层状多孔碳支撑钌催化剂的制备及其在氨硼烷水解制氢中的性能

Q3 Energy

燃料化学学报 Pub Date : 2024-03-01 DOI:10.1016/S1872-5813(23)60385-8

Youhua ZUO , Hui WU , Junfeng HUA , Junning ZHENG , Lixin XU , Mingfu YE , Chao WAN

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引用次数: 0

摘要

本文以煤沥青为碳材料，氯化钠为模板剂，碳酸钾为活化剂，在氩气环境下通过高温煅烧获得了层状多孔碳片（LPCS）。然后，通过浸渍法将活性成分 Ru 负载到 LPCS 载体上，合成了 Ru/LPCS 催化剂，并研究了其在硼烷氨水解制氢过程中的催化性能。结果表明，在有光的条件下，当煅烧温度为 1123 K、Ru 的负载量为 2% 时，翻转频率（TOF）的最大值为 334.8 min-1，是无光条件下的 1.38 倍。在有光的条件下，催化剂的活化能（Ea）从 90.60 kJ/mol 降至 70.33 kJ/mol。硼烷氨浓度的制氢率顺序为 0.75，与催化剂用量呈一阶关系。

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Preparation of layered porous carbon supported ruthenium catalyst and its performance for ammonia borane hydrolyzing to hydrogen

In this paper, layered porous carbon sheet (LPCS) was obtained through high temperature calcination under argon atmosphere by using coal pitch as carbon material, sodium chloride as template agent and potassium carbonate as activator. Then, the active component Ru was loaded onto the LPCS support by impregnation to synthesize Ru/LPCS catalyst whose catalytic performance for hydrogen production by hydrolysis of ammonia borane was studied. The results showed that in the presence of light, the maximum value of the turnover frequency (TOF), 334.8 min^–1, was obtained at a calcination temperature of 1123 K and a loading of 2% of Ru which is 1.38 times higher than that in the absence of light. The activation energy (E_a) of the catalyst decreased from 90.60 to 70.33 kJ/mol in the presence of light. The hydrogen production rate order with respect to ammonia borane concentration was 0.75, which is first-order relation to the amount of the catalyst.

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来源期刊

燃料化学学报 Chemical Engineering-Chemical Engineering (all)

CiteScore

2.80

自引率

0.00%

发文量

5825

期刊介绍： Journal of Fuel Chemistry and Technology (Ranliao Huaxue Xuebao) is a Chinese Academy of Sciences(CAS) journal started in 1956, sponsored by the Chinese Chemical Society and the Institute of Coal Chemistry, Chinese Academy of Sciences(CAS). The journal is published bimonthly by Science Press in China and widely distributed in about 20 countries. Journal of Fuel Chemistry and Technology publishes reports of both basic and applied research in the chemistry and chemical engineering of many energy sources, including that involved in the nature, processing and utilization of coal, petroleum, oil shale, natural gas, biomass and synfuels, as well as related subjects of increasing interest such as C1 chemistry, pollutions control and new catalytic materials. Types of publications include original research articles, short communications, research notes and reviews. Both domestic and international contributors are welcome. Manuscripts written in Chinese or English will be accepted. Additional English titles, abstracts and key words should be included in Chinese manuscripts. All manuscripts are subject to critical review by the editorial committee, which is composed of about 10 foreign and 50 Chinese experts in fuel science. Journal of Fuel Chemistry and Technology has been a source of primary research work in fuel chemistry as a Chinese core scientific periodical.