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Cu? Cluster Doped Monolayer MoS? for CO Oxidation.

ABSTRACT: The catalytic oxidation of CO molecule on a thermodynamically stable Cu4 cluster doped MoS2 monolayer is investigated by density functional theory (DFT) where the reaction proceeds in a new formation order of COOOCO* (O2*?+?2CO*???COOOCO*), OCO* (COOOCO*???CO2?+?OCO*), and CO2 (OCO*???CO2) desorption with the corresponding reaction barrier values of 0.220?eV, 0.370?eV and 0.119?eV, respectively. Therein, the rate-determining step is the second one. This low barrier indicates high activity of this system where CO oxidation could be realized at room temperature (even lower). As a result, the Cu4 doped MoS2 could be a candidate for CO oxidation with lower cost and higher activity without poisoning and corrosion problems.

SUBMITTER: Chen ZW

PROVIDER: S-EPMC4459236 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature

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Cu₄ Cluster Doped Monolayer MoS₂ for CO Oxidation.

Chen Z W ZW Yan J M JM Zheng W T WT Jiang Q Q

Scientific reports 20150608

The catalytic oxidation of CO molecule on a thermodynamically stable Cu4 cluster doped MoS2 monolayer is investigated by density functional theory (DFT) where the reaction proceeds in a new formation order of COOOCO* (O2* + 2CO* → COOOCO*), OCO* (COOOCO* → CO2 + OCO*), and CO2 (OCO* → CO2) desorption with the corresponding reaction barrier values of 0.220 eV, 0.370 eV and 0.119 eV, respectively. Therein, the rate-determining step is the second one. This low barrier indicates high activity of thi ...[more]

PMID: 26052674

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