Efficient FeCoNiCuPd thin-film electrocatalyst for alkaline oxygen and hydrogen evolution reactions

Wang, Shiqi; Xu, Bangli; Huo, Wenyi; Feng, Hanchen; Zhou, Xuefeng; Fang