2019
DOI: 10.1002/smtd.201800447
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Single Metal Atom Photocatalysis

Abstract: Photocatalysis suffers from rapid recombination of photoexcited charge carriers and limited active sites for the catalytic reactions, resulting in unsatisfactory performances that are far from practical application. Single metal atom catalysts not only increase the number of active sites due to the maximum atom‐utilization efficiency, but also enhance the intrinsic activity of each active site because of their unique geometric and electronic features. Furthermore, single metal atom catalysts provide a platform… Show more

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Cited by 158 publications
(102 citation statements)
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References 108 publications
(178 reference statements)
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“…When reducing the thickness of 2D nanosheets to fewer or ultimately a single layer, the substrate with abundant active sites and surface defects from disordered lattices might achieve an exceptional photoelectrocatalytic performance of N 2 fixation . In addition, single atoms on substrate can serve as active sites by regulating their electronic properties in the photoelectrocatalytic reactions . More importantly, HER could be admirably suppressed during the catalytic process in photoelectrochemical systems.…”
Section: Discussionmentioning
confidence: 99%
“…When reducing the thickness of 2D nanosheets to fewer or ultimately a single layer, the substrate with abundant active sites and surface defects from disordered lattices might achieve an exceptional photoelectrocatalytic performance of N 2 fixation . In addition, single atoms on substrate can serve as active sites by regulating their electronic properties in the photoelectrocatalytic reactions . More importantly, HER could be admirably suppressed during the catalytic process in photoelectrochemical systems.…”
Section: Discussionmentioning
confidence: 99%
“…Electrochemical energy storage and conversion technology have been widely studied to produce sustainable and renewable energy . Many advanced clean energy technologies, such as fuel cells, metal air batteries, and water splitting, etc., require highly active catalysts to lower the energy barrier and increase the reaction rate with an efficient and stable route.…”
Section: Introductionmentioning
confidence: 99%
“…[72][73][74] By anchoring single metal atoms with semiconductor substrates, the obtained photocatalysts have demonstrated great enhancement in photocatalytic performances. [75] In the classic PCN structure, three sp 2 hybridized C-and N-forming tri-s-triazine rings centers on an "N pots" filled with six lone-pair electrons from N atoms, which provides an ideal site to confine the highly active single metal atoms. [76][77][78] Based on this special construction, the single metal atom catalysts, including single noble-metal and single cheap transition-metal atoms, [78,79] Small 2019, 15,1900772 anchored on PCN by chemical bonding have received considerable attentions for the development of synthesis methods, the identification of active site and the optimization of single-atom metal loading amounts.…”
Section: Anchoring Single Metal Atoms With Pcnmentioning
confidence: 99%