DOI: 10.1016/j.scib.2021.04.031
论文题名: An oxidation-nitridation-denitridation approach to transform metal solids into foams with adjustable pore sizes for energy applications
作者: Qin H. ; Zhen C. ; Jia C. ; Yang Z. ; Ye H. ; Cheng H.-M. ; Liu G.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2021
卷: 66, 期: 15 起始页码: 1525
结束页码: 1532
语种: 英语
中文关键词: 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
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 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170373
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
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]. Science Bulletin,2021-01-01,66(15)