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Synthesis of Atomically Dispersed Rh Catalysts on Oxide Supports via Strong Electrostatic Adsorption and Characterization by Cryogenic Infrared Spectroscopy

https://doi.org/10.1021/acs.jpcc.2c05426

Asokan, Chithra; Xu, Mingjie; Dai, Sheng; Pan, Xiaoqing; Christopher, Phillip (November 2022, The Journal of Physical Chemistry C)

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Experimental and Theoretical Characterization of Rh Single Atoms Supported on γ-Al ₂ O ₃ with Varying Hydroxyl Contents during NO Reduction by CO

https://doi.org/10.1021/acscatal.2c02813

Hoffman, Alexander J.; Asokan, Chithra; Gadinas, Nicholas; Schroeder, Emily; Zakem, Gregory; Nystrom, Steven V.; Getsoian, Andrew “Bean”; Christopher, Phillip; Hibbitts, David (October 2022, ACS Catalysis)

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Theoretical and Experimental Characterization of Adsorbed CO and NO on γ-Al ₂ O ₃ -Supported Rh Nanoparticles

https://doi.org/10.1021/acs.jpcc.1c05160

Hoffman, Alexander J.; Asokan, Chithra; Gadinas, Nicholas; Kravchenko, Pavlo; Getsoian, Andrew “Bean”; Christopher, Phillip; Hibbitts, David (September 2021, The Journal of Physical Chemistry C)

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Reductant composition influences the coordination of atomically dispersed Rh on anatase TiO ₂

https://doi.org/10.1039/D0CY00146E

Asokan, Chithra; Thang, Ho Viet; Pacchioni, Gianfranco; Christopher, Phillip (March 2020, Catalysis Science & Technology)

Atomically dispersed noble metal catalysts have received recent interest, although the coordination of the metal to the support and how this is influenced by pre-treatment have not often been elucidated. We combine CO FTIR-TPD and DFT to distinguish how catalyst reduction via CO or H 2 influence the local metal coordination and molecular desorption processes.
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Low-Temperature Ammonia Production during NO Reduction by CO Is Due to Atomically Dispersed Rhodium Active Sites

https://doi.org/10.1021/acscatal.0c01249

Asokan, Chithra; Yang, Yang; Dang, Alan; Getsoian, Andrew “Bean”; Christopher, Phillip (May 2020, ACS Catalysis)

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Rh single atoms on TiO2 dynamically respond to reaction conditions by adapting their site

https://doi.org/10.1038/s41467-019-12461-6

Tang, Yan; Asokan, Chithra; Xu, Mingjie; Graham, George W.; Pan, Xiaoqing; Christopher, Phillip; Li, Jun; Sautet, Philippe (December 2019, Nature Communications)

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