Effect of Ni/Rh ratios on characteristics of NixRhy nanosponges towards high-performance hydrogen evolution reaction

Abstract

The data presented in this article are related to the research article entitled “NiRh Nanosponges with Highly Efficient Electrocatalytic Performance for Hydrogen Evolution Reaction (N.-A. Nguyen et al., 2019) [1]. This article reports a facile method to prepare various Ni x Rh y nanosponges while using NaBH 4 as a reducing agent without using any surfactant. The structural and chemical properties of the obtained Ni x Rh y nanosponges are investigated.

Influence of the Applied External Magnetic Field on the Deposition of Ni–Cu Alloys

“…The efficiency of nickel in the HER can be greatly improved through the formation of alloys with specific elements, which induces a synergistic effect well documented in scientific research [27,28]. While the development of nickel alloys with noble metals such as palladium [29][30][31], platinum [32][33][34], ruthenium [35][36][37][38], and rhodium [39][40][41][42][43] presents a promising avenue for new material innovations, the high costs associated with these noble metals and the necessary precursors for their electrodeposition processes have shifted focus towards more economically viable nickel-based alloys with transition metals like cobalt [44][45][46], tungsten/molybdenum [47][48][49][50], and copper. These alloys are generally fabricated via electrodeposition, where incorporating transition metals changes the reaction mechanism of the electrodes, thus affecting the activation energy required for the HER.…”