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學年
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111 |
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學期
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1 |
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出版（發表）日期
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2023-01-01 |
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作品名稱
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Au@NiSx Yolk@Shell Nanostructures as Dual‐Functional Electrocatalysts for Concomitant Production of Value‐Added Tartronic Acid and Hydrogen Fuel |
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作品名稱（其他語言）
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著者
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Truong‐Giang Vo, Giang‐Son Tran, Chao‐Lung Chiang, Yan‐Gu Lin, Huai‐En Chang, Hsuan‐Hung Kuo, Chia‐Ying Chiang, Yung‐Jung Hsu |
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單位
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出版者
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著錄名稱、卷期、頁數
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Advanced Functional Materials, 33(4), 2209386 |
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摘要
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Efficient glycerol electrooxidation reaction (GEOR) over gold@nickel sulfide (Au@NiSx) yolk@shell nanostructures is demonstrated, achieving ≈50.4% glycerol conversion at 10 h, 92.6% selectivity toward three-carbon products, and 90.7% total Faradaic efficiency. By regulating the electrode potential, tartronic acid (TART), one of the highest value-added intermediates, can be produced with a selectivity as high as 43.1% and a yield of 45.6 µmol cm−2 h−1. A combination of ex situ microstructural analysis, operando Raman, and operando X-ray absorption measurements reveals a dynamic surface reconstruction course from Au@NiSx to Au@NiSx/NiOOH during the glycerol oxidation process. The unique reconstructed architectures featuring conductive interior NiSx components and active surface high-valence Ni3+ species account for the superior GEOR performance. Further integration of GEOR with hydrogen evolution reaction is realized by employing Au@NiSx as both anode and cathode electrocatalysts in a two-electrode configuration. Concomitantly production of TART and hydrogen fuel is accomplished. This study demonstrates that Au@NiSx not only can convert glycerol to TART with remarkable efficiency and selectivity, but also can produce hydrogen at a moderate level. The findings from this study can facilitate the development of dual-functional electrocatalysts capable of producing high-value products at both the cathode and anode sides. |
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關鍵字
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語言
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en_US |
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ISSN
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期刊性質
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國外 |
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收錄於
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SCI
SSCI
Scopus
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產學合作
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通訊作者
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審稿制度
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1 |
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國別
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USA |
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公開徵稿
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出版型式
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,電子版 |