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Palladium Nanoparticles Anchored on Anatase Titanium Dioxide‐Black Phosphorus Hybrids with Heterointerfaces: Highly Electroactive and Durable Catalysts for Ethanol Electrooxidation
Author(s) -
Wu Tong,
Fan Jinchen,
Li Qiaoxia,
Shi Penghui,
Xu Qunjie,
Min Yulin
Publication year - 2018
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201701799
Subject(s) - materials science , palladium , catalysis , anatase , chemical engineering , titanium dioxide , nanoparticle , titanium , inorganic chemistry , nuclear chemistry , nanotechnology , metallurgy , chemistry , organic chemistry , photocatalysis , engineering
Designing high‐performance palladium (Pd) supports with enhanced ethanol oxidation reaction (EOR) activity has consistently been a challenge. Here, a novel anatase titanium dioxide nanosheets‐black phosphorus (ATN‐BP) hybrid is fabricated as a support for Pd nanoparticles used in the EOR. The direct ball‐milling of BP nanoflakes and ATN under argon protection lead to the formation of ATN‐BP hybrids with BP nanoflakes interconnected by cataclastic ATN with POTi bonds. The structure of ATN‐BP not only is beneficial for improving the electrolyte penetration and electron transportation but also has a strong influence on the stripping of reactive intermediates through the synergistic interaction between Pd and ATN‐BP. The results demonstrate that the Pd/ATN‐BP hybrids with heterointerfaces of Pd, BP, and ATN exhibit ultrahigh electroactivity and durability. In the EOR, the Pd/ATN‐BP catalyst can achieve an electrochemically active surface area of ≈462.1 m 2 g Pd −1 and a mass peak current density of 5023.8 mA mg Pd −1 , which are 11.67 and 6.87 times greater, respectively, than those of commercial Pd/C. The Pd/ATN‐BP catalysts also show remarkable stability with a retention rate of the peak current density of ≈30.6% after a durability test of 3600 s.