Corrosion of ternary Mn–Cu–Au to nanoporous Au–Cu with widely tuned Au/Cu ratio for electrocatalyst

Electrochemical Synthesis of Mesoporous Au–Cu Alloy Films with Vertically Oriented Mesochannels Using Block Copolymer Micelles

“…It has been frequently reported that copper (Cu) shows a similar catalytic tendency to Au and could partially substitute the precious metal in such applications . Cu electrodes show high sensitivity toward glucose oxidation reaction, but the catalysis takes place at a more positive potential compared to Au. , Therefore, combining Au and Cu in one bimetallic system is expected to reduce the fabrication cost compared to monometallic Au-based devices while improving the selectivity and sensitivity caused by the synergistic electronic response and the catalytic benefits from both components. , …”

Dual-phase nanostructuring as a route to flexible nanoporous metals with outstanding comprehensive mechanical properties

“…S7a). The increment in current at the first stage (< 0 V) is possibly due to the electro-adsorption of glucose and generation of adsorbed intermediates (one proton is lost per-glucose molecule in this electrochemical reaction) [58]. In the second stage (>0 V), current increment is observed possibly due to the direct oxidation of glucose, resulting in much-transferred charge [58].…”

“…Therefore, the concentrations of glucose can be quantitatively detected with the NP Cu@Zr-Cu-Al MG by EIS method. Nevertheless, the NP Cu@Zr-Cu-Al MG electrode may not selectively detect the glucose; it is because the nanoporous transition Cu, AuCu, and AuAg metals demonstrated highly sensitive detection towards various biological substances, such as glucose, dopamine and uric acid [52,58,60]. Radhakrishnan et al [61] reported that CuS electrode could selectively detect the glucose from the ascorbic acid (AA), uric acid (UA), dopamine (DA), and fructose (Fru).…”

Dealloying monolithic Pt-Cu alloy to wire-like nanoporous structure for electrocatalysis and electrochemical sensing

“…In recent years, dealloying has shown obvious advantage in fabricating nanostructured alloy catalysts with nanoporous ligament-pore structure [16][17][18][19][20]. Different from these bottom-up wet chemical reduction methods, dealloying can more precisely control the alloy ratio by selective removal of one component from a ternary alloy [21,22] or controlled dealloying a binary alloy [23,24]. Compared with limited single-phase ternary alloy systems, more binary systems are available for the dealloying to uniform nanoporous catalysts [25].…”