N‐Doped Defective Graphene from Biomass as Catalyst for CO 2  Hydrogenation to Methane | Zendy

Jurca Bogdan | Zendy; Bucur Cristina | Zendy; Primo Ana | Zendy; Concepción Patricia | Zendy; Parvulescu Vasile I. | Zendy; García Hermenegildo | Zendy

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N‐Doped Defective Graphene from Biomass as Catalyst for CO 2 Hydrogenation to Methane

Author(s) -

Jurca Bogdan,

Bucur Cristina,

Primo Ana,

Concepción Patricia,

Parvulescu Vasile I.,

García Hermenegildo

Publication year - 2019

Publication title -

chemcatchem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.497

H-Index - 106

eISSN - 1867-3899

pISSN - 1867-3880

DOI - 10.1002/cctc.201801984

Subject(s) - catalysis , graphene , methane , pyrolysis , doping , chemistry , activation energy , inorganic chemistry , materials science , nanotechnology , organic chemistry , optoelectronics

N‐doped, defective graphene obtained by pyrolysis of chitosan at 900 °C under Ar exhibits catalytic activity for the Sabatier hydrogenation of CO 2 to CH 4 at temperatures about 500 °C with estimated turnover frequencies and activation energy values of 73.17 s −1 and 24.3 kcal×mol −1 , respectively. It has been found that this enhanced catalytic activity compared to other related doped defective graphenes derives from the presence of pyridinic N atoms that adsorbs CO 2 forming carbamate‐type adsorbates.

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