One-Step Synthesis of Nickel Sulfides and Their Electrocatalytic Activities for Hydrogen Evolution Reaction: A Case Study of Crystalline h-NiS and o-Ni<sub>9</sub>S<sub>8</sub> Nanoparticles

Silva, Mitchell G. S. da; Leite, Celisnolia M.; Cordeiro, Marco A. L.; Mastelaro, Valmor Roberto; Leite, E. R.

doi:10.1021/acsaem.0c01405

Cited by 36 publications

(22 citation statements)

References 20 publications

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“…22-1193), which proves the heterostructure of CoNi–S/C. 37,38 In comparison with the results of XRD patterns for CoNi–P/C and CoNi–S/C, CoNi-SP/C shows a more complicated phase structure from CoNi–S and CoNi–P as expected (Fig. 1i).…”

Section: Resultssupporting

confidence: 64%

A multi-interface CoNi-SP/C heterostructure for quasi-solid-state hybrid supercapacitors with a graphene oxide-containing hydrogel electrolyte

Guo

et al. 2022

J. Mater. Chem. A

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Section: Resultssupporting

confidence: 64%

A multi-interface CoNi-SP/C heterostructure for quasi-solid-state hybrid supercapacitors with a graphene oxide-containing hydrogel electrolyte

Guo

et al. 2022

J. Mater. Chem. A

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“…However, only limited research has concentrated on HER electrocatalysis in alkaline media, with the majority of the existing research concentrating on acidic media. Crystalline nickel sulfides are particularly promising catalysts, as reported by Silva et al [ 73 ] who later found that their performance correlates to their crystalline structure. Both of the as-synthesized phases of nickel sulfide, orthorhombic (o-Ni 9 S 8 ) and hexagonal nickel sulfide (h-NiS), showed excellent HER activity in an alkaline medium, even surpassing W 2 C and Mo 2 C ( Figure 11 b).…”

Section: Ni-based Electrocatalysts For Her In Alkaline Mediummentioning

confidence: 92%

“…( b ) HER-LSV curves of o -Ni 9 S 8 and h -NiS, reprinted with permission from Ref. [ 73 ]. ( c ) HRTEM images and ( d ) HER performance of the Ni-GF/VC catalyst, reprinted with permission from Ref.…”

Section: Ni-based Electrocatalysts For Her In Alkaline Mediummentioning

confidence: 99%

Recent Development of Nickel-Based Electrocatalysts for Urea Electrolysis in Alkaline Solution

Anuratha

Rinawati

et al. 2022

Nanomaterials

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Recently, urea electrolysis has been regarded as an up-and-coming pathway for the sustainability of hydrogen fuel production according to its far lower theoretical and thermodynamic electrolytic cell potential (0.37 V) compared to water electrolysis (1.23 V) and rectification of urea-rich wastewater pollution. The new era of the “hydrogen energy economy” involving urea electrolysis can efficiently promote the development of a low-carbon future. In recent decades, numerous inexpensive and fruitful nickel-based materials (metallic Ni, Ni-alloys, oxides/hydroxides, chalcogenides, nitrides and phosphides) have been explored as potential energy saving monofunctional and bifunctional electrocatalysts for urea electrolysis in alkaline solution. In this review, we start with a discussion about the basics and fundamentals of urea electrolysis, including the urea oxidation reaction (UOR) and the hydrogen evolution reaction (HER), and then discuss the strategies for designing electrocatalysts for the UOR, HER and both reactions (bifunctional). Next, the catalytic performance, mechanisms and factors including morphology, composition and electrode/electrolyte kinetics for the ameliorated and diminished activity of the various aforementioned nickel-based electrocatalysts for urea electrolysis, including monofunctional (UOR or HER) and bifunctional (UOR and HER) types, are summarized. Lastly, the features of persisting challenges, future prospects and expectations of unravelling the bifunctional electrocatalysts for urea-based energy conversion technologies, including urea electrolysis, urea fuel cells and photoelectrochemical urea splitting, are illuminated.

