CuNi Dendritic Material:  Synthesis, Mechanism Discussion, and Application as Glucose Sensor

Abstract

CuNi dendritic material has been obtained by the electrochemical method. For the synthesis of the material, different potentials were applied to get the dendritic structure in the aqueous solution. The materials were characterized by a series of techniques. The morphology of the material was characterized by field-emission scanning electron microscopy and high-resolution transmission electron microscopy. Energy-dispersive spectroscopy was applied to analyze the elemental composition. X-ray diffraction was used to check the crystal structure of the deposit. The dendritic morphology formation mechanism is discussed from the aspects of thermodynamics and kinetics to give a deep understanding of the crystal growth. For the potential practical application of the material in the fuel cell and biosensor, the electro-oxidation ability of glucose in alkaline solution was tested, and the sensor based on this dendritic alloy was tried.

Hierarchical Nanostructures: Design for Sustainable Water Splitting

“…At the same time, the initiation of hydrogen bubbles on the deposit side wall would contribute to the evolution of dendritic structures. Other metals, such as Ni, [100] Co, [101] Sn, [94] Ag, [102] Au, [103] Ru, [104] Pd, [105][106][107] and a series of bimetallic porous nanostructures have also been prepared by the HBDT method, including Cu-Ni, [108][109][110] Cu-Au, [111] Cu-Pd, [112] Cu-Ag, [111] Cu-Ru, [113] Cu-Pt, [114,115] Ni-Sn, [116,117] Ni-Co, [118] Ni-Mo, [119] Ni-Ag, [120] Pt-Ag, [121] and Pt-Pd. [115] Figure 6d gives a typical SEM image of the porous Ni 50 Sn 50 alloy with the tubelike dendritic structure, whose tube diameter is less than 100 nm and the length of dendritic branches is about 5 µm.…”

Facile synthesis of ultra-long Cu microdendrites for the electrochemical detection of glucose

“…Specifically, dendritic materials, consisting of a main stem and numerous side branches, receive significant attention in catalysis and technological fields [14][15][16][17][18][19][20][21]23]. For example, Fang and coworkers [18] prepared the nanoparticle-aggregated three-dimensional monocrystalline Au nanodendrites.…”

Electroanalysis of Dopamine at RuO2 Modified Vertically Aligned Carbon Nanotube Electrode

“…Modification of carbon nanotubes with metal nanoparticles, including Pt [3], Pd [4], Ru [5], PtRu [6], PtPb [7] etc, or nanostructured oxides such as MnO 2 [8], TiO 2 [9,10], Fe 2 O 3 [11] and ZnO [12] endows them with catalytic activity or specific sensitivity to various target molecules. This certainly improves the selectivity and/or detection limit for electroanalysis, thus broadens utility of carbon nanotubes [13 -17].…”