Synthesis Pd/biomass-based carbon microsheet composite for efficient dehydrogenation from formic acid

•Carbonized microtubes of poplar catkins were crushed into microsheets.•Pd particles are highly dispersed on the microsheets.•The nanocomposite can be used for catalytic dehydrogenation from formic acid. In present work, poplar catkin with microtube structure was carbonized at 800 °C in N2 and subse...

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Bibliographic Details
Published in:Materials letters 2019-02, Vol.237, p.61-64
Main Authors: Shi, Ying, Xiang, Zhongqing, Deng, Jiawei, Nan, Jixing, Zhang, Bing
Format: Article
Language:English
Subjects:
Carbon microsheet
Catalysis
Chemical synthesis
Composite materials
Dehydrogenation
Formic acid
Hydrogen storage
Materials science
Nanoparticles
Palladium
Poplar
Poplar catkins
Reproducibility
Selectivity
Substrates
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Summary:•Carbonized microtubes of poplar catkins were crushed into microsheets.•Pd particles are highly dispersed on the microsheets.•The nanocomposite can be used for catalytic dehydrogenation from formic acid. In present work, poplar catkin with microtube structure was carbonized at 800 °C in N2 and subsequently the carbonized microtubes were broken into microsheets by ultrasonic crushing. The palladium nanoparticles (NPs) were highly dispersed on the microsheets to form Pd/carbonized poplar catkin (Pd/CPC) composite. The synthesized composite showed extraordinary catalytic performance with high initial turnover frequency of 1613 molH2/(molmetal·h) for formic acid (FA) dehydrogenation. The composite also exhibited high selectivity, good stability and reproducibility during the catalytic process. These results indicate that Pd/CPC nanocatalyst has particular potential for hydrogenation reactions from hydrogen-rich substrates in practical applications.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2018.11.074