https://scholars.lib.ntu.edu.tw/handle/123456789/598861
標題: | Self-organizing Ag-decorated nanoporous Cu by dealloying process | 作者: | Lee Y.-S Sun Y.-H Cheng I.-C. I-Chung Cheng |
關鍵字: | Copper;Electrochemistry;Microstructure;Nanoporous metals;Sputtering;Aluminum alloys;Binary alloys;Carbon dioxide;Copper alloys;Electrocatalysts;Reduction;Silver alloys;Ternary alloys;Transmission electron microscopy;Catalytic applications;CO 2 reduction;Dealloying;Experimental evidence;Nano-porous;Nanoporous structures;Reduction reaction;Self-organising;Transmission electron | 公開日期: | 2022 | 卷: | 208 | 來源出版物: | Scripta Materialia | 摘要: | The importance of copper-silver boundaries to produce alcohols or other high value products in CO2 reduction reaction has been reported recently, but the details of the copper and silver arrangement in catalytic applications has yet to be revealed clearly. In this work, we demonstrated experimental evidences of migration by transmission electron microscope (TEM) images during dealloying process and after 2 h of CO2 reduction reaction in Ag-decorated nanoporous Cu. In conclusion, the copper and silver from the trinary alloy Cu-Ag-Al would rearrange themselves into nanoporous structure of copper-core decorated with silver after selective dealloying of Al for 15 min, while copper will move to the surface of nanoporous structure after 2 h of CO2 reduction reaction. This work shows a useful assumption of copper and silver migration during the dealloying process and after CO2 reduction reaction in atomic scale, which can provide details of the synthesis of nanoporous Cu-Ag electrocatalysts ? 2021 |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85117752875&doi=10.1016%2fj.scriptamat.2021.114337&partnerID=40&md5=c29a363f8605a51b5e953982c949364b https://scholars.lib.ntu.edu.tw/handle/123456789/598861 |
ISSN: | 13596462 | DOI: | 10.1016/j.scriptamat.2021.114337 |
顯示於: | 機械工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。