Citation: Jia Xu, Yian Song, Honglu Wu, Jingyue Liu. Probing the catalytic behavior of ZnO nanowire supported Pd₁ single-atom catalyst for selected reactions[J]. Chinese Journal of Catalysis, ;2017, 38(9): 1549-1557. doi: 10.1016/S1872-2067(17)62899-7 shu

Probing the catalytic behavior of ZnO nanowire supported Pd₁ single-atom catalyst for selected reactions

Jia Xu ^a, ,
Yian Song ^a ,
Honglu Wu ^a,b ,
Jingyue Liu ^a

a Department of Physics, Arizona State University, Tempe, Arizona 85287, United States;
b Institue of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China

Received Date: 23 May 2017
Revised Date: 17 August 2017

We have dispersed individual Pd atoms onto ZnO nanowires (NWs) as single-atom catalysts (SACs) and evaluated their catalytic performance for several selected catalytic reactions. The Pd₁/ZnO SAC is highly active, stable, and selective towards CO₂ for steam reforming of methanol to produce hy-drogen. This catalyst system is active for oxidation of CO and H₂ but performs poorly for preferential oxidation of CO in hydrogen-rich stream primarily due to the strong competitive oxidation of H₂ on ZnO supported Pd₁ atoms. At ambient pressure, reverse water-gas-shift reaction occurs on the Pd₁/ZnO SAC. This series of tests of catalytic reactions clearly demonstrate the importance of se-lecting the appropriate metal and support to develop SACs for catalytic transformation of molecules.
- Single-atom catalyst,
- Palladium,
- Znic oxide nanowire,
- Steam reforming of methanol,
- Carbon monoxide oxidation,
- Hydrogenation
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Probing the catalytic behavior of ZnO nanowire supported Pd₁ single-atom catalyst for selected reactions