Journal
ISCIENCE
Volume 24, Issue 2, Pages -Publisher
CELL PRESS
DOI: 10.1016/j.isci.2021.102056
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Funding
- National Natural Science Foundation of China [51702078, 21633004]
- Hebei Provincial Department of Education Foundation [BJ2019016]
- Outstanding Doctoral Cultivation Project of Hebei University [YB201502]
- JSPS KAKENHI [JP18H02065]
- Photo-excitonix Project at Hokkaido University
- World Premier International Research Center Initiative (WPI Initiative) on Materials Nanoarchitectonics (MANA), MEXT (Japan)
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The study demonstrates that atomically substitutional Pt-doped in CeO2 nanosheets exhibit excellent methanol dehydrogenation activity and catalytic stability, and when combined with a photothermal conversion device, high efficiency methanol dehydrogenation performance can be achieved.
Methanol dehydrogenation is an efficient way to produce syngas with high quality. The current efficiency of sunlight-driven methanol dehydrogenation is poor, which is limited by the lack of excellent catalysts and effective methods to convert sunlight into chemicals. Here, we show that atomically substitutional Pt-doped in CeO2 nanosheets (Pts-CeO2) exhibit excellent methanol dehydrogenation activity with 500-hr level catalytic stability, 11 times higher than that of Pt nanoparticles/CeO2. Further, we introduce a photothermal conversion device to heat Pts-CeO2 up to 299 degrees C under 1 sun irradiation owning to efficient full sunlight absorption and low heat dissipation, thus achieving an extraordinarily high methanol dehydrogenation performance with a 481.1 mmol g(-1) h(-1) of H-2 production rate and a high solar-to-hydrogen (STH) efficiency of 32.9%. Our method represents another progress for ambient sunlight-driven stable and active methanol dehydrogenation technology.
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