/   Home   /   Newsroom   /   Research News

Scientists Construct Single-Atom Catalyst for Biomass Conversion

Jun 14, 2018     Email"> PrintText Size

A research team led by Prof. WANG Aiqin and Prof. ZHANG Tao in the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences constructed a high-loading Ni-N-C single-atom catalyst (SAC) and applied it to the one-pot cellulose conversion to important polyols (ethylene glycol and acetol). Their findings were published online in Angew. Chem., Int. Ed. and was selected as "hot paper".

Biomass, the most abundant renewable carbon source on the earth, is regarded as an alternative feedstock for the production of fuels and chemicals. However, the highly functionalized feature of biomass molecules necessitates the chemical transformations in liquid phase and often at harsh reaction conditions, such as strong acid/basic media, high temperature and pressures.

Nickel catalysts are usually highly active in the hydrogen-involved biomass conversion reactions. Unfortunately, the vulnerability of nickel catalysts cannot survive under acidic reaction media, a vast barrier for practical applications in biomass transformation. It's necessary to develop a robust and acid-resistant Ni catalyst for hydrogen-assisted biomass valorizations.

 

Scientists Construct Single-Atom Catalyst for Biomass Conversion (Image by LIU Wengang)

Scientists found that M-N-C (M for transition metals typically like Fe, Co, Ni) SACs showed promising performances in various electrochemical reactions and organic synthesis. Benefited from the strong covalent chemical bonding between M and surrounding N atoms, M-N-C SACs might be resistant against acid leaching and heat-induced aggregation.

In contrast to the poor stability of Ni NPs (Nanoparticles) supported on active carbon (Ni/AC), the Ni-N-C SAC exhibited unprecedentedly durability under very harsh reaction conditions (245°C, 60 bar H2, presence of tungstic acid in hot water) and it could be reused for at least 7 times without any deactivation or single atom aggregation.

This work was supported by the National Natural Science Foundation of China, the Strategic Priority Research Program of the Chinese Academy of Sciences, the National Key Projects for Fundamental Research and Development of China.

Attachment:

(Editor: LI Yuan)

Contact

WANG Yongjin

Dalian Institute of Chemical Physics

Phone: 86-411-84374221
E-mail: wangyj@dicp.ac.cn

Related Articles

research instrument;biomass conversion;catalyst

ISSP Researchers develop an Integrated Catalyst Research Instrument Application in Biomass Conversion

Aug 29, 2017

ISSP researchers manage to develop an integrated catalyst research instrument to study and develop specific catalsysts in biomass catalytic conversion, announced by a research group led by Prof. ZHAO Huijun at Institute of Solid State Physics (ISSP), H...

carbon nanotubes; functionalization; carboxyl group; oxygen reduction reaction; biomass conversion

Discovering the Role of Carboxyl Group in Carbon Nanomaterials Catalyzed Reactions

Apr 14, 2015

A cooperation of ZHANG Jian's group and ZHANG Yajie's group from Ningbo Institute of Materials Technology and Engineering of the Chinese Academy of Sciences made a new progress in carbon catalyzed reaction mechanism. They found a pivotal role of carbox...

Contact Us

Copyright © 2002 - Chinese Academy of Sciences