Recent Advances of Oxygen Carriers for Hydrogen Production via Chemical Looping Water-Splitting
Recent Advances of Oxygen Carriers for Hydrogen Production via Chemical Looping Water-Splitting
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DOI：
10.3390/catal13020279
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发表时间：
2023-01
期刊：
影响因子：
3.9
通讯作者：
Wenxi Chang;Yue Hu;Weibin Xu;Chuande Huang;Haonan Chen;Jia-Meng He;Yujia Han;Yanyan Zhu
中科院分区：
文献类型：
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作者：
Wenxi Chang;Yue Hu;Weibin Xu;Chuande Huang;Haonan Chen;Jia-Meng He;Yujia Han;Yanyan Zhu
氢气是各种工业过程的重要绿色能源和化工原料。目前，主要的制氢技术是蒸汽甲烷重整（SMR），其遭受高能量损失和巨大的CO2排放。作为替代方案，化学链水裂解（CLWS）技术代表了一种节能环保的制氢方法。CLWS的关键在于选择合适的氧载体（OC），这些氧载体具有出色的抗烧结性，结构可逆性，以及释放晶格氧和去除蒸汽用于制氢的能力。本文描述了设计OC的最新进展，包括简单的金属氧化物（例如，Fe、Zn、Ce和Ti基金属氧化物）和复合金属氧化物（例如，钙钛矿、尖晶石和石榴石），重点是决定其氧化还原性能和未来挑战的关键参数。
Hydrogen is an important green energy source and chemical raw material for various industrial processes. At present, the major technique of hydrogen production is steam methane reforming (SMR), which suffers from high energy penalties and enormous CO2 emissions. As an alternative, chemical looping water-splitting (CLWS) technology represents an energy-efficient and environmentally friendly method for hydrogen production. The key to CLWS lies in the selection of suitable oxygen carriers (OCs) that hold outstanding sintering resistance, structural reversibility, and capability to release lattice oxygen and deoxygenate the steam for hydrogen generation. Described herein are the recent advances in designing OCs, including simple metal oxides (e.g., Fe, Zn, Ce, and Ti-based metal oxides) and composite metal oxides (e.g., perovskite, spinel, and garnets), for different CLWS processes with emphasis on the crucial parameters that determine their redox performance and future challenges.