氨硼烷
脱氢
催化作用
碳化
碳纤维
纳米颗粒
化学工程
材料科学
钌
粒径
金属
硼烷
无机化学
吸附
化学
纳米技术
有机化学
复合数
冶金
复合材料
工程类
作者
Wei Cheng,Xue Zhao,Wenjie Luo,Yun Zhang,Yi Wang,Guangyin Fan
出处
期刊:ChemNanoMat
[Wiley]
日期:2020-06-22
卷期号:6 (8): 1251-1259
被引量:25
标识
DOI:10.1002/cnma.202000215
摘要
Abstract Recently, metal nanoparticles (NPs) have been investigated widely as heterogeneous catalysts in the hydrolysis of ammonia borane (AB). However, the method is severely challenged by the dispersion and particle size of metal NPs, and needs efficient carbon materials as supports. Herein, we describe a facile two‐step synthesis strategy that takes advantage of hydrothermal synthesis and solid‐phase carbonization to fabricate N‐doped bagasse‐derived carbon materials (BC‐hs). The Ru particles can disperse well on the BC‐hs carbon matrix to form Ru/BC‐hs catalyst. It is found that the Ru/BC‐hs catalyst, under optimized conditions (3.5 wt% Ru loading), shows a high performance for the catalytic dehydrogenation of AB, with a TOF of 354 mol H 2 (mol Ru min) −1 . The high catalytic performance of Ru/BC‐hs may be ascribed to the large surface area of BC‐hs (2250 m 2 /g) with abundant surface nitrogen and oxygen species, and more catalytically active Ru atoms are provided with the fine‐grained and uniformly distributed Ru NPs. This study exhibits a universal method to design and prepare high‐performance dehydrogenation catalysts, in which metal NPs are supported on biomass‐derived carbon from a highly recyclable and available plant.
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