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One-pot synthesis of CdS nanocrystals hybridized with single-layer transition-metal dichalcogenide nanosheets for efficient photocatalytic hydrogen evolution

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : One-pot synthesis of CdS nanocrystals hybridized with single-layer transition-metal dichalcogenide nanosheets for efficient photocatalytic hydrogen evolution
นักวิจัย : Chen, Junze , Wu, Xue-Jun , Yin, Lisha , Li, Bing , Hong, Xun , Fan, Zhanxi , Chen, Bo , Xue, Can , Zhang, Hua
คำค้น : DRNTU::Engineering::Materials::Nanostructured materials
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2558
อ้างอิง : Chen, J., Wu, X.-J., Yin, L., Li, B., Hong, X., Fan, Z., et al. (2015). One-pot synthesis of CdS nanocrystals hybridized with single-layer transition-metal dichalcogenide nanosheets for efficient photocatalytic hydrogen evolution. Angewandte chemie International edition, 54(4), 1210-1214. , 1433-7851 , http://hdl.handle.net/10220/25001 , http://dx.doi.org/10.1002/anie.201410172
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Angewandte chemie international edition
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Exploration of low-cost and earth-abundant photocatalysts for highly efficient solar photocatalytic water splitting is of great importance. Although transition-metal dichalcogenides (TMDs) showed outstanding performance as co-catalysts for the hydrogen evolution reaction (HER), designing TMD-hybridized photocatalysts with abundant active sites for the HER still remains challenge. Here, a facile one-pot wet-chemical method is developed to prepare MS2–CdS (M=W or Mo) nanohybrids. Surprisedly, in the obtained nanohybrids, single-layer MS2 nanosheets with lateral size of 4–10 nm selectively grow on the Cd-rich (0001) surface of wurtzite CdS nanocrystals. These MS2–CdS nanohybrids possess a large number of edge sites in the MS2 layers, which are active sites for the HER. The photocatalytic performances of WS2–CdS and MoS2–CdS nanohybrids towards the HER under visible light irradiation (>420 nm) are about 16 and 12 times that of pure CdS, respectively. Importantly, the MS2–CdS nanohybrids showed enhanced stability after a long-time test (16 h), and 70 % of catalytic activity still remained.

บรรณานุกรม :
Chen, Junze , Wu, Xue-Jun , Yin, Lisha , Li, Bing , Hong, Xun , Fan, Zhanxi , Chen, Bo , Xue, Can , Zhang, Hua . (2558). One-pot synthesis of CdS nanocrystals hybridized with single-layer transition-metal dichalcogenide nanosheets for efficient photocatalytic hydrogen evolution.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Chen, Junze , Wu, Xue-Jun , Yin, Lisha , Li, Bing , Hong, Xun , Fan, Zhanxi , Chen, Bo , Xue, Can , Zhang, Hua . 2558. "One-pot synthesis of CdS nanocrystals hybridized with single-layer transition-metal dichalcogenide nanosheets for efficient photocatalytic hydrogen evolution".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Chen, Junze , Wu, Xue-Jun , Yin, Lisha , Li, Bing , Hong, Xun , Fan, Zhanxi , Chen, Bo , Xue, Can , Zhang, Hua . "One-pot synthesis of CdS nanocrystals hybridized with single-layer transition-metal dichalcogenide nanosheets for efficient photocatalytic hydrogen evolution."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2558. Print.
Chen, Junze , Wu, Xue-Jun , Yin, Lisha , Li, Bing , Hong, Xun , Fan, Zhanxi , Chen, Bo , Xue, Can , Zhang, Hua . One-pot synthesis of CdS nanocrystals hybridized with single-layer transition-metal dichalcogenide nanosheets for efficient photocatalytic hydrogen evolution. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2558.