A photovoltaic-electrolysis system with high solar-to-hydrogen efficiency under practical current densities
學年 113
學期 2
出版（發表）日期 2025-02-26
作品名稱 A photovoltaic-electrolysis system with high solar-to-hydrogen efficiency under practical current densities
作品名稱（其他語言）
著者 Qingran Zhang; Yihao Shan; Jian Pan; Priyank Kumar; Mark J Keevers; John Lasich; Gurpreet Kour; Rahman Daiyan; Ivan Perez-Wurf; Lars Thomsen; Soshan Cheong; Junjie Jiang; Kuang-Hsu Wu; Chao-Lung Chiang; Kristian Grayson; Martin A Green; Rose Amal; Xunyu Lu
單位
出版者
著錄名稱、卷期、頁數 Science Advances 11(9)
摘要 The photovoltaic-alkaline water (PV-AW) electrolysis system offers an appealing approach for large-scale green hydrogen generation. However, current PV-AW systems suffer from low solar-to-hydrogen (STH) conversion efficiencies (e.g., <20%) at practical current densities (e.g., >100 mA cm−2), rendering the produced H2 not economical. Here, we designed and developed a highly efficient PV-AW system that mainly consists of a customized, state-of-the-art AW electrolyzer and concentrator photovoltaic (CPV) receiver. The highly efficient anodic oxygen evolving catalyst, consisting of an iron oxide/nickel (oxy)hydroxide (Fe2O3-NiOxHy) composite, enables the customized AW electrolyzer with unprecedented catalytic performance (e.g., 1 A cm−2 at 1.8 V and 0.37 kgH2/m−2 hour−1 at 48 kWh/kgH2). Benefiting from the superior water electrolysis performance, the integrated CPV-AW electrolyzer system reaches a very high STH efficiency of up to 29.1% (refer to 30.3% if the lead resistance losses are excluded) at large current densities, surpassing all previously reported PV-electrolysis systems.
關鍵字
語言 en_US
ISSN
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 Rose Amal, Xunyu Lu
審稿制度 是
國別 USA
公開徵稿
出版型式 ,電子版
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機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/127376 )

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