氟化锂通过低温高氢吸附增强铂催化的氢同位素交换

IF 2.6 4区 材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY ChemNanoMat Pub Date : 2024-06-16 DOI:10.1002/cnma.202400043
Chenxiao Liu, Yongsheng Xu, Jia Ren, Weiyi Liu, Prof. Feng Xin
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引用次数: 0

摘要

氢同位素的催化交换是一种很有前途的核电站循环水净化技术。然而,在低温条件下实现高催化效率和稳定性仍是一项挑战。在这项工作中,我们提出了一种简便的策略,通过在 Pt/Ti3AlC2 (Pt-5-LiF/Ti3AlC2)中引入 LiF 来提高催化剂的效率。加入 LiF 后,催化交换效率高达 92%,翻转频率为 28.1 h-1,是 Pt/Ti3AlC2 的两倍多。结构-活性关系分析表明,LiF 的引入大大提高了催化剂的氢吸附能力,进一步改善了催化剂的性能。此外,这种添加 LiF 的策略也适用于其他铂基催化剂,如 Pt/Al2O3 和 Pt/ 活性炭。这项工作为高效催化氢同位素交换提供了一种新的催化剂设计策略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Lithium Fluoride Enhanced Platinum Catalytic Exchange of Hydrogen Isotopes by High Hydrogen Adsorption at Low Temperature

The catalytic exchange of hydrogen isotopes is a promising technology for purifying recycled water in nuclear power stations. However, it remains a challenge for achieving high catalytic efficiency and stability at low temperatures. In this work, we propose a facile strategy to enhance the catalyst efficiency by introducing LiF in the Pt/Ti3AlC2 (Pt−5-LiF/Ti3AlC2). The incorporation of LiF significantly achieves high catalytic exchange efficiency of 92 % and a turnover frequency of 28.1 h−1, which are more than twice that of Pt/Ti3AlC2. The structure-activity relationship analysis reveals that the introduction of LiF substantially enhanced the hydrogen adsorption capacity of the catalyst and further improved the performance of the catalysts. Moreover, this LiF-added strategy is also applicable to other Pt-based catalysts such as Pt/Al2O3 and Pt/activated carbon. This work provides a novel catalyst design strategy for high-efficiency catalytic exchange of hydrogen isotopes.

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来源期刊
ChemNanoMat
ChemNanoMat Energy-Energy Engineering and Power Technology
CiteScore
6.10
自引率
2.60%
发文量
236
期刊介绍: ChemNanoMat is a new journal published in close cooperation with the teams of Angewandte Chemie and Advanced Materials, and is the new sister journal to Chemistry—An Asian Journal.
期刊最新文献
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