Electrocatalytic activity of pristine and electrochemically activated SnSe2 nanoplates for the hydrogen evolution reaction

Ndala, Zakhele B.; Shumbula, Ndivhuwo P.; Nkabinde, Siyabonga S.; Kolokoto, Tshwarela; Gqoba, Siziwe; Linganiso, Cebisa; Moloto, Nosipho

doi:10.1016/j.jelechem.2022.116464

Cited by 6 publications

(2 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The stability of AuCu/CN-1% was evaluated at 785 mV vs RHE for a 12 h time scale by a chronoamperometry curve, which exhibited a rapid increase of current density in electrochemical hydrogen production, which confirmed that the catalyst was activated after continuous LSV scans, shown in Figure S4g. 43,44 These were demonstrated in that the H 2 production process was relatively easy for AuCu/ CN-1%. 45 Photoluminescence (PL) spectra of samples were collected, as shown in Figure 5d.…”

Section: ■ Results and Discussionmentioning

confidence: 96%

Nanoarchitectonics of g-C₃N₄ Nanosheets with a AuCu Enhancement Effect for Superior Photo- and Electrochemical Activity

Zhang

Xia

et al. 2022

Langmuir

View full text Add to dashboard Cite

AuCu alloy nanoparticles (NPs) were embedded in superior thin g-C3N4 nanosheets by a mechanochemical pre-reaction and subsequent thermal polymerization at high temperature. The introduction of AuCu NPs increased conductivity, decreased the band gap, expended light absorption, and improved the separation and transfer efficiencies of photogenerated electrons and holes. Moreover, the uniform distribution of AuCu NPs in g-C3N4 nanosheets is ascribed to the pre-reaction of bulk g-C3N4 and metal salts to create activity cites. The adsorption ability in the visible light region was improved due to the plasma effect of Au. AuCu/g-C3N4 composites (AuCu/CN-1%) with optimized component ratios revealed the highest transient photocurrent responses, the lowest electrochemical impedance arc radius, and the best photocatalytic H2 evolution rate of 930.2 μmol g–1 h–1. These findings exhibited that loading AuCu bimetallic NPs could efficiently offset some disadvantages of g-C3N4 and improve its photocatalytic performances.

show abstract

Section: ■ Results and Discussionmentioning

confidence: 96%

Nanoarchitectonics of g-C₃N₄ Nanosheets with a AuCu Enhancement Effect for Superior Photo- and Electrochemical Activity

Zhang

Xia

et al. 2022

Langmuir

View full text Add to dashboard Cite

show abstract

“…We find two optimal configurations, i.e., the upright triangle (UT-Cu 3 @MoSX) and flat triangle (FT-Cu 3 @MoSX) configurations. The substrate polarization is shown to reduce the absolute value of the limiting potentials (| U L |) of the overall CO 2 RR compared to the unpolarized Cu 3 @MoS 2 substrate − and boosts the CO 2 RR activity. The | U L | for Cu 3 (S)@MoSX is lower than that of Cu 3 (X)@MoSX, suggesting that the CO 2 RR performance strongly depends on the substrate polarization direction and strength.…”

Section: Introductionmentioning

confidence: 96%

Ab Initio Studies of Electrocatalytic CO₂ Reduction for Small Cu Cluster Supported on Polar Substrates

Yang,

Zou,

Zhang

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Small Cu clusters are excellent candidates for the electrocatalytic reduction of carbon dioxide (CO 2 RR), and their catalytic performance is expected to be significantly influenced by the interaction between the substrate and cluster. In this study, we systematically investigate the CO 2 RR for a Cu 3 cluster anchored on Janus MoSX (X = Se, Te) substrates using density functional theory calculations. These substrates feature a broken vertical mirror symmetry, which generates spontaneous outof-plane polarization and offers two distinct polar surfaces to support the Cu 3 cluster. Our findings reveal that the CO 2 RR performance on the Cu 3 cluster is strongly influenced by the polarization direction and strength of the MoSX (X = Se, Te) substrates. Notably, the Cu 3 cluster supported on the S-terminated MoSTe surface (Cu 3 (S)@MoSTe) demonstrates the highest CO 2 RR activity, producing methane. These results underscore the pivotal role of substrate polarization in modulating the binding strength of reactants and reaction intermediates, thereby enhancing the CO 2 RR efficiency.

show abstract

Layered metal chalcogenide of SnSe nanosheets integrated with 2D-hexagonal boron nitride for accurate and low-level detection of nitrofurazone

Thirumalraj

Sriram

Muthukutty

et al. 2023

Chemical Engineering Journal

View full text Add to dashboard Cite

Electrocatalytic activity of pristine and electrochemically activated SnSe2 nanoplates for the hydrogen evolution reaction

Cited by 6 publications

References 31 publications

Nanoarchitectonics of g-C₃N₄ Nanosheets with a AuCu Enhancement Effect for Superior Photo- and Electrochemical Activity

Nanoarchitectonics of g-C₃N₄ Nanosheets with a AuCu Enhancement Effect for Superior Photo- and Electrochemical Activity

Ab Initio Studies of Electrocatalytic CO₂ Reduction for Small Cu Cluster Supported on Polar Substrates

Layered metal chalcogenide of SnSe nanosheets integrated with 2D-hexagonal boron nitride for accurate and low-level detection of nitrofurazone

Contact Info

Product

Resources

About

Electrocatalytic activity of pristine and electrochemically activated SnSe2 nanoplates for the hydrogen evolution reaction

Cited by 6 publications

References 31 publications

Nanoarchitectonics of g-C3N4 Nanosheets with a AuCu Enhancement Effect for Superior Photo- and Electrochemical Activity

Nanoarchitectonics of g-C3N4 Nanosheets with a AuCu Enhancement Effect for Superior Photo- and Electrochemical Activity

Ab Initio Studies of Electrocatalytic CO2 Reduction for Small Cu Cluster Supported on Polar Substrates

Layered metal chalcogenide of SnSe nanosheets integrated with 2D-hexagonal boron nitride for accurate and low-level detection of nitrofurazone

Contact Info

Product

Resources

About

Nanoarchitectonics of g-C₃N₄ Nanosheets with a AuCu Enhancement Effect for Superior Photo- and Electrochemical Activity

Nanoarchitectonics of g-C₃N₄ Nanosheets with a AuCu Enhancement Effect for Superior Photo- and Electrochemical Activity

Ab Initio Studies of Electrocatalytic CO₂ Reduction for Small Cu Cluster Supported on Polar Substrates