Journal
MATTER
Volume 3, Issue 3, Pages 879-891Publisher
CELL PRESS
DOI: 10.1016/j.matt.2020.07.002
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Funding
- National Natural Science Foundation of China [21473059, 21401056, 61504043, 61774061]
- Key Laboratory of Polar Materials and Devices, Ministry of Education
- National Key Research and Development Program of China [2016YFB0501604]
- NSAF Foundation of China [U1830130]
- Science and Technology Commission of Shanghai Municipality [19ZR1473400]
- Fundamental Research Funds for the Central Universities
- ARC [LP180100429]
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Direct manufacturing from powder to final component is of great significance for industry. However, it remains a challenge to develop a one- pot powder-to-product'' strategy to produce gradient hybrid components with combined structural and functional advantages. In this work, we report metal-organic powder thermochemical solid-vapor architectonics to direct zeolitic imidazolate framework powder into gradient cobalt/carbon monolith by utilizing in situ generated reactive vapor (non-uniform distribution) and Co nanoparticles (uniformly distributed) to achieve a combination of chemical vapor deposition/growth and solid-state welding. The gradient hybrid monolith possesses good mechanical stability, allowing it to be directly used as a freestanding working electrode for hydrogen evolution reaction in a seawater battery. This catalyst shows a low overpotential of 84 mV at a current density of 10 mA cm(-2). Furthermore, a stable power generation of over 168 h in seawater has also been realized.
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