气候变化领域集成服务门户(CCPortal): An oxidation-nitridation-denitridation approach to transform metal solids into foams with adjustable pore sizes for energy applications

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DOI	10.1016/j.scib.2021.04.031
	An oxidation-nitridation-denitridation approach to transform metal solids into foams with adjustable pore sizes for energy applications
	Qin H.; Zhen C.; Jia C.; Yang Z.; Ye H.; Cheng H.-M.; Liu G.
发表日期	2021
ISSN	20959273
起始页码	1525
结束页码	1532
卷号	66 期号:15
英文摘要	Metal foams with hierarchically porous structures are highly desirable in energy applications as active materials or their host substrates. However, conventional preparation methods usually have a quite limited flexibility of adjusting pore size of metal foams. Herein, an alternative new method based on gaseous thermal oxidation-nitridation-denitridation processes was developed to prepare metal (copper and nickel) foams with adjustable pore size by controlling the thermal nitridation temperature. Moreover, this environment-friendly method is independent of the shape of starting pure metal substrates and can be repeatedly applied to the metal substrates to create hierarchical porous structures containing different size pores. As a demonstration of the advantages of the resultant foams with abundant pores by this method, compared with its starting material (commercial Ni foam with the pore size of several millimeters), the resultant hierarchical porous Ni foam gives the remarkably enhanced performance of electrochemical water splitting as HER/OER electrodes and electrochemical energy storage as the host substrate of capacitive material MnO2. The metal foams with adjustable pore size prepared by the developed method will find a wide range of important applications in energy storage and conversion areas. © 2021 Science China Press
关键词	Electrocatalytic water splitting Hierarchically porous structures Metal foams Supercapacitor
英文关键词	Aluminum nitride; Energy storage; Manganese oxide; Metal foams; Nickel; Pore size; Substrates; Thermooxidation; Active material; Adjustable pore size; Electrocatalytic water splitting; Energy applications; Hierarchically porous; Hierarchically porous structure; Metal foams; Metal substrate; Ni foam; Porous structures; Supercapacitor
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207539
作者单位	Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China; Low-Dimensional Material and Device Laboratory, Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, Shenzhen, 518055, China
推荐引用方式 GB/T 7714	Qin H.,Zhen C.,Jia C.,et al. An oxidation-nitridation-denitridation approach to transform metal solids into foams with adjustable pore sizes for energy applications[J],2021,66(15).
APA	Qin H..,Zhen C..,Jia C..,Yang Z..,Ye H..,...&Liu G..(2021).An oxidation-nitridation-denitridation approach to transform metal solids into foams with adjustable pore sizes for energy applications.Science Bulletin,66(15).
MLA	Qin H.,et al."An oxidation-nitridation-denitridation approach to transform metal solids into foams with adjustable pore sizes for energy applications".Science Bulletin 66.15(2021).