Facile and eco-friendly synthesis of porous carbon nanosheets as ideal platform for stabilizing rhodium nanoparticles in efficient hydrolysis of ammonia borane |
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| Affiliation: | 1. College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China;2. College of Chemistry and Chemical Engineering, Mianyang Teachers'' College, Mianyang, 621000, China;1. College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China;2. Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071, China;1. College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, PR China;2. Suzhou Institute of Wuhan University, Suzhou, Jiangsu, 215123, PR China;1. College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, PR China;2. Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education, Sichuan University of Science and Engineering, Zigong, 643000, PR China |
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| Abstract: | Carbon materials have been demonstrated as excellent carriers for preparing supported metal nanocatalysts in catalytic applications. However, numerous chemical activators including strong acids and bases were applied, leading to the entire process dangerous and hazardous. Eco-friendly, economic, and convenient synthesis of carbon materials with desired properties as supports for metal nanoparticle (NP) stabilization to boost performance is important but remains challenging. Here, we developed a facile and eco-friendly strategy to synthesize porous carbon nanosheets (PCNs) with ultrahigh specific surface area (2575.1 m2/g) via pyrolysis the mixture of potassium oxalate and glucose. The resultant PCNs can be used as ideal platform for in-situ distribution of small Rh NPs (Rh/PCNs) as efficient catalysts in hydrogen production from ammonia borane (AB) under ambient conditions. Specifically, Rh/PCNs displayed high activity for AB hydrolysis, with a turnover frequency (TOF) of 513.2 min−1. Small and well-distributed Rh NPs on PCNs with large catalytically active surface atoms are contributed to the high catalytic property of Rh/PCNs for the reaction. Present study has demonstrated that the PCNs is a superior catalyst support for preparing a series of metal NPs in other catalytic applications beyond hydrolysis reaction. |
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| Keywords: | Rhodium Hydrolysis Well-distributed Porous carbon nanosheets Ammonia borane |
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