气候变化领域集成服务门户(CCPortal): A general route via formamide condensation to prepare atomically dispersed metal-nitrogen-carbon electrocatalysts for energy technologies

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DOI	10.1039/c9ee00162j
	A general route via formamide condensation to prepare atomically dispersed metal-nitrogen-carbon electrocatalysts for energy technologies
	Zhang G.; Jia Y.; Zhang C.; Xiong X.; Sun K.; Chen R.; Chen W.; Kuang Y.; Zheng L.; Tang H.; Liu W.; Liu J.; Sun X.; Lin W.-F.; Dai H.
发表日期	2019
ISSN	1754-5692
起始页码	1317
结束页码	1325
卷号	12 期号:4
英文摘要	Single-atom electrocatalysts (SAECs) have gained tremendous attention due to their unique active sites and strong metal-substrate interactions. However, the current synthesis of SAECs mostly relies on costly precursors and rigid synthetic conditions and often results in very low content of single-site metal atoms. Herein, we report an efficient synthesis method to prepare metal-nitrogen-carbon SAECs based on formamide condensation and carbonization, featuring a cost-effective general methodology for the mass production of SAECs with high loading of atomically dispersed metal sites. The products with metal inclusion were termed as formamide-converted metal-nitrogen-carbon (shortened as f-MNC) materials. Seven types of single-metallic f-MNC (Fe, Co, Ni, Mn, Zn, Mo and Ir), two bi-metallic (ZnFe and ZnCo) and one tri-metallic (ZnFeCo) SAECs were synthesized to demonstrate the generality of the methodology developed. Remarkably, these f-MNC SAECs can be coated onto various supports with an ultrathin layer as pyrolysis-free electrocatalysts, among which the carbon nanotube-supported f-FeNC and f-NiNC SAECs showed high performance for the O2 reduction reaction (ORR) and the CO2 reduction reaction (CO2RR), respectively. Furthermore, the pyrolysis products of supported f-MNC can still render isolated metallic sites with excellent activity, as exemplified by the bi-metallic f-FeCoNC SAEC, which exhibited outstanding ORR performance in both alkaline and acid electrolytes by delivering ∼70 and ∼20 mV higher half-wave potentials than that of commercial 20 wt% Pt/C, respectively. This work offers a feasible approach to design and manufacture SAECs with tuneable atomic metal components and high density of single-site metal loading, and thus may accelerate the deployment of SAECs for various energy technology applications. © 2019 The Royal Society of Chemistry.
语种	英语
scopus关键词	Amides; Atoms; Binary alloys; Carbon nanotubes; Carbonization; Cobalt alloys; Condensation; Cost effectiveness; Electrocatalysts; Electrolysis; Iridium alloys; Iron alloys; Pyrolysis; Yarn; Zinc alloys; Acid electrolytes; Design and manufactures; Efficient synthesis; Energy technologies; General methodologies; Half-wave potential; Pyrolysis products; Synthetic conditions; Metals; carbon; catalyst; condensation; electrokinesis; energy efficiency; metal; methodology; nitrogen
来源期刊	Energy and Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162914
作者单位	State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China; Shandong University of Science and Technology, Electrical Engineering and Automation, Tsingtao, 266590, China; College of Energy, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China; Department of Materials, Beijing Institute of Technology, Beijing, 100081, China; Department of Chemistry, Stanford University, Stanford, CA 94305-5080, United States; Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China; State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China; Department of Chemical Engineering, Loughborough University, Loughborough, Leicestershire, LE11 3TU, United Kingdom
推荐引用方式 GB/T 7714	Zhang G.,Jia Y.,Zhang C.,et al. A general route via formamide condensation to prepare atomically dispersed metal-nitrogen-carbon electrocatalysts for energy technologies[J],2019,12(4).
APA	Zhang G..,Jia Y..,Zhang C..,Xiong X..,Sun K..,...&Dai H..(2019).A general route via formamide condensation to prepare atomically dispersed metal-nitrogen-carbon electrocatalysts for energy technologies.Energy and Environmental Science,12(4).
MLA	Zhang G.,et al."A general route via formamide condensation to prepare atomically dispersed metal-nitrogen-carbon electrocatalysts for energy technologies".Energy and Environmental Science 12.4(2019).