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Title: Mechanochemical-Assisted Synthesis of High-Entropy Metal Nitride via a Soft Urea Strategy

Journal Article · · Advanced Materials
 [1];  [2]; ORCiD logo [2];  [3];  [4];  [4];  [4]; ORCiD logo [5]
  1. East China Univ. of Science and Technology, Shanghai (China). State Key Lab. of Chemical Engineering. School of Chemistry and Molecular Engineering; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemistry
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences
  3. Univ. of Puerto Rico, San Juan, PR (United States). Dept. of Chemistry
  4. East China Univ. of Science and Technology, Shanghai (China). State Key Lab. of Chemical Engineering. School of Chemistry and Molecular Engineering
  5. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemistry; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Science Division

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.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); East China Univ. of Science and Technology, Shanghai (China); Energy Frontier Research Centers (EFRC) (United States). Fluid Interface Reactions, Structures and Transport Center (FIRST)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Basic Research Program of China; 111 Project of Ministry of Education of China
Grant/Contract Number:
AC05-00OR22725; 21507030; B08021
OSTI ID:
1462855
Alternate ID(s):
OSTI ID: 1434377
Journal Information:
Advanced Materials, Vol. 30, Issue 23; ISSN 0935-9648
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 312 works
Citation information provided by
Web of Science

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From Highly Purified Boron Nitride to Boron Nitride‐Based Heterostructures: An Inorganic Precursor‐Based Strategy journal September 2019
High‐Entropy Oxides: Fundamental Aspects and Electrochemical Properties journal March 2019
Entropy‐Maximized Synthesis of Multimetallic Nanoparticle Catalysts via a Ultrasonication‐Assisted Wet Chemistry Method under Ambient Conditions journal February 2019
Entropy‐Driven Mechanochemical Synthesis of Polymetallic Zeolitic Imidazolate Frameworks for CO 2 Fixation journal March 2019
Entropy-Driven Mechanochemical Synthesis of Polymetallic Zeolitic Imidazolate Frameworks for CO 2 Fixation journal March 2019
Gassing Behavior of High‐Entropy Oxide Anode and Oxyfluoride Cathode Probed Using Differential Electrochemical Mass Spectrometry journal April 2020
Mechanochemically Assisted Synthesis of Ruthenium Clusters Embedded in Mesoporous Carbon for an Efficient Hydrogen Evolution Reaction journal April 2019
Room‐Temperature Synthesis of High‐Entropy Perovskite Oxide Nanoparticle Catalysts through Ultrasonication‐Based Method journal November 2019
High-entropy ceramics journal February 2020
Morphology-maintaining synthesis of NbN and its catalytic performance in epoxidation journal January 2019
Multi-anionic and -cationic compounds: new high entropy materials for advanced Li-ion batteries journal January 2019
Microwave-assisted depolymerization of various types of waste lignins over two-dimensional CuO/BCN catalysts journal January 2020
Low-temperature synthesis of small-sized high-entropy oxides for water oxidation journal January 2019
First‐principles study, fabrication, and characterization of (Hf 0.2 Zr 0.2 Ta 0.2 Nb 0.2 Ti 0.2 )C high‐entropy ceramic journal January 2019
One‐step synthesis of coral‐like high‐entropy metal carbide powders journal April 2019
Two‐step synthesis process for high‐entropy diboride powders journal September 2019
Gassing Behavior of High‐Entropy Oxide Anode and Oxyfluoride Cathode Probed Using Differential Electrochemical Mass Spectrometry text January 2020
Multi-anionic and -cationic compounds: New high entropy materials for advanced Li-ion batteries other January 2019
High-Entropy Oxides: Fundamental Aspects and Electrochemical Properties text January 2019
Multi-anionic and -cationic compounds: new high entropy materials for advanced Li-ion batteries other January 2019
Computationally aided, entropy-driven synthesis of highly efficient and durable multi-elemental alloy catalysts journal March 2020

Figures / Tables (3)