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Versatile Three‐Dimensional Porous Cu@Cu 2 O Aerogel Networks as Electrocatalysts and Mimicking Peroxidases
Author(s) -
Ling Pinghua,
Zhang Qiang,
Cao Tingting,
Gao Feng
Publication year - 2018
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201801369
Subject(s) - aerogel , catalysis , horseradish peroxidase , peroxidase , chemistry , electrochemistry , porosity , redox , electrocatalyst , nanoparticle , chemical engineering , inorganic chemistry , nanotechnology , combinatorial chemistry , materials science , enzyme , organic chemistry , electrode , engineering
A facile strategy is presented to form 3D porous Cu@Cu 2 O aerogel networks by self‐assembling Cu@Cu 2 O nanoparticles with the diameters of ca. 40 nm for constructing catalytic interfaces. Unexpectedly, the prepared Cu@Cu 2 O aerogel networks display excellent electrocatalytic activity to glucose oxidation at a low onset potential of ca. 0.25 V. Moreover, the Cu@Cu 2 O aerogels also can act as mimicking‐enzymes including horseradish peroxidase and NADH peroxidase, and show obvious enzymatic catalytic activities to the oxidation of dopamine (DA), o ‐phenyldiamine (OPD), 3,3,5,5‐tetramethylbenzidine (TMB), and dihydronicotinamide adenine dinucleotide (NADH) in the presence of H 2 O 2 . These 3D Cu@Cu 2 O aerogel networks are a new class of porous catalytic materials as mimic peroxidases and electrocatalysts and offer a novel platform to construct catalytic interfaces for promising applications in electrochemical sensors and artificial enzymatic catalytic systems.