Recent developments in the use of single-atom catalysts for water splitting

Wang, Yao; Huang, Xun; Wei, Zidong

doi:10.1016/s1872-2067(20)63619-1

Cited by 55 publications

(27 citation statements)

References 197 publications

(202 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, the water splitting reactions are dependent on the pH, as expected for reactions involving protons 23 , as demonstrated by the equations presented in Figure 1B. For instance, for HER, there are two main steps on the electrode surface, described by Volmer-Heyrovsky and Volmer-Tafel mechanisms proposed to acidic and basic solutions 24 (Figure 1C). On the other hand, OER is a more complex, requiring a high energy to overcome the sluggish kinetic barrier…”

mentioning

confidence: 63%

“…Tafel determining rate steps. The smaller value of Tafel slope means a faster electron-transfer kinetics of the electrocatalyst 22,24,25 .…”

Section: Energy Advances Accepted Manuscriptmentioning

confidence: 99%

“…The smaller value of the Tafel slope means a faster electron-transfer kinetics of the electrocatalyst. 22,24,25 In addition to low overpotential and Tafel slope values, a good electrocatalyst should also be stable for long periods of time, under operating conditions. This evaluation can be performed by different techniques, including continuous CV cycling and LSV.…”

Section: Water-splittingmentioning

confidence: 99%

See 2 more Smart Citations

Recent progress in ZnCo₂O₄and its composites for energy storage and conversion: a review

Gonçalves

Silva

et al. 2022

Energy Adv.

View full text Add to dashboard Cite

show abstract

mentioning

confidence: 63%

“…Tafel determining rate steps. The smaller value of Tafel slope means a faster electron-transfer kinetics of the electrocatalyst 22,24,25 .…”

Section: Energy Advances Accepted Manuscriptmentioning

confidence: 99%

Section: Water-splittingmentioning

confidence: 99%

See 1 more Smart Citation

Recent progress in ZnCo₂O₄and its composites for energy storage and conversion: a review

Gonçalves

Silva

et al. 2022

Energy Adv.

View full text Add to dashboard Cite

show abstract

“…Combined emissions of carbon dioxide and methane are even graver for gray hydrogen than for any other fossil fuels, which is definitely ecologically unfriendly . Water splitting, derived by the intermittent electric energy using renewable energy with a high energy yield, has been widely considered as an energy-efficient and promising strategy . The H 2 so produced is termed as “green hydrogen”, viewed as the most potential energy carrier because of its merits of zero pollution and renewability. , …”

Section: Introductionmentioning

confidence: 99%

“…5 Water splitting, derived by the intermittent electric energy using renewable energy with a high energy yield, has been widely considered as an energy-efficient and promising strategy. 6 The H 2 so produced is termed as "green hydrogen", viewed as the most potential energy carrier because of its merits of zero pollution and renewability. 5,7 The certain shortcomings of the acidic electrolyzer, including acid mist and rapid corrosion effect, have driven researchers to shift their research focus on alkaline systems.…”

Section: Introductionmentioning

confidence: 99%

Anionic and Cationic Co-Substitutions of S into Vertically Aligned WTe₂ Nanosheets as Catalysis for Hydrogen Evolution under Alkaline Conditions

Lin

Zhang

Jiang

et al. 2022

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

The design of transition metal dichalcogenides that satisfies the essential requirements of the hydrogen evolution reaction (HER) in alkaline solutions remains a challenge. The study gives a description of sulfur atoms into both anionic and cationic sites of WTe 2 , which is deliberately designed and has been rarely reported. Herein, we report 3D self-supported anionic and cationic S-substituted WTe 2 nanosheet arrays constructed on a carbon cloth by a three-step synthesis method at elevated temperatures. Experimental and theoretical analysis are both executed to investigate S-WTe 2 /CC nanocomposites for efficient alkaline HER, and the results attest to its excellent electrocatalytic performance. The optimized S-WTe 2 /CC exhibits an enhanced HER activity with an overpotential of 195 mV at the current density of 10 mA cm −2 , which is 2.3 and 1.7 times lower than that of WO 3 /CC (451 mV) and WTe 2 /CC (327 mV), respectively. According to density functional theory calculations, such improvement of alkaline HER is attributed to the optimized p-band electron configuration of Te atoms, higher H* intermediate adsorption, and lower H 2 O dissociation energy barrier by anionic and cationic co-substitution of S, which accelerate the Volmer−Heyrovsky process. The present study paves a way to the modification strategy of WTe 2 electrocatalysts.

show abstract

SACs on Non‐Carbon Substrates: Can They Outperform for Water Splitting?

Sun

Zang

Sun

et al. 2023

Adv Funct Materials

View full text Add to dashboard Cite

Non‐carbon‐supported single‐atom electrocatalysts (SACs) have attracted tremendous research interest for water splitting, owning to their remarkable differences in bond and coordination, and better and tunable catalytic performance, compared with those carbon‐supported SACs and commercial catalysts. The electrocatalytic performance of these non‐carbon‐supported SACs is intimately related to the structure, surficial chemical groups, and vacancy defects of non‐carbon host materials, as well as the physico‐chemical properties and population of single atoms. The much widened range of host materials and types of single atoms create virtually limitless opportunities in the design of SACs with tunable structures and electrocatalysis behaviors. In this review, the recent progress of non‐carbon‐supported SACs for both oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is visited, where the unique local structures, electrocatalytic performance, catalytic centers and key preparation processes are presented. The characterizations down to atomic scales that can reveal the key local structures and catalytic mechanism are also investigated. New insights into the correlations between the structural evolution of these SACs during electrocatalytic reactions and their catalytic performance are examined. Finally, the major challenges faced by these new SACs are summarized, together with future perspectives on the rational design of superior non‐carbon‐supported SACs.

show abstract

Recent developments in the use of single-atom catalysts for water splitting

Cited by 55 publications

References 197 publications

Recent progress in ZnCo₂O₄and its composites for energy storage and conversion: a review

Recent progress in ZnCo₂O₄and its composites for energy storage and conversion: a review

Anionic and Cationic Co-Substitutions of S into Vertically Aligned WTe₂ Nanosheets as Catalysis for Hydrogen Evolution under Alkaline Conditions

SACs on Non‐Carbon Substrates: Can They Outperform for Water Splitting?

Contact Info

Product

Resources

About

Recent developments in the use of single-atom catalysts for water splitting

Cited by 55 publications

References 197 publications

Recent progress in ZnCo2O4and its composites for energy storage and conversion: a review

Recent progress in ZnCo2O4and its composites for energy storage and conversion: a review

Anionic and Cationic Co-Substitutions of S into Vertically Aligned WTe2 Nanosheets as Catalysis for Hydrogen Evolution under Alkaline Conditions

SACs on Non‐Carbon Substrates: Can They Outperform for Water Splitting?

Contact Info

Product

Resources

About

Recent progress in ZnCo₂O₄and its composites for energy storage and conversion: a review

Recent progress in ZnCo₂O₄and its composites for energy storage and conversion: a review

Anionic and Cationic Co-Substitutions of S into Vertically Aligned WTe₂ Nanosheets as Catalysis for Hydrogen Evolution under Alkaline Conditions