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SUMMARY:Mechanistic Studies Based on Catalyst Design and In Situ Technique
 s
DTSTART:20260819T170000
DTEND:20260819T180000
DTSTAMP:20261007T172021Z
UID:175b210896519e290688b8d819170b36dbe40e505886b939967e3675
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Lu Chen\, Shanghai Advance Research Institute\, Chinese
  Academy of Sciences\nAbstract\nCatalysis plays a crucial role in advancin
 g green and high-quality industrial development. However\, existing charac
 terization methods often struggle to provide an in-depth understanding of 
 the complex interfacial behavior of catalysts\, leaving gaps in our unders
 tanding of reaction mechanisms and limiting the rational design of catalys
 ts. To address these challenges\, we have investigated the mechanistically
  guided construction of high-performance catalysts for representative cata
 lytic reactions\, with in situ X-ray spectroscopy as the core characteriza
 tion tool. Specifically\, we designed nanoreactors that resolved longstand
 ing mechanistic controversies surrounding lignin C–O bond cleavage\; dev
 eloped multiscale in situ X-ray spectroscopic techniques with high spatial
 \, temporal\, and energy resolution\, establishing correlations between co
 pper redox kinetics and catalytic activity\, identifying rate-determining 
 steps\, and elucidating the role of Cu–O bond strength\, thereby enablin
 g the visualization of catalytic reactions. Building on these mechanistic 
 insights\, we have constructed efficient non-precious-metal-based catalyti
 c systems\, including surface alloy catalysts\, single-atom alloy catalyst
 s\, and single-atom catalysts. These systems offer promising and sustainab
 le alternatives based on earth-abundant metals for future industrial appli
 cations.\n 
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STATUS:CONFIRMED
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