Dissociation of molecular hydrogen (H2) is extensively studied to understand the mechanism of hydrogenation reactions. In this study, H2 dissociation by Au1-doped closed-shell titanium oxide cluster anions AuTi3O7− and AuTi3O8− has been identified by mass spectrometry and quantum chemistry calculations. The clusters were generated by laser ablation and mass-selected to react with H2 in an ion trap reactor. In the reaction of AuTi3O8− with H2, the ion pair Au+−O22− rather than Au+−O2− is the active site to promote H2 dissociation. This finding is in contrast with the previous result that the lattice oxygen is usually the reactive oxygen species in H2 dissociation. The higher reactivity of the peroxide species is further supported by frontier molecular orbital analysis. This study provides new insights into gold catalysis involving H2 activation and dissociation.
Skip Nav Destination
Article navigation
August 2018
Research Article|
August 01 2018
H2 dissociation by Au1-doped closed-shell titanium oxide cluster anions†
Li-xue Jiang;
Li-xue Jiang
a
State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences
, Beijing 100190, China
b
University of Chinese Academy of Sciences
, Beijing 100049, China
c
Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center of Excellence in Molecular Sciences
, Beijing 100190, China
Search for other works by this author on:
Xiao-na Li;
Xiao-na Li
*
a
State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences
, Beijing 100190, China
c
Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center of Excellence in Molecular Sciences
, Beijing 100190, China
*Authors to whom Correspondence should be addressed. E-mail: lxn@iccas.ac.cn, shengguihe@iccas.ac.cn, Tel.: +86-10-62536990, FAX: +86-10-62559373
Search for other works by this author on:
Zi-yu Li;
Zi-yu Li
a
State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences
, Beijing 100190, China
c
Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center of Excellence in Molecular Sciences
, Beijing 100190, China
Search for other works by this author on:
Hai-fang Li;
Hai-fang Li
a
State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences
, Beijing 100190, China
c
Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center of Excellence in Molecular Sciences
, Beijing 100190, China
Search for other works by this author on:
Sheng-gui He
Sheng-gui He
*
a
State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences
, Beijing 100190, China
b
University of Chinese Academy of Sciences
, Beijing 100049, China
c
Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center of Excellence in Molecular Sciences
, Beijing 100190, China
*Authors to whom Correspondence should be addressed. E-mail: lxn@iccas.ac.cn, shengguihe@iccas.ac.cn, Tel.: +86-10-62536990, FAX: +86-10-62559373
Search for other works by this author on:
*Authors to whom Correspondence should be addressed. E-mail: lxn@iccas.ac.cn, shengguihe@iccas.ac.cn, Tel.: +86-10-62536990, FAX: +86-10-62559373
†
Part of the special issue for celebration of “the 60th Anniversary of University of Science and Technology of China and the 30th Anniversary of Chinese Journal of Chemical Physics”.
Chin. J. Chem. Phys. 31, 457–462 (2018)
Article history
Received:
May 15 2018
Accepted:
July 25 2018
Citation
Li-xue Jiang, Xiao-na Li, Zi-yu Li, Hai-fang Li, Sheng-gui He; H2 dissociation by Au1-doped closed-shell titanium oxide cluster anions. Chin. J. Chem. Phys. 1 August 2018; 31 (4): 457–462. https://doi.org/10.1063/1674-0068/31/cjcp1805107
Download citation file:
Sign in
Don't already have an account? Register
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Sign in via your Institution
Sign in via your InstitutionPay-Per-View Access
$40.00