Electrodeposited Ni-Sn intermetallic alloy electrode for 3D sulfur battery

Tolegen, B.; Adi, Akylbek; Aishova, Assylzat; Bakenov, Zhumabay; Nurpeissova, Arailym

doi:10.1016/j.matpr.2017.04.021

Cited by 7 publications

(2 citation statements)

References 8 publications

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“…Electrodeposition is a flexible method that has been used to prepare OICs composed of non-noble metal elements for lithium-ion batteries, lithium–sulfur batteries, and thermoelectric devices . However, this method is rarely used to prepare OICs for catalytic applications, due to the difficulty of precisely controlling the final material composition when codepositing precious metals and nonprecious metals .…”

Section: Introductionmentioning

confidence: 99%

Rapid Room-Temperature Synthesis of a Metastable Ordered Intermetallic Electrocatalyst

et al. 2019

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Metal alloys with atomic scale ordering (ordered intermetallics) have emerged as a new class of high performance materials for mediating electrochemical reactions. However, ordered intermetallic nanostructures often require long synthesis times and/or high temperature annealing to form because a high-activation energy barrier for interdiffusion must be overcome for the constituent metals to equilibrate into ordered structures. Here we report the direct synthesis of metastable ordered intermetallic Pd31Bi12 at room-temperature in minutes via electrochemical deposition. Pd31Bi12 is highly active for the reduction of O2 to H2O, delivering specific activities over 35× higher than those of commercial Pt and Pd nanocatalysts, placing it as the most active Pd-based catalyst, to the best of our knowledge, reported under similar testing conditions. Stability tests demonstrate minimal loss of activity after 10,000 cycles, and a retention of intermetallic crystallinity. This study demonstrates a new method of preparing ordered intermetallics with extraordinary catalytic activity at room temperature, providing a new direction in catalyst discovery and synthesis.

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Section: Introductionmentioning

confidence: 99%

Rapid Room-Temperature Synthesis of a Metastable Ordered Intermetallic Electrocatalyst

et al. 2019

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“…One of the most promising routes to mitigate the degradation of many electrodes lies in designing architectures. Mainly three-dimensional (3D) structured electrodes are evolving as smart electrodes with unique features such as interconnected porous networks and intrinsic structural integrity, avoiding the use of conductive agents and binders as well as continuous paths within the electrodes, facilitating fast transport of both lithium ions and electrons [ 11 , 12 ]. Bases on this, Adylkhanova et al previously reported on the possibility of the Cu x S/Cu (x = 1.96, 1.8) foam structure, which showed reasonable performance [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

3D Hierarchical Nanocrystalline CuS Cathode for Lithium Batteries

et al. 2021

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Conductive and flexible CuS films with unique hierarchical nanocrystalline branches directly grown on three-dimensional (3D) porous Cu foam were fabricated using an easy and facile solution processing method without a binder and conductive agent for the first time. The synthesis procedure is quick and does not require complex routes. The structure and morphology of the as-deposited CuS/Cu films were characterized by X-ray diffraction and scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy and transmission electron spectroscopy, respectively. Pure crystalline hexagonal structured CuS without impurities were obtained for the most saturated S solution. Electrochemical testing of CuS/Cu foam electrodes showed a reasonable capacity of 450 mAhg−1 at 0.1 C and excellent cyclability, which might be attributed to the unique 3D structure of the current collector and hierarchical nanocrystalline branches that provide fast diffusion and a large surface area.

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