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Synthesis and Electrocatalytic Properties of Palladium Network Nanostructures
Author(s) -
Zhang Guojie,
Zhang Lu,
Shen Liping,
Chen Yu,
Zhou Yiming,
Tang Yawen,
Lu Tianhong
Publication year - 2012
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201200163
Subject(s) - selected area diffraction , x ray photoelectron spectroscopy , chemistry , chronoamperometry , cyclic voltammetry , palladium , transmission electron microscopy , scanning electron microscope , electrochemistry , nanostructure , chemical engineering , inorganic chemistry , catalysis , materials science , electrode , organic chemistry , composite material , engineering
An inorganic polymeric hydrogel, which is formed irreversibly in water through interaction between K 2 Pd II Cl 4 and K 4 Fe II (CN) 6 , is synthesized. The palladium nanostructures take the form of three‐dimensional (3D) networks and are obtained in a facile manner by simple reduction of the hydrogel using NaBH 4 . The size, morphology, and surface composition of these 3D palladium networks are investigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy‐dispersive spectroscopy (EDS), selected‐area electron diffraction (SAED), X‐ray diffraction (XRD), and X‐ray photoelectron spectroscopy (XPS). The electrochemical properties are investigated in detail by cyclic voltammetry, chronoamperometry, and CO stripping tests. Such 3D nanostructures exhibit a large electroactive surface area, excellent electrochemical stability, and high electrocatalytic activity toward electrooxidation of formic acid.