Atomically Precise Platinum Nanocluster Catalysts for Efficient Hydrogen Production via Methylcyclohexane Dehydrogenation
4 affiliations
- 1Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Sendai, Japan, 980-8577
- 2Carbon Value Research Center, Research Institute for Science and Technology
- 3Tokyo University of Science
- 4Department of Chemistry, Keio University, 3-14-1 Hiyoshi, Kohoku-Ku, Yokohama, Japan, 223-8522
Abstract
In hydrogen storage technologies with liquid organic hydrogen carriers, the development of efficient catalysts for methylcyclohexane dehydrogenation is highly important. In this study, we developed atomically precise platinum nanocluster catalysts supported on Al2O3 (Ptx/Al2O3; x = 17, ~51). Comprehensive characterization demonstrated that the catalysts remained highly monodisperse and of uniform particle size (0.86 or 1.15 nm), and maintained a cationic electronic state (Ptδ+) even after thermal treatment. Remarkably, the Pt17/Al2O3 and Pt~51/Al2O3 catalysts exhibited a mass activity up to 7.9 and 8.2 times higher than that of conventional nanoparticle catalysts. Furthermore, by effectively suppressing undesirable cracking pathways at a low operating temperature of 250 °C, the catalyst achieved both high selectivity (byproduct yield < 3%; below the detection limit) and durability. These findings pave the way for practical guidelines in advanced catalyst design.
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BibTeX
@misc{wang2026atomically,
title = {{Atomically Precise Platinum Nanocluster Catalysts for Efficient Hydrogen Production via Methylcyclohexane Dehydrogenation}},
author = {Yijie Wang and Chaoqi Chen and Tokuhisa Kawawaki and Kaoru Ikeda and Kotaro Sato and Kurinosuke Moriyama and Riki Nakatani and Boy Marsaputra Panjaitan and Yuichi Negishi},
howpublished = {ChemRxiv},
year = {2026},
month = oct,
doi = {10.26434/chemrxiv.15010016/v1},
url = {https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010016/v1},
note = {CC BY},
}
RIS
TY - UNPB
TI - Atomically Precise Platinum Nanocluster Catalysts for Efficient Hydrogen Production via Methylcyclohexane Dehydrogenation
AU - Yijie Wang
AU - Chaoqi Chen
AU - Tokuhisa Kawawaki
AU - Kaoru Ikeda
AU - Kotaro Sato
AU - Kurinosuke Moriyama
AU - Riki Nakatani
AU - Boy Marsaputra Panjaitan
AU - Yuichi Negishi
PY - 2026
DA - 2026/10/07
PB - ChemRxiv
DO - 10.26434/chemrxiv.15010016/v1
UR - https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010016/v1
AB - In hydrogen storage technologies with liquid organic hydrogen carriers, the development of efficient catalysts for methylcyclohexane dehydrogenation is highly important. In this study, we developed atomically precise platinum nanocluster catalysts supported on Al2O3 (Ptx/Al2O3; x = 17, ~51). Comprehensive characterization demonstrated that the catalysts remained highly monodisperse and of uniform particle size (0.86 or 1.15 nm), and maintained a cationic electronic state (Ptδ+) even after thermal treatment. Remarkably, the Pt17/Al2O3 and Pt~51/Al2O3 catalysts exhibited a mass activity up to 7.9 and 8.2 times higher than that of conventional nanoparticle catalysts. Furthermore, by effectively suppressing undesirable cracking pathways at a low operating temperature of 250 °C, the catalyst achieved both high selectivity (byproduct yield < 3%; below the detection limit) and durability. These findings pave the way for practical guidelines in advanced catalyst design.
ER -