ACS Nano | Mo2TiC2 MXene负载钌团簇用于高效光热催化逆水煤气转换
时间: 2023-04-19 作者: 浏览次数: 766

题目:

Mo2TiC2 MXene-Supported Ru Clusters for Efficient Photothermal Reverse Water–Gas Shift

作者:

Zhiyi Wu, Jiahui Shen, Chaoran Li*, Chengcheng Zhang, Kai Feng, Zhiqiang Wang, Xuchun Wang, Debora Motta Meira, Mujin Cai, Dake Zhang, Shenghua Wang, Mingyu Chu, Jinxing Chen, Yuyao Xi, Liang Zhang, Tsun-Kong Sham, Alexander Genest, Günther Rupprechter, Xiaohong Zhang*, and Le He*

摘要:

Driving metal-cluster-catalyzed high-temperature chemical reactions by sunlight holds promise for the development of negative-carbon-footprint industrial catalysis, which has yet often been hindered by the poor ability of metal clusters to harvest and utilize the full spectrum of solar energy. Here, we report the preparation of Mo2TiC2 MXene-supported Ru clusters (Ru/Mo2TiC2) with pronounced broadband sunlight absorption ability and high sintering resistance. Under illumination of focused sunlight, Ru/Mo2TiC2 can catalyze the reverse water–gas shift (RWGS) reaction to produce carbon monoxide from the greenhouse gas carbon dioxide and renewable hydrogen with enhanced activity, selectivity, and stability compared to their nanoparticle counterparts. Notably, the CO production rate of MXene-supported Ru clusters reached 4.0 mol·gRu–1·h–1, which is among the best reported so far for photothermal RWGS catalysts. Detailed studies suggest that the production of methane is kinetically inhibited by the rapid desorption of CO from the surface of the Ru clusters.

影响因子:

18.027

分区情况:

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