed of Ti atoms, O atoms, defects and hydroxyls by scanning tunneling microscopy (STM) and non-contact atomic force microscopy (NC-AFM). The paper also presents new kinetic aspects in the catalytic dehydration and dehydrogenation of formic acid on the characterized surface. Switchover of the reaction path from the dehydration to the dehydrogenation occurred by the presence of formic acid undetectable at the surface, where acidic formic acid molecules opened the basic catalysis. In situ STM observation revealed that the dehydrogenation reaction at 400-450 K was strongly suppressed in the vicinity of single-atom height steps. The suppressive effect of step ranged over 2.4 nm into terrace. It is likely that the catalyst with flat surfaces larger than 5 nm is active for the dehydrogenation of formic acid. Plenum Publishing Corporation, 2000 scanning tunneling microscopy (STM) nationallicence non-contact atomic force microscopy (AFM) nationallicence surface structures nationallicence catalytic reaction mechanisms nationallicence formic acid nationallicence TiO2(110) nationallicence Iwasawa Yasuhiro Department of Chemistry, Graduate School of Science, The University of Tokyo, 113-0033, Hongo, Bunkyo-ku, Tokyo, Japan aut Onishi Hiroshi Department of Chemistry, Graduate School of Science, The University of Tokyo, 113-0033, Hongo, Bunkyo-ku, Tokyo, Japan aut Fukui Ken-ichi Department of Chemistry, Graduate School of Science, The University of Tokyo, 113-0033, Hongo, Bunkyo-ku, Tokyo, Japan aut Topics in Catalysis Kluwer Academic Publishers-Plenum Publishers 14/1-4(2000-12-01), 163-172 1022-5528 14:1-4<163 2000 14 11244 https://doi.org/10.1023/A:1009079605189 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1009079605189 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Iwasawa Yasuhiro Department of Chemistry, Graduate School of Science, The University of Tokyo, 113-0033, Hongo, Bunkyo-ku, Tokyo, Japan aut NATIONALLICENCE 700 1- Onishi Hiroshi Department of Chemistry, Graduate School of Science, The University of Tokyo, 113-0033, Hongo, Bunkyo-ku, Tokyo, Japan aut NATIONALLICENCE 700 1- Fukui Ken-ichi Department of Chemistry, Graduate School of Science, The University of Tokyo, 113-0033, Hongo, Bunkyo-ku, Tokyo, Japan aut NATIONALLICENCE 773 0- Topics in Catalysis Kluwer Academic Publishers-Plenum Publishers 14/1-4(2000-12-01), 163-172 1022-5528 14:1-4<163 2000 14 11244 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer