Three-dimensional nanoporous gold–cobalt oxide electrode for high-performance electroreduction of hydrogen peroxide in alkaline medium

Bifunctional Perovskite Oxide Catalysts for Oxygen Reduction and Evolution in Alkaline Media

“…In terms of performance improvement, a great challenge is a simultaneous high performance for the ORR and the OER. Based on recent achievements in developing bifunctional perovskite catalysts, the ORR seems to be even more challenging for these oxide catalysts, relative to the OER. Thus, fully elucidating the active sites and the relevant ORR mechanism is required to provide more effective guidance to tune the structures of perovskite allowing enhanced O 2 adsorption and subsequent disassociation.…”

Ni(OH)2 nanoflakes supported on 3D hierarchically nanoporous gold/Ni foam as superior electrodes for supercapacitors

“…Firstly, Ni foam substrates were sequentially treated with acetone, alcohol, deionized water and 4% hydrochloric acid for 30 min in an ultrasonic bath before use. Then, Au-Sn alloy films were electrodeposited on the as-pretreated Ni foam substrate as reported in our previous studies [29][30][31][32][33]. Briefly, the electrodeposition process was carried out using a DC power supply in a one-compartment two-electrode cell with a Pt mesh as the counter electrode and Ni foam substrates (1 cm 2 exposure area) as the working electrodes.…”

“…Recently, we have demonstrated that NPG films can be well grown on various conductive substrates, such as copper foil, stainless steel and Ni foam, through a facile procedure that combines electrodeposition and chemical dealloying of the Au-Sn alloy film [29][30][31][32][33]. The seamless integration of NPG films with these frequently-used conductive substrates is of great value to widen the application range of NPG-based materials.…”

Electrochemical Biosensor Based on Nanoporous Au/CoO Core–Shell Material with Synergistic Catalysis

“…[17,18] To enhancet he effective transport of electrolytes and redox kinetics at metal/oxide interfaces,h ierarchical nanoporous structures have also been reliably fabricated. [21][22][23] Meanwhile, excellent conductivity can significantly decrease the internal resistance of the hybrid electrode, which is in favor of improving the efficiency of the electrochemical reaction. [19] Except for carbon-incorporated networks, nanoporous metals with superior conductivity are also considered as the approximate candidatesf or electrochemical electrodes.…”

“…[13] Nanoporous metals have rigid skeletons with ultrahigh mechanical strength, which can avoid the randoma ggregations and catastrophicc ollapse of metal oxides in favor of stable mass transport within the porousc hannels during electrochemical reactions. [21][22][23] Meanwhile, excellent conductivity can significantly decrease the internal resistance of the hybrid electrode, which is in favor of improving the efficiency of the electrochemical reaction. Freestanding nanoporousg old (NPG) films have been experimen-An ultrathinC oO layer is depositedo nt he skeleton surfaces of an anoporousg old (NPG) film by using atomicl ayer deposition, creating af lexible electrode.…”