Switching from fossil-fuel economy to hydrogen economy requires efficient catalysts to facilitate several funda- mental electrochemical reactions,including oxygen evolution reaction (OER),hydrogen evolution reaction (...Switching from fossil-fuel economy to hydrogen economy requires efficient catalysts to facilitate several funda- mental electrochemical reactions,including oxygen evolution reaction (OER),hydrogen evolution reaction (HER),oxygen reduction reaction (ORR),and hydrogen oxidation reaction (HOR).At present,platinum-group materials are still considered as the state-of-the-art catalysts,which,however,are rare and expensive,resulting in tremendous restrictions to wide usage.The future of hydrogen economy demands the design of cost-effective and highly active catalysts that are geologically abundant, particularly for affordable and scalable device systems.As for non-platinum-group electrocatalysts,strategies to enhance their catalytic performances include controlling their size,morphology and composition,creating defects and strains,as well as modulating the van der Waals interactions and crystal phases,etc.[1,2].Although remarkable progress has been achieved,innovations in catalyst design that aim to further promote catalytic activities are still highly desired.展开更多
文摘Switching from fossil-fuel economy to hydrogen economy requires efficient catalysts to facilitate several funda- mental electrochemical reactions,including oxygen evolution reaction (OER),hydrogen evolution reaction (HER),oxygen reduction reaction (ORR),and hydrogen oxidation reaction (HOR).At present,platinum-group materials are still considered as the state-of-the-art catalysts,which,however,are rare and expensive,resulting in tremendous restrictions to wide usage.The future of hydrogen economy demands the design of cost-effective and highly active catalysts that are geologically abundant, particularly for affordable and scalable device systems.As for non-platinum-group electrocatalysts,strategies to enhance their catalytic performances include controlling their size,morphology and composition,creating defects and strains,as well as modulating the van der Waals interactions and crystal phases,etc.[1,2].Although remarkable progress has been achieved,innovations in catalyst design that aim to further promote catalytic activities are still highly desired.