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“…Among numerous electrocatalysts, platinum (Pt)‐based materials are considered to be the benchmark electrocatalysts for triggering HER, however, their cost and scarcity limit the large‐scale application. Therefore, the cost‐effective electrocatalysts, including sulfides, [ 4 ] carbides, [ 5 ] nitrides, [ 6 ] chalcogenides, [ 7 ] and phosphides [ 8 ] have been widely explored as the alternatives of Pt‐based electrocatalyst. In the light of their economically advantageous and similar bond energy to that of Pt, ruthenium (Ru) has evoked much attention as a potential hydrogen evolution electrocatalyst.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Co(µ‐O)₂Ru Moiety Endowed Efficiently Catalytic Hydrogen Evolution

Tung

Kuo

Huang

et al. 2022

Advanced Energy Materials

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A large number of highly active Ru‐based electrocatalysts have been reported for the hydrogen evolution reaction (HER). The utilization of synergistic effects for promoting HER performance remains inadequate, especially for corresponding potential‐driven reactive sites at the atomic level. Herein, a Co‐substituted RuRu2P structure is employed as a model system to reveal the synergistic effect on Ru‐based electrocatalysts and to realize the potential‐driven reactive sites during the HER. Optimized RuRu2P @ Co0.6 exhibits a superior catalytic performance in alkaline electrolytes, achieving a low overpotential of 9 mV at a current density of 10 mA cm–2. To precisely describe the geometrical nature of surface moiety of Co(µ‐O)2Ru, an indicator (β) is established to quantify the strain of Co(µ‐O)2Ru moieties through calculating the LCoL (L = P or O) angles through employing in situ X‐ray absorption spectroscopy. Both bond strain and corresponding metal‐metal distance of CoRu in Co(µ‐O)2Ru moiety can significantly affect the structural tolerance and facilitate the coupling of adsorbed hydrogen atoms during HER. It is believed that the perspective raised in the present work will provide a new avenue to the design of highly active HER catalysts at the atomic scale.

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One-Step Synthesis of Nickel Sulfides and Their Electrocatalytic Activities for Hydrogen Evolution Reaction: A Case Study of Crystalline h-NiS and o-Ni₉S₈ Nanoparticles

Cited by 36 publications

References 20 publications

A multi-interface CoNi-SP/C heterostructure for quasi-solid-state hybrid supercapacitors with a graphene oxide-containing hydrogel electrolyte

A multi-interface CoNi-SP/C heterostructure for quasi-solid-state hybrid supercapacitors with a graphene oxide-containing hydrogel electrolyte

Recent Development of Nickel-Based Electrocatalysts for Urea Electrolysis in Alkaline Solution

Dynamic Co(µ‐O)₂Ru Moiety Endowed Efficiently Catalytic Hydrogen Evolution

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One-Step Synthesis of Nickel Sulfides and Their Electrocatalytic Activities for Hydrogen Evolution Reaction: A Case Study of Crystalline h-NiS and o-Ni9S8 Nanoparticles

Cited by 36 publications

References 20 publications

A multi-interface CoNi-SP/C heterostructure for quasi-solid-state hybrid supercapacitors with a graphene oxide-containing hydrogel electrolyte

A multi-interface CoNi-SP/C heterostructure for quasi-solid-state hybrid supercapacitors with a graphene oxide-containing hydrogel electrolyte

Recent Development of Nickel-Based Electrocatalysts for Urea Electrolysis in Alkaline Solution

Dynamic Co(µ‐O)2Ru Moiety Endowed Efficiently Catalytic Hydrogen Evolution

Contact Info

Product

Resources

About

One-Step Synthesis of Nickel Sulfides and Their Electrocatalytic Activities for Hydrogen Evolution Reaction: A Case Study of Crystalline h-NiS and o-Ni₉S₈ Nanoparticles

Dynamic Co(µ‐O)₂Ru Moiety Endowed Efficiently Catalytic Hydrogen Evolution