期刊論文

學年 113
學期 1
出版（發表）日期 2024-08-19
作品名稱 Molecularly engineered potential of d-orbital modulated iron-bridged delaminated MBene for rechargeable Zn-Air batteries
作品名稱（其他語言）
著者 Seung Woong Nam; Thanh Hai Nguyen; Duy Thanh Tran; Van An Dinh; Thi Thuy Nga Ta; Chung-Li Dong; Nam Hoon Kim; Joong Hee Lee
單位
出版者
著錄名稱、卷期、頁數 Energy & Environmental Science 17(18), p.6559-6570
摘要 An air cathode with high catalytic activity and reversibility toward the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) is designed using an engineered Fe d-orbital strategy through the typical coordinations of iron phthalocyanine molecule (FeMc) crystals on delaminated MoAl1−xB MBene sheets (FeMc–MoAl1−xB). The hybridization induces unique electronic guest–host interactions with significant charge donation by MoAl1−xB, resulting in remarkable regulation of the Fe3d charge delocalization and spin-state Fe(II) ion transition, thereby optimizing the adsorption/desorption of oxygenated intermediates with a balanced *OOH–*O transformation for simultaneously boosting both ORR and OER kinetics with high reversibility. FeMc–MoAl1−xB achieves a remarkable OER overpotential of 0.356 V at 10 mA cm−2 while exhibiting a favorable half-wave potential of 0.862 V for the ORR in an alkaline electrolyte. An aqueous Zn–air battery (ZAB) assembled with an FeMc–MoAl1−xB air cathode demonstrates a high peak power density of 168.2 mW cm−2 and a long cycling durability of 800 h, overperforming the (Pt/C + RuO2) counterpart. These findings highlight the significance of such novel efficient air–cathode catalysts by performing electronic structure engineering of FeMc with MoAl1−xB to develop rechargeable ZAB devices with enhanced performance and cost effectiveness.
關鍵字
語言 en
ISSN 1754-5692; 1754-5706
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 是
國別 GBR
公開徵稿
出版型式 ,電子版,紙本
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機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/127613 )