Hydrogen Production via Methanol Photocatalysis on Au/Rutile-TiO2 (110)

Li, Fangliang1,2; Chen, Xiao1; Guo, Qing1; Yang, Xueming1,2

2020-12-10

10.1021/acs.jpcc.0c09520

Journal of Physical Chemistry C   影响因子和分区

1932-7447

1932-7455

Obtaining a molecular-level understanding of hydrogen production from alcohols with model catalysts is critical for improving industrial catalytic hydrogen production processes. In this work, hydrogen production from photocatalytic methanol dissociation on an Au/rutile(R)-TiO2 (110) surface has been systematically investigated. With Au clusters on R-TiO2 (110), methanol molecules can easily dissociate into methoxy groups and hydrogen atoms at <150 K. Upon irradiation, the dissociation of methanol and methoxy groups into formaldehyde and hydrogen atoms is most likely to occur at the five-coordinated Ti4+ sites (Ti-sc) far away from the Au clusters. Then, molecular hydrogen production on the Au clusters or at the Au/R-TiO2 (110) interface is accomplished via a thermal activation at <300 K. More importantly, methanol plays a crucial role in hydrogen atom diffusion for efficient hydrogen production. Our findings provide an insightful understanding of hydrogen production from alcohols at a molecular level.

SCI ; EI

英语

第一 ; 通讯

National Key R&D Program of China[2018YFE0203002] ; National Natural Science Foundation of China[21673235] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB17000000] ; Shenzhen Science and Technology Innovation Committee[JCYJ2019080914021660] ; Guangdong Innovative & Entrepreneurial Research Team Program["2019ZT08L455","2019JC01X091"] ; International Partnership Program of Chinese Academy of Science[121421KYSB20170012]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000599610500045

AMER CHEMICAL SOC

20205109657225

Gold ; Methanol ; Titanium dioxide ; Dissociation ; Atoms

Gas Fuels:522 ; Precious Metals:547.1 ; Chemical Reactions:802.2 ; Organic Compounds:804.1 ; Inorganic Compounds:804.2 ; Atomic and Molecular Physics:931.3

Web of Science

1.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Guangdong, Peoples R China
2.Chinese Acad Sci, State Key Lab Mol React Dynam, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China

Li, Fangliang,Chen, Xiao,Guo, Qing,et al. Hydrogen Production via Methanol Photocatalysis on Au/Rutile-TiO2 (110)[J]. Journal of Physical Chemistry C,2020,124(49):26965-26972.

Li, Fangliang,Chen, Xiao,Guo, Qing,&Yang, Xueming.(2020).Hydrogen Production via Methanol Photocatalysis on Au/Rutile-TiO2 (110).Journal of Physical Chemistry C,124(49),26965-26972.

Li, Fangliang,et al."Hydrogen Production via Methanol Photocatalysis on Au/Rutile-TiO2 (110)".Journal of Physical Chemistry C 124.49(2020):26965-26972.