Monodisperse AuM (M=Pd, Rh, Pt) bimetallic nanocrystals for enhanced electrochemical detection of H2O2

Flow Injection Amperometric Analysis of H2O2 at Platinum Nanoparticles Modified Pencil Graphite Electrode

“…So it's generally not preferred to work at high applied potentials in amperometry. However, working potential that applied in this work is lower than some procedures on H 2 O 2 oxidation . Although the sensitivity of some previous reported studies using metal and bimetallic nanoparticle or hybrid nanocomposite modified electrodes is higher than our proposed electrode, it can be said that p.PGE has some important advantages such as a simple, low cost, disposable, commercial available, easy of modification, less time consuming in the modification procedure, for the detection of H 2 O 2 in FIA system.…”

“…Therefore, many scientists have focused on the development of a new method for simple, fast, cheap, selective, sensitive accurate and reliable detection of H 2 O 2 [11‐45]. For this, various useful methods such as spectrophotometric , fluorimetric , chemiluminometric and electroanalytical methods have been proposed for H 2 O 2 determination. Among those, electroanalytical methods have found great attention due to its high sensitivity, ease of operation, and low cost .…”

“…For this, various useful methods such as spectrophotometric , fluorimetric , chemiluminometric and electroanalytical methods have been proposed for H 2 O 2 determination. Among those, electroanalytical methods have found great attention due to its high sensitivity, ease of operation, and low cost . Recently electrocatalytic determination of H 2 O 2 based on its reduction and also oxidation has been widely studied using various types of modified electrodes .…”

Bimetallic Nanocrystals: Structure, Controllable Synthesis and Applications in Catalysis, Energy and Sensing

“…Up to now, bimetallic nanocrystals have been applied and tested for many kinds of substances, such as hydrogen peroxide, uric acid, heavy metal ions, and glucose and so on. Many research groups, including us, have done some meaningful works in this field [199][200][201][202][203]. For example, PtW/MoS 2 composite were prepared by in-situ growing on the surface of as-obtained MoS 2 NSs (Figure 17a,b) [199].…”

Synthesis, Properties, and Biological Applications of Metallic Alloy Nanoparticles

“…This proved that Ag addition supports the fluorescence intensity and makes the alloy cluster more stable. Thereby, mercury ions were detected in a wide range with low detection limits [ 230 ]; AuM (M can be Pd, Pt, Rh) nanoparticles show remarkably enhanced hydrogen peroxide (H 2 O 2 ) detection when compared with Au, Pt, Rh, Pd monometallic nanoparticles [ 231 ], and Au–Ag, Ag–Pd, Ag–Pt bimetallic nanoparticles are utilized in detection of biomolecules such as glutathione, cysteine, endonuclease, L-cysteine, and adenine with ultra-bright fluorescence or SERS intensity [ 232 , 233 , 234 , 235 , 236 ].…”