Atomically dispersed asymmetric cobalt electrocatalyst for efficient hydrogen peroxide production in neutral media

Autor: Longxiang Liu, Liqun Kang, Jianrui Feng, David G. Hopkinson, Christopher S. Allen, Yeshu Tan, Hao Gu, Iuliia Mikulska, Veronica Celorrio, Diego Gianolio, Tianlei Wang, Liquan Zhang, Kaiqi Li, Jichao Zhang, Jiexin Zhu, Georg Held, Pilar Ferrer, David Grinter, June Callison, Martin Wilding, Sining Chen, Ivan Parkin, Guanjie He

Publikováno v: Nature Communications, Vol 15, Iss 1, Pp 1-11 (2024)

Abstract Electrochemical hydrogen peroxide (H2O2) production (EHPP) via a two-electron oxygen reduction reaction (2e- ORR) provides a promising alternative to replace the energy-intensive anthraquinone process. M-N-C electrocatalysts, which consist o

Externí odkaz: https://doaj.org/article/c096f3e3071b43c7ba019d210dc4cead

Synergistic ultraviolet and visible light photo-activation enables intensified low-temperature methanol synthesis over copper/zinc oxide/alumina

Autor: Bingqiao Xie, Roong Jien Wong, Tze Hao Tan, Michael Higham, Emma K. Gibson, Donato Decarolis, June Callison, Kondo-Francois Aguey-Zinsou, Michael Bowker, C. Richard A. Catlow, Jason Scott, Rose Amal

Publikováno v: Nature Communications, Vol 11, Iss 1, Pp 1-11 (2020)

CO2 to methanol synthesis is a promising approach for renewable fuel production. Here, the authors show that UV and visible light dual activation promotes photothermal methanol production at the copper-zinc oxide interfacial perimeter by accelerating

Externí odkaz: https://doaj.org/article/8deec050745242929167bf109408da42

Monitoring dynamics of defects and single Fe atoms in N-functionalized few-layer graphene by in situ temperature programmed scanning transmission electron microscopy

Autor: June Callison, Takeo Sasaki, Diego Gianolio, Rosa Arrigo, Manfred Erwin Schuster

Publikováno v: Journal of Energy Chemistry. 64:520-530

In this study, we aim to contribute an understanding of the pathway of formation of Fe species during top-down synthesis of dispersed Fe on N-functionalized few layer graphene. We use X-ray absorption spectroscopy to determine the electronic structur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::567a5745394c2693cb23aee249c8b8e1
https://doi.org/10.1016/j.jechem.2021.05.005

Synergistic ultraviolet and visible light photo-activation enables intensified low-temperature methanol synthesis over copper/zinc oxide/alumina

Autor: Michael Bowker, Bingqiao Xie, Donato Decarolis, Kondo-Francois Aguey-Zinsou, C. Richard A. Catlow, Tze Hao Tan, Jason Scott, June Callison, Michael D. Higham, Emma K. Gibson, Roong Jien Wong, Rose Amal

Publikováno v: Nature Communications, Vol 11, Iss 1, Pp 1-11 (2020)
Nature Communications

Although photoexcitation has been employed to unlock the low-temperature equilibrium regimes of thermal catalysis, mechanism underlining potential interplay between electron excitations and surface chemical processes remains elusive. Here, we report

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af037bd08a63d5e65e434adc909d6430
http://link.springer.com/article/10.1038/s41467-020-15445-z

The highly surprising behaviour of diphosphine ligands in iron-catalysed Negishi cross-coupling

Autor: June Callison, Sean A. Davis, Harry M. O'Brien, Robin B. Bedford, Diego Gianolio, Stephen L. J. Luckham, David Elorriaga, Peter P. Wells, Hazel A. Sparkes, Antonis M. Messinis, Oscar Hernandez-Fajardo, Emma K. Gibson

Publikováno v: Messinis, A M, Luckham, S L J, Wells, P P, Gianolio, D, Gibson, E K, O’Brien, H M, Sparkes, H A, Davis, S A, Callison, J, Elorriaga, D, Hernandez-Fajardo, O & Bedford, R B 2019, ' The highly surprising behaviour of diphosphine ligands in iron-catalysed Negishi cross-coupling ', Nature Catalysis, vol. 2, no. 2, pp. 123-133 . https://doi.org/10.1038/s41929-018-0197-z

Iron-catalysed cross-coupling is undergoing explosive development, but mechanistic understanding lags far behind synthetic methodology. Here, we find that the activity of iron–diphosphine pre-catalysts in the Negishi coupling of benzyl halides is s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::50984acfc41253c3b869fbed99717e5f
https://doi.org/10.1038/s41929-018-0197-z