Three-dimensional macroporous Cu electrode: Preparation and electrocatalytic activity for nonenzymatic glucose detection

Qi, Bin; Yang, Hongwei; Zhao, Kai-Yue; Bah, Mohamed M.; Bo, Xiangjie

doi:10.1016/j.jelechem.2013.04.002

Cited by 29 publications

(21 citation statements)

References 44 publications

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“…Various strategies are employed to fabricate copper‐based nanostructured and copper oxides catalysts, e. g., dynamic hydrogen bubble template (DHBT), chemical and electroless procedures . DHBT is a facile, efficient and fast technique which is used to prepare a variety of 3D porous films with controllable porous morphologies . In the DHBT technique, metal electro‐deposition takes place at high overpotential simultaneously with profuse generation hydrogen bubbles which act as dynamic templates; around them, crystal growth can take place producing 3D porous films with honeycomb‐like structures of high surface areas .…”

Section: Introductionmentioning

confidence: 99%

“…[13] DHBT is a facile, efficient and fast technique which is used to prepare a variety of 3D porous films with controllable porous morphologies. [26,27] In the DHBT technique, metal electro-deposition takes place at high overpotential simultaneously with profuse generation hydrogen bubbles which act as dynamic templates; around them, crystal growth can take place producing 3D porous films with honeycomb-like structures of high surface areas. [25] The morphology of the obtained 3D porous films is easily tuned by controlling the rate of hydrogen bubbles generation by introducing various additives in the electro-deposition bath.…”

Section: Introductionmentioning

confidence: 99%

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Tailor‐Designed Porous Catalysts: Nickel‐Doped Cu/Cu₂O Foams for Efficient Glycerol Electro‐Oxidation

et al. 2020

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Herein, Cu/Cu2O foams with dendritic‐like structures were electrodeposited atop a smooth Cu electrode by using a dynamic hydrogen bubbles technique, and they were used as efficient electrocatalysts for glycerol electrooxidation. The morphology, structure, and composition of the as‐prepared Cu/Cu2O foams were tuned by using additives (e. g. KCl and NiCl2) in the copper deposition bath to maximize their electrocatalytic performance towards glycerol electrooxidation. The as‐synthesized Cu/Cu2O foams showed superior electrocatalytic activity towards the glycerol oxidation reaction, as demonstrated by the significant negative shift in the onset potential (ca. 400 mV) together with an oxidation current that is up to six times higher, compared to the Cu/Cu2O non‐porous film with the same loading. The performance of these foams was further improved by introducing optimum amounts of either Ni2+ and/or Cl− ions. These additives resulted in a significant change in the structure and shape of the electrodeposited Cu/Cu2O textures with a concurrent increase in their roughness. Material and electrochemical characterization (e. g. SEM, XRD, XPS, LSV and CV) techniques were used to link the observed enhancements to the morphology, composition, and structure of the as‐synthesized Cu/Cu2O foam materials.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tailor‐Designed Porous Catalysts: Nickel‐Doped Cu/Cu₂O Foams for Efficient Glycerol Electro‐Oxidation

et al. 2020

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“…To date, various porous metal foams such as nickel, gold, copper [9][10][11] and some alloy foams [12][13][14] have been prepared by using hydrogen bubbles as templates. Among them, the preparation of copper foams with various pore structures has been extensively investigated under different eletrodeposition conditions.…”

mentioning

confidence: 99%

3-D Network Pore Structures in Copper Foams by Electrodeposition and Hydrogen Bubble Templating Mechanism

