| 학회 |
한국공업화학회 |
| 학술대회 |
2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
26권 1호 |
| 발표분야 |
포스터-정밀화학 |
| 제목 |
WO3 Nanosheets Coupled with PdO for Promotion of Electrocatalytic Oxygen Reduction Reaction |
| 초록 |
Modulation of the electronic structures of electrocatalysts is aneffective way to improve their electrocatalytic activities. However, strongcoupling between PdO and other metals or metal oxides requires high temperatureannealing and complex processes. Herein, we report a facile chemical approachfor the synthesis of WO3 nanosheets bearing PdO nanoclusters (PdO@WO3Sx)as an electrocatalyst to accelerate ORR in Zin-airbatteries. WO3 nanosheets were directly converted from metallic WS2nanosheets through the spontaneous formation and deposition of PdO nanoclustersin water under mild conditions (1 h, 50oC), producing PdO@WO3Sxhybrid structures. Strong coupling of PdO to WO3 nanosheets wasconfirmed by experiments and computational simulations, causing shifts in the d-bandcenters of the hybrids. As-prepared PdO@WO3Sx exhibitedexcellent performance for electrocatalytic ORR underbasic conditions, compared to commercial Pt/C electrocatalysts. |
| 저자 |
이준형1, 신재훈1, 강태욱1, 이치호2, 주종민1, 이상욱1, 김종호1
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| 소속 |
1한양대, 2Texas A&M Univ. |
| 키워드 |
nanohybrid electrocatalyst; WO3 nanosheet; palladium nanocluster; ORR
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| E-Mail |
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