Achieving an exceptionally high loading of isolated cobalt single atoms on a porous carbon matrix for efficient visible-light-driven photocatalytic hydrogen production

doi:10.1039/c8sc05540h

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Achieving an exceptionally high loading of isolated cobalt single atoms on a porous carbon matrix for efficient visible-light-driven photocatalytic hydrogen production
	Shi, R ; Tian, CC ; Zhu, X ; Peng, CY ; Mei, BB ; He, L ; Du, XL ; Jiang, Z ; Chen, Y ; Dai, S
刊名	CHEMICAL SCIENCE
	2019
卷号	10 期号:9 页码:2585—2591
关键词	H-2 EVOLUTION CO OXIDATION COCATALYST CATALYSTS OXYGEN SITES ELECTROREDUCTION COORDINATION FRAMEWORKS STRATEGY
ISSN号	2041-6520
DOI	10.1039/c8sc05540h
文献子类	期刊论文
英文摘要	Single-atom catalysts (SACs) have shown great potential in a wide variety of chemical reactions and become the most active new frontier in catalysis due to the maximum efficiency of metal atom use. The key obstacle in preparing SAs lies in the development of appropriate supports that can avoid aggregation or sintering during synthetic procedures. As such, achieving high loadings of isolated SAs is nontrivial and challenging. Conventional methods usually afford the formation of SAs with extremely low loadings (less than 1.5 wt%). In this work, a new in situ preparation strategy that enables the synthesis of isolated cobalt (Co) SAs with an exceptionally high metal loading, up to 5.9 wt%, is developed. The approach is based on a simple one-step pyrolysis of a nitrogen-enriched molecular carbon precursor (1,4,5,8,9,12-hexaazatriphenylene hexacarbonitrile) and CoCl2. Furthermore, due to the successful electron transfer from carbon nitride to the isolated Co SAs, we demonstrate a high-performance photocatalytic H-2 production using Co SAs as a co-catalyst, and the evolution rate is measured to be 1180 mu mol g(-1) h(-1). We anticipate that this new study will inspire the discovery of more isolated SACs with high metal loadings, evidently advancing the development of this emerging type of advanced catalysts.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31455]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Chinese Acad Sci, Tech Inst Phys & Chem, HKU CAS Joint Lab New Mat, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China; 2.Oak Ridge Natl Lab, Chem Sci Div, Oak Ridge, TN 37831 USA; 3.Chinese Acad Sci, Suzhou Res Inst, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Gansu, Peoples R China; 4.Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA; 5.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
推荐引用方式 GB/T 7714	Shi, R,Tian, CC,Zhu, X,et al. Achieving an exceptionally high loading of isolated cobalt single atoms on a porous carbon matrix for efficient visible-light-driven photocatalytic hydrogen production[J]. CHEMICAL SCIENCE,2019,10(9):2585—2591.
APA	Shi, R.,Tian, CC.,Zhu, X.,Peng, CY.,Mei, BB.,...&Dai, S.(2019).Achieving an exceptionally high loading of isolated cobalt single atoms on a porous carbon matrix for efficient visible-light-driven photocatalytic hydrogen production.CHEMICAL SCIENCE,10(9),2585—2591.
MLA	Shi, R,et al."Achieving an exceptionally high loading of isolated cobalt single atoms on a porous carbon matrix for efficient visible-light-driven photocatalytic hydrogen production".CHEMICAL SCIENCE 10.9(2019):2585—2591.