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Efficient Coupling of Solar Energy to Catalytic Hydrogenation by Using Well‐Designed Palladium Nanostructures
Author(s) -
Long Ran,
Rao Zhoulv,
Mao Keke,
Li Yu,
Zhang Chao,
Liu Qiliang,
Wang Chengming,
Li ZhiYuan,
Wu Xiaojun,
Xiong Yujie
Publication year - 2015
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201407785
Subject(s) - catalysis , palladium , nanostructure , materials science , nanocrystal , plasmon , styrene , photothermal therapy , irradiation , photochemistry , range (aeronautics) , coupling reaction , photothermal effect , optoelectronics , nanotechnology , chemistry , polymer , copolymer , physics , composite material , organic chemistry , nuclear physics
A Ru 3+ ‐mediated synthesis for the unique Pd concave nanostructures, which can directly harvest UV‐to‐visible light for styrene hydrogenation, is described. The catalytic efficiency under 100 mW cm −2 full‐spectrum irradiation at room temperature turns out to be comparable to that of thermally (70 °C) driven reactions. The yields obtained with other Pd nanocrystals, such as nanocubes and octahedrons, are lower. The nanostructures reported here have sufficient plasmonic cross‐sections for light harvesting in a broad spectral range owing to the reduced shape symmetry, which increases the solution temperature for the reaction by the photothermal effect. They possess a large quantity of atoms at corners and edges where local heat is more efficiently generated, thus providing active sites for the reaction. Taken together, these factors drastically enhance the hydrogenation reaction by light illumination.