Journal article
Yeonsu Kwak, Yu-Jin Lee, Seongeun Moon, Kimoon Lee, Safira Ramadhani, Euirim On, Chang-il Ahn, Son-Jong Hwang, Hyuntae Sohn, Hyangsoo Jeong, S. Nam, Chang Won Yoon, Yongmin Kim
Angewandte Chemie, 2024
Angewandte Chemie, 2024
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APA
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Kwak, Y., Lee, Y.-J., Moon, S., Lee, K., Ramadhani, S., On, E., … Kim, Y. (2024). Scalable Atomic-Layer Tailoring of Abundant Oxide Supports Unlocks Superior Interfaces for Low-Metal-Loading Dehydrogenation. Angewandte Chemie.
Chicago/Turabian
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Kwak, Yeonsu, Yu-Jin Lee, Seongeun Moon, Kimoon Lee, Safira Ramadhani, Euirim On, Chang-il Ahn, et al. “Scalable Atomic-Layer Tailoring of Abundant Oxide Supports Unlocks Superior Interfaces for Low-Metal-Loading Dehydrogenation.” Angewandte Chemie (2024).
MLA
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Kwak, Yeonsu, et al. “Scalable Atomic-Layer Tailoring of Abundant Oxide Supports Unlocks Superior Interfaces for Low-Metal-Loading Dehydrogenation.” Angewandte Chemie, 2024.
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@article{yeonsu2024a,
title = {Scalable Atomic-Layer Tailoring of Abundant Oxide Supports Unlocks Superior Interfaces for Low-Metal-Loading Dehydrogenation.},
year = {2024},
journal = {Angewandte Chemie},
author = {Kwak, Yeonsu and Lee, Yu-Jin and Moon, Seongeun and Lee, Kimoon and Ramadhani, Safira and On, Euirim and Ahn, Chang-il and Hwang, Son-Jong and Sohn, Hyuntae and Jeong, Hyangsoo and Nam, S. and Yoon, Chang Won and Kim, Yongmin}
}
Abstract
Liquid organic hydrogen carriers (LOHCs) offer a promising solution for global hydrogen infrastructure, but their practical application faces two key challenges: sluggish dehydrogenation processes and the reliance on catalysts with high noble metal loadings. This study presents a scalable approach to reduce noble metal usage while maintaining high catalytic activity. We synthesized an ultralow Pt content (0.1 wt%) catalyst using γ-Al2O3-based pellet support with atomic layer deposition (ALD) of TiO2. Advanced characterization techniques reveal that the thin ALD-TiO2 shell provides a heterogeneous interface, confining electronically rich Pt-nanoparticle ensembles. The catalyst outperforms both equivalent Pt-content catalysts and a commercial 0.5 wt% Pt/γ-Al2O3 catalyst in homocyclic LOHC dehydrogenation. This study provides insights into the beneficial role of ALD-engineered interfaces for catalytic supports and offers an efficient approach for scalable production of low-noble-metal-content catalysts, with implications for various catalytic processes.