A Review on Advanced FeNi-Based Catalysts for Water Splitting Reaction

Abstract

Water splitting as an advanced energy conversion technology driven by sustainable energy is attracting ever-increasing attention for clean hydrogen fuel generation from water. Two fundamental reactions, hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), are involved, and cost-effective catalysts are required to fulfill the energy transfer process. Nonprecious-metal catalysts have been proposed as the mainstay for future commercial applications. Among them, iron−nickel (FeNi)based catalysts are very promising benefiting from the FeNi synergistic interaction in promoting the basic reactions. With the help of rational structure design, composition optimization, and electronic state tuning, advanced catalysts based on FeNi have been extensively reported. Herein, we focus on the varied FeNi-based catalysts for water splitting reactions. Before reviewing the literature, some descriptors and perspective comments are first given in the parameter evaluation part that might be helpful for understating the catalytic capability. In light of the extensive reports, some typical examples of FeNi-based catalysts classified into FeNi-alloy, phosphides, oxides, layered double hydroxides, sulfides, tellurides, selenides, and fluorides are introduced in detail. Combined with these advanced catalysts and the performance evaluation, this review will be helpful for readers in understanding the advanced progress on FeNi-based catalysts for water splitting reaction. Problems and challenges are also discussed demonstrating that efficient catalysts that can maintain high activity and stability are still highly desired. A brief perspective on FeNi-based catalysts is proposed that we hope can be a good complement to the existing literature for a better understanding of FeNi-based catalysts for water splitting reaction.

Facile synthesis of highly active Ti/Sb-SnO2 electrode by sol-gel spinning technique for landfill leachate treatment

“…The phenomenon of crack production was attributable to the differences in the shrinkage or expansion properties between the Sn-Sb active layer and titanium substrate during calcination and the evaporation of solvent in the dry rubbing process (Bi et al 2019a). The penetration of electrolyte into the substrate through these cracks would reduce the binding force between the coating and the substrate, which would seriously affect the electrochemical activity and stability (Li et al 2020a(Li et al , 2020b(Li et al , 2020c.…”

“…However, the high cost of BDD restricts its widespread commercial applications (Brillas et al 2005;Ciríaco et al 2009). PbO 2 electrode has shown excellent catalytic performance, long service lifetime and low cost as a non-active anode, but it also has some shortcomings such as secondary contamination due to Pb dissolution (Yao et al 2019;Li et al 2020aLi et al , 2020bLi et al , 2020c. Generally speaking, SnO 2 cannot be directly used as an electrode coating material due to high resistance (Mora-Gomez et al 2019).…”

“…Based on the above-mentioned preparation method, Ti/Sb-SnO 2 electrodes have been widely used in various kinds of wastewater treatment (Maharana et al 2015;Zhang et al 2020aZhang et al , 2020b. Researchers usually used co-doped SnO 2 -Sb-x (x-element) (Endoh & Kurihara 1998;Duan et al 2014), interlayer insertion (Li et al 2020a(Li et al , 2020b(Li et al , 2020c and Ti substrate modification (Hodges et al 2018) to further enhance the service life and electro-catalytic property of Ti/Sb-SnO 2 electrode (Aguilar et al 2018).…”

The Recent Progress on Supported and Recyclable Nickel Catalysts towards Organic Transformations: A Review

“…The recent trend towards up surged demand for catalysts in the widespread application arena, such as, a huge number of functional chemical production, petroleum refining, wastewater treatment, CO 2 reduction, water splitting, is associated with selectivity, easy separation and recyclability. [2][3][4][5] In 2019, the estimated market size value of industrial catalyst USD 33.9 billion with an expected CAGR of 4.4 % from 2020-2027. [6] The increase in the market value of the catalyst from 2016-2027 is shown in Figure 1(a).…”

“…After the successful manifestation of the term “catalysis”, coined by Jöns Jacob Berzelius in 1835, [1] the numerous research work and groundbreaking findings explore the catalysis science and technology, as the heartthrob of the scientific and engineering in the last decades. The recent trend towards up surged demand for catalysts in the widespread application arena, such as, a huge number of functional chemical production, petroleum refining, wastewater treatment, CO 2 reduction, water splitting, is associated with selectivity, easy separation and recyclability [2–5] . In 2019, the estimated market size value of industrial catalyst USD 33.9 billion with an expected CAGR of 4.4 % from 2020–2027 [6] .…”