Continuous Synthesis of Hollow High-Entropy Nanoparticles for Energy and Catalysis Applications

Bibliographische Detailangaben
Veröffentlicht in:	Advanced materials (Deerfield Beach, Fla.). - 1998. - 32(2020), 46 vom: 13. Nov., Seite e2002853
1. Verfasser:	Wang, Xizheng (VerfasserIn)
Weitere Verfasser:	Dong, Qi, Qiao, Haiyu, Huang, Zhennan, Saray, Mahmoud Tamadoni, Zhong, Geng, Lin, Zhiwei, Cui, Mingjin, Brozena, Alexandra, Hong, Min, Xia, Qinqin, Gao, Jinlong, Chen, Gang, Shahbazian-Yassar, Reza, Wang, Dunwei, Hu, Liangbing
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2020
Zugriff auf das übergeordnete Werk:	Advanced materials (Deerfield Beach, Fla.)
Schlagworte:	Journal Article catalysis high-entropy alloys hollow structures nanomanufacturing

Beschreibung
Zusammenfassung:	© 2020 Wiley-VCH GmbH. Mixing multimetallic elements in hollow-structured nanoparticles is a promising strategy for the synthesis of highly efficient and cost-effective catalysts. However, the synthesis of multimetallic hollow nanoparticles is limited to two or three elements due to the difficulties in morphology control under the harsh alloying conditions. Herein, the rapid and continuous synthesis of hollow high-entropy-alloy (HEA) nanoparticles using a continuous "droplet-to-particle" method is reported. The formation of these hollow HEA nanoparticles is enabled through the decomposition of a gas-blowing agent in which a large amount of gas is produced in situ to "puff" the droplet during heating, followed by decomposition of the metal salt precursors and nucleation/growth of multimetallic particles. The high active sites per mass ratio of such hollow HEA nanoparticles makes them promising candidates for energy and electrocatalysis applications. As a proof-of-concept, it is demonstrated that these materials can be applied as the cathode catalyst for Li-O2 battery operations with a record-high current density per catalyst mass loading of 2000 mA gcat. -1 , as well as good stability and durable catalytic activity. This work offers a viable strategy for the continuous manufacturing of hollow HEA nanomaterials that can find broad applications in energy and catalysis
Beschreibung:	Date Revised 07.12.2020 published: Print-Electronic Citation Status PubMed-not-MEDLINE
ISSN:	1521-4095
DOI:	10.1002/adma.202002853