Zhang

Ding

Wang

et al. 2015

J. Electrochem. Soc.

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Copper foams with various pore structures have been prepared using hydrogen bubbles as templates by electrodeposition method. By adjusting deposition time and incorporating different additives, the pore structures of copper deposit layers were effectively tuned as the results of controlled nucleation, growth, coalescence and detachment of hydrogen bubbles on the deposition interfaces. According to the analysis of experimental results, a tentative templating mechanism of hydrogen bubbles has been proposed, in which the well-grown hydrogen bubbles on the deposition interface are believed to contribute mostly to the formation of pore structures in the copper deposit layers, while the bubbles enlarged through interconnection and coalescence make no templating contributions due to their easy detachment from the interface. A larger average size of templating hydrogen bubbles at the upper layer than at the lower layer should arise from the quasi close-packing of growing hydrogen bubbles with their nucleation sites confined to the areas unoccupied by the pre-existing bubbles. In terms of this templating mechanism of hydrogen bubbles, the influences of relative concentrations of Cu 2+ and H + in the electrolyte solutions, deposition current density, chemical species and concentrations of additives on the evolution of pore-structures in the electrodeposited copper foams may be well explained and understood.Porous metal foams are of special physical and/or chemical properties, such as high porosity and internal surface areas, good mechanical strength and electrical conductivity, etc. and thereby have found wide applications as catalyst supports, filters in high temperature liquid, key components for miniaturized heat exchangers, electromagnetic shielding materials, and electrode materials for sensors, batteries, and fuel cells.

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“…It is well‐known that electrode materials with hollow or porous structure facilitate the mass transfer of reactants, providing large contact area, exposing more catalytic site, and thus significantly promoting the catalytic activity of the electrochemical sensors. Therefore, copper‐based materials for glucose sensor with hollow and porous structure are currently actively pursued including hollow CuO polyhedron , Cu/Cu 2 O hollow microspheres , three‐dimensional (3D) porous CuO/TiO 2 modified electrode , 3D macroporous Cu electrode , cupric oxide nanoparticles on mesoporous carbons , and so on. These electrochemical sensors exhibit high performance towards glucose detection.…”

Section: Introductionmentioning

confidence: 99%

“…These electrochemical sensors exhibit high performance towards glucose detection. However, all these above mentioned porous or hollow materials suffer from tedious and time‐consuming synthesis route.…”

Section: Introductionmentioning

confidence: 99%

Commercial Copper Foam as an Effective 3D Porous Electrode for Nonenzymatic Glucose Detection

et al. 2016

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Commercially available copper foam (CF) was used as a 3D porous electrochemical sensing platform for nonenzymatic glucose detection. CF shows high electrocatalytic activity towards glucose oxidation and can be used directly for glucose electrochemical sensing without any pretreatment. The sensor exhibits high performance towards glucose in 0.1 M NaOH solution with the linear range from 1 μM to 0.5 mM, the sensitivity of 5.85 mA mM−1 cm−2 and the detection limit of 0.5 μM (S/N=3) simultaneously. Furthermore, the sensor shows a high selectivity for glucose against the common interferences and good reliability for glucose detection in human serum samples.

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Three-dimensional macroporous Cu electrode: Preparation and electrocatalytic activity for nonenzymatic glucose detection

Cited by 29 publications

References 44 publications

Tailor‐Designed Porous Catalysts: Nickel‐Doped Cu/Cu₂O Foams for Efficient Glycerol Electro‐Oxidation

Tailor‐Designed Porous Catalysts: Nickel‐Doped Cu/Cu₂O Foams for Efficient Glycerol Electro‐Oxidation

3-D Network Pore Structures in Copper Foams by Electrodeposition and Hydrogen Bubble Templating Mechanism

Commercial Copper Foam as an Effective 3D Porous Electrode for Nonenzymatic Glucose Detection

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Three-dimensional macroporous Cu electrode: Preparation and electrocatalytic activity for nonenzymatic glucose detection

Cited by 29 publications

References 44 publications

Tailor‐Designed Porous Catalysts: Nickel‐Doped Cu/Cu2O Foams for Efficient Glycerol Electro‐Oxidation

Tailor‐Designed Porous Catalysts: Nickel‐Doped Cu/Cu2O Foams for Efficient Glycerol Electro‐Oxidation

3-D Network Pore Structures in Copper Foams by Electrodeposition and Hydrogen Bubble Templating Mechanism

Commercial Copper Foam as an Effective 3D Porous Electrode for Nonenzymatic Glucose Detection

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Tailor‐Designed Porous Catalysts: Nickel‐Doped Cu/Cu₂O Foams for Efficient Glycerol Electro‐Oxidation

Tailor‐Designed Porous Catalysts: Nickel‐Doped Cu/Cu₂O Foams for Efficient Glycerol Electro‐Oxidation