材料科学
甲烷化
光热治疗
金属
化学工程
纳米技术
冶金
催化作用
有机化学
化学
工程类
作者
Xiwen Yu,Di Xue,Yingfang Yao,Wanguo Gao,Cheng Wang,Chengyang Wu,Congping Wu,Bing Wang,Lu Wang,Zhigang Zou
标识
DOI:10.1002/adma.202312942
摘要
Abstract High entropy alloys and metallic glasses, as two typical metastable nanomaterials, have attracted tremendous interest in energy conversion catalysis due to their high reactivity in nonequilibrium states. Herein, we synthesize a novel nanomaterial, layered high entropy metallic glass (HEMG), in a higher energy state than low‐entropy alloys and its crystalline counterpart due to both the disordered elemental and structural arrangements. Specifically, the MnNiZrRuCe HEMG exhibits highly enhanced photothermal catalytic activity and long‐term stability. An unprecedented CO 2 methanation rate of 489 mmol g −1 h −1 at 330 °C is achieved, which is, to our knowledge, the highest photothermal CO 2 methanation rate in flow reactors. The remarkable activity originates from the abundant free volume and high internal energy state of HEMG, which lead to the extraordinary heterolytic H 2 dissociation capacity. The high‐entropy effect also ensures the excellent stability of HEMG for up to 450 hours. Our work not only provides a new perspective on the catalytic mechanism of HEMG, but also sheds light on the great catalytic potential in future carbon‐negative industry. This article is protected by copyright. All rights reserved
科研通智能强力驱动
Strongly Powered by AbleSci AI