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@ARTICLE{MacArthur:1048104,
author = {MacArthur, Katherine E. and Gonçalves, Liliana P. L. and
Sousa, Juliana P. S. and Soares, O. Salomé G. P. and Kungl,
Hans and Jodat, Eva and Karl, André and Heggen, Marc and
Dunin-Borkowski, Rafal E. and Basak, Shibabrata and Eichel,
Rüdiger-A. and Kolen'ko, Yury V. and Pereira, M. Fernando
R.},
title = {{C}arbon-supported {N}i nanoparticles in {CO} 2
methanation: role of a superficial {N}i{O} shell observed by
in situ {TEM}},
journal = {Industrial chemistry $\&$ materials},
volume = {NA},
issn = {2755-2608},
address = {Cambridge},
publisher = {Royal Society of Chemistry},
reportid = {FZJ-2025-04496},
pages = {NA},
year = {2025},
abstract = {CO2 methanation offers a pathway to produce a
carbon-neutral methane fuel. Although a number of research
efforts have been conducted on this topic, a greater
understanding of the mechanism of the reaction, which is
still under debate, is needed. Here, using in situ
transmission electron microscopy, we provide direct insights
into the dynamics of a metallic nickel catalyst supported on
activated carbon during CO2 methanation. The keys to the
high performance of the catalyst are the in situ formation
and dynamic behavior of a Ni@NiO core@shell nanostructure.
Based on the detailed electron microscopy investigation, the
mechanism of such nanostructure formation during methanation
is proposed. Our studies revealed that the deactivation of
the catalyst is not due to the accumulation of carbon coke
over nickel nanoparticles, but an increase in the size of
the nickel nanoparticles that is responsible for the
deactivation of the catalyst over time.},
cin = {IET-1 / ER-C-1},
ddc = {670},
cid = {I:(DE-Juel1)IET-1-20110218 / I:(DE-Juel1)ER-C-1-20170209},
pnm = {1231 - Electrochemistry for Hydrogen (POF4-123)},
pid = {G:(DE-HGF)POF4-1231},
typ = {PUB:(DE-HGF)16},
doi = {10.1039/D5IM00033E},
url = {https://juser.fz-juelich.de/record/1048104},
}