Advanced cobalt-based catalysts boost efficiency in hydrogen fuel cell vehicles and cut costs (IMAGE)

The Hong Kong Polytechnic University

Advanced cobalt-based catalysts boost efficiency in hydrogen fuel cell vehicles and cut costs

Caption

SMSI core@shell catalyst composition optimisation for NH3 decomposition reaction
a) Co@BaAL2O4-x heterostructure under transmission electron microscope
b-c) Core@shell heterostructure with an average Co particle size of 14.2±2.7 nm and a shell thickness of 3.0±0.1 nm
d) NH3 conversion and corresponding H2 production rate as a function of WHSV over Co@BaAL2O4-x and Co/BaAL2O4-x
e) Scanning transmission electron microscopy images and electron energy loss spectroscopy element distribution maps of post-reaction Co/BaAL2O4-x, showing the accumulation of nitrogen species at the core@shell interface

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