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Advanced MaterialsVolume 30, Issue 23 1707512 Communication Mechanochemical-Assisted Synthesis of High-Entropy Metal Nitride via a Soft Urea Strategy Tian Jin, Tian Jin State Key Laboratory of Chemical Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237 China Department of Chemistry, The University of Tennessee, Knoxville, Knoxville, TN, 37996 USASearch for more papers by this authorXiahan Sang, Xiahan Sang Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831 USASearch for more papers by this authorRaymond R. Unocic, Raymond R. Unocic orcid.org/0000-0002-1777-8228 Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831 USASearch for more papers by this authorRichard T. Kinch, Richard T. Kinch Department of Chemistry, University of Puerto Rico, Rio Piedras Campus, San Juan, PR, 00931 USASearch for more papers by this authorXiaofei Liu, Xiaofei Liu State Key Laboratory of Chemical Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237 ChinaSearch for more papers by this authorJun Hu, Jun Hu State Key Laboratory of Chemical Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237 ChinaSearch for more papers by this authorHonglai Liu, Honglai Liu State Key Laboratory of Chemical Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237 ChinaSearch for more papers by this authorSheng Dai, Corresponding Author Sheng Dai dais@ornl.gov orcid.org/0000-0002-8046-3931 Department of Chemistry, The University of Tennessee, Knoxville, Knoxville, TN, 37996 USA Chemical Science Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831 USAE-mail: dais@ornl.govSearch for more papers by this author Tian Jin, Tian Jin State Key Laboratory of Chemical Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237 China Department of Chemistry, The University of Tennessee, Knoxville, Knoxville, TN, 37996 USASearch for more papers by this authorXiahan Sang, Xiahan Sang Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831 USASearch for more papers by this authorRaymond R. Unocic, Raymond R. Unocic orcid.org/0000-0002-1777-8228 Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831 USASearch for more papers by this authorRichard T. Kinch, Richard T. Kinch Department of Chemistry, University of Puerto Rico, Rio Piedras Campus, San Juan, PR, 00931 USASearch for more papers by this authorXiaofei Liu, Xiaofei Liu State Key Laboratory of Chemical Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237 ChinaSearch for more papers by this authorJun Hu, Jun Hu State Key Laboratory of Chemical Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237 ChinaSearch for more papers by this authorHonglai Liu, Honglai Liu State Key Laboratory of Chemical Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237 ChinaSearch for more papers by this authorSheng Dai, Corresponding Author Sheng Dai dais@ornl.gov orcid.org/0000-0002-8046-3931 Department of Chemistry, The University of Tennessee, Knoxville, Knoxville, TN, 37996 USA Chemical Science Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831 USAE-mail: dais@ornl.govSearch for more papers by this author First published: 24 April 2018 https://doi.org/10.1002/adma.201707512Citations: 163Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract Crystalline high-entropy ceramics (CHC), a new class of solids that contain five or more elemental species, have attracted increasing interest because of their unique structure and potential applications. Up to now, only a couple of CHCs (e.g., high-entropy metal oxides and diborides) have been successfully synthesized. Here, a new strategy for preparing high-entropy metal nitride (HEMN-1) is proposed via a soft urea method assisted by mechanochemical synthesis. The as-prepared HEMN-1 possesses five highly dispersed metal components, including V, Cr, Nb, Mo, Zr, and simultaneously exhibits an interesting cubic crystal structure of metal nitrides. By taking advantage of these unique features, HEMN-1 can function as a promising candidate for supercapacitor applications. A specific capacitance of 78 F g−1 is achieved at a scan rate of 100 mV s−1 in 1 m KOH. In addition, such a facile synthetic strategy can be further extended to the fabrication of other types of HEMNs, paving the way for the synthesis of HEMNs with attractive properties for task-specific applications. Citing Literature Supporting Information Filename Description adma201707512-sup-0001-S1.pdf436.6 KB Supplementary Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article. Volume30, Issue23June 6, 20181707512 RelatedInformation
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