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This study demonstrates that carbon fibers can serve as active substrates for engineering nickel-gold (Ni/Au) interfaces that significantly enhance hydrogen evolution reaction performance in alkaline electrolytes containing ammonia. The researchers show that the carbon substrate actively participates in creating optimized metal interfaces rather than serving as a passive support, leading to improved catalytic activity for hydrogen production. The Ni/Au interface on carbon fibers exhibits superior electrocatalytic properties compared to conventional catalyst configurations in ammonia-rich alkaline conditions.
Why it matters
This advancement could improve the efficiency of hydrogen production from ammonia, which is important for clean energy applications and hydrogen fuel technologies. The findings may enable more cost-effective catalysts for ammonia electrolysis and support the development of ammonia as a hydrogen carrier in renewable energy systems.
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