碳支撑三元纳米催化剂钯-钒-钴在 2,4-二氯苯酚加氢脱氯中的应用

IF 0.6 4区综合性期刊 Q3 MULTIDISCIPLINARY SCIENCES

Chiang Mai Journal of Science Pub Date : 2023-11-30 DOI:10.12982/cmjs.2023.069

Thi Duyen Diep, Thi Yen Nhi Nguyen, T. Co

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引用次数: 0

摘要

超金属纳米催化剂在各种催化应用中具有显著的活性。本文以硼氢化钠和乙二醇为还原剂，通过还原钯钒钴的盐类，包括用金属纳米颗粒胶体溶液（PdVCo/C）浸渍活性炭（AC）基底，成功合成了基于钯钒钴的三元纳米催化剂。通过 XRD、EDX 分析、透射电子显微镜（TEM）和比表面积（BET），证明了三金属 PdVCo 在 AC 上的固定性。其中，透射电子显微镜成像显示，PdVCo 颗粒大小约为 7 纳米。通过气相色谱（FID 检测器）对三金属纳米催化剂在二氯底物加氢脱氯过程中的性能进行了评估。结果表明，在氢氧化钾存在下，PdVCo 纳米催化剂对 2,4-二氯苯酚的转化率超过 91%，而且催化稳定性很高。

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Carbon-supported Ternary Nanocatalyst Palladium-Vanadium-Cobalt for Hydrodechlorination of 2,4-Dichlorophenol

M ultimetallic nanocatalysts have remarkably revealed activities in various catalytic applications. Herein, the ternary nanocatalysts based on palladium-vanadium-cobalt were successfully synthesized through the reduction of their salts with the combination of sodium borohydride and ethylene glycol as reducing agents, including impregnating of activated carbon (AC) substrate with colloid solution of metallic nanoparticles (PdVCo/C). The immobile of trimetallic PdVCo on AC was evidenced by XRD, EDX analysis, transmission electron microscopy (TEM) and specific surface area (BET). Therein, TEM imaging showed that the PdVCo particles size is about 7 nm. The trimetallic nanocatalysts were evaluated in the hydrodechlorination of dichlorinated substrates which was defined by GC (FID detector). The obtained result was that the conversion of 2,4-dichlorophenol was over 91% in the case of PdVCo nano-catalyst in the presence of potassium hydroxide and the high catalytic stability was observed.

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来源期刊

Chiang Mai Journal of Science MULTIDISCIPLINARY SCIENCES-

CiteScore

1.00

自引率

25.00%

发文量

103

审稿时长

3 months

期刊介绍： The Chiang Mai Journal of Science is an international English language peer-reviewed journal which is published in open access electronic format 6 times a year in January, March, May, July, September and November by the Faculty of Science, Chiang Mai University. Manuscripts in most areas of science are welcomed except in areas such as agriculture, engineering and medical science which are outside the scope of the Journal. Currently, we focus on manuscripts in biology, chemistry, physics, materials science and environmental science. Papers in mathematics statistics and computer science are also included but should be of an applied nature rather than purely theoretical. Manuscripts describing experiments on humans or animals are required to provide proof that all experiments have been carried out according to the ethical regulations of the respective institutional and/or governmental authorities and this should be clearly stated in the manuscript itself. The Editor reserves the right to reject manuscripts that fail to do so.