Transformations of Biomass, Its Derivatives, and Downstream Chemicals over Ceria Catalysts
Transformations of Biomass, Its Derivatives, and Downstream Chemicals over Ceria Catalysts
复制标题
二氧化铈催化剂上生物质、其衍生物和下游化学品的转化
DOI：
10.1021/acscatal.0c01900
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发表时间：
2020-08-07
期刊：
影响因子：
12.9
通讯作者：
Wang, Feng
中科院分区：
文献类型：
--
作者：
Lei, Lijun;Wang, Yehong;Wang, Feng
In the past two decades, on account of the energy and environmental crisis brought by the decline in fossil resources, price volatility, and climate change, the high-value utilization of biomass feedstocks has gradually attracted widespread attention. Catalytic conversion of biomass usually involves tandem activation and cleavage of C-C and C-O bonds. Some steps occur in the aqueous phase and demand catalysts of high water resistance. Water-resistant ceria with redox and acid-base synergistic catalytic sites has attracted great interests particularly for biomass upgradation. The reversible Ce3+/Ce4+ redox pairs and the existence of oxygen vacancies improve its redox ability and thus catalytic activity. Besides, the acid-base properties enable its use in acid-base catalytic reactions. The strength or concentration of acid-base sites is tailorable. The water-tolerance character is unique and thus can be employed in the conversion of dilute aqueous biomass solutions. In this Perspective, we summarize the latest research progress in the high-value utilization of biomass feedstocks, including biomass raw materials, platform molecules originated from biomass as well as its derivatives and downstream chemicals over pure CeO2, doped CeO2, and CeO2-supported metal catalysts.
