Cooperative desorption of H2O and CO from photo-excited cobalt oxide clusters: The evidence of photo-catalytic coupling

Mei Qi Zhang; Shi Ying Lv; Xiao Na Li; Sheng Gui He

doi:10.1016/j.cplett.2019.01.050

Cooperative desorption of H₂O and CO from photo-excited cobalt oxide clusters: The evidence of photo-catalytic coupling

Mei Qi Zhang
, Shi Ying Lv
, Xiao Na Li^*
, Sheng Gui He

^*Corresponding author for this work

CAS - Institute of Chemistry
University of Chinese Academy of Sciences
Peking University

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The cooperative desorption of H₂O and CO with 100% selectivity from the co-adsorbed cobalt oxide clusters Co_xO_yH₂OCO⁺ [(x,y) = (3,3), (5,7), (6,9), and (9,12)] upon photo excitation at 355 nm was identified by mass spectrometry. In contrast, the sole desorption of CO dominated the mass spectra of Co₃O₃H₂OCO⁺ upon collisional excitation by Xe at a wide range of center-of-mass collisional energies. The experiments and further kinetic modeling proposed the photo-catalytic coupling of H₂O and CO on the cobalt oxide clusters. Combined with theoretical studies, a mechanism for the photo-catalytic coupling of dissociatively adsorbed H₂O and CO is proposed.

Original language	English
Pages (from-to)	72-77
Number of pages	6
Journal	Chemical Physics Letters
Volume	719
DOIs	https://doi.org/10.1016/j.cplett.2019.01.050
Publication status	Published - 16 Mar 2019
Externally published	Yes

Keywords

Carbon monoxide
Mass spectrometry
Photo catalysis
Quantum chemistry calculations
Water

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10.1016/j.cplett.2019.01.050

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@article{f53ef71c2cd24123bf816a259e5ba0b3,

title = "Cooperative desorption of H2O and CO from photo-excited cobalt oxide clusters: The evidence of photo-catalytic coupling",

abstract = "The cooperative desorption of H2O and CO with 100\% selectivity from the co-adsorbed cobalt oxide clusters CoxOyH2OCO+ [(x,y) = (3,3), (5,7), (6,9), and (9,12)] upon photo excitation at 355 nm was identified by mass spectrometry. In contrast, the sole desorption of CO dominated the mass spectra of Co3O3H2OCO+ upon collisional excitation by Xe at a wide range of center-of-mass collisional energies. The experiments and further kinetic modeling proposed the photo-catalytic coupling of H2O and CO on the cobalt oxide clusters. Combined with theoretical studies, a mechanism for the photo-catalytic coupling of dissociatively adsorbed H2O and CO is proposed.",

keywords = "Carbon monoxide, Mass spectrometry, Photo catalysis, Quantum chemistry calculations, Water",

author = "Zhang, \{Mei Qi\} and Lv, \{Shi Ying\} and Li, \{Xiao Na\} and He, \{Sheng Gui\}",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = mar,

day = "16",

doi = "10.1016/j.cplett.2019.01.050",

language = "English",

volume = "719",

pages = "72--77",

journal = "Chemical Physics Letters",

issn = "0009-2614",

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}

TY - JOUR

T1 - Cooperative desorption of H2O and CO from photo-excited cobalt oxide clusters

T2 - The evidence of photo-catalytic coupling

AU - Zhang, Mei Qi

AU - Lv, Shi Ying

AU - Li, Xiao Na

AU - He, Sheng Gui

PY - 2019/3/16

Y1 - 2019/3/16

N2 - The cooperative desorption of H2O and CO with 100% selectivity from the co-adsorbed cobalt oxide clusters CoxOyH2OCO+ [(x,y) = (3,3), (5,7), (6,9), and (9,12)] upon photo excitation at 355 nm was identified by mass spectrometry. In contrast, the sole desorption of CO dominated the mass spectra of Co3O3H2OCO+ upon collisional excitation by Xe at a wide range of center-of-mass collisional energies. The experiments and further kinetic modeling proposed the photo-catalytic coupling of H2O and CO on the cobalt oxide clusters. Combined with theoretical studies, a mechanism for the photo-catalytic coupling of dissociatively adsorbed H2O and CO is proposed.

AB - The cooperative desorption of H2O and CO with 100% selectivity from the co-adsorbed cobalt oxide clusters CoxOyH2OCO+ [(x,y) = (3,3), (5,7), (6,9), and (9,12)] upon photo excitation at 355 nm was identified by mass spectrometry. In contrast, the sole desorption of CO dominated the mass spectra of Co3O3H2OCO+ upon collisional excitation by Xe at a wide range of center-of-mass collisional energies. The experiments and further kinetic modeling proposed the photo-catalytic coupling of H2O and CO on the cobalt oxide clusters. Combined with theoretical studies, a mechanism for the photo-catalytic coupling of dissociatively adsorbed H2O and CO is proposed.

KW - Carbon monoxide

KW - Mass spectrometry

KW - Photo catalysis

KW - Quantum chemistry calculations

KW - Water

UR - https://www.scopus.com/pages/publications/85061447789

U2 - 10.1016/j.cplett.2019.01.050

DO - 10.1016/j.cplett.2019.01.050

M3 - Article

AN - SCOPUS:85061447789

SN - 0009-2614

VL - 719

SP - 72

EP - 77

JO - Chemical Physics Letters

JF - Chemical Physics Letters

ER -

Cooperative desorption of H₂O and CO from photo-excited cobalt oxide clusters: The evidence of photo-catalytic coupling

Abstract

Keywords

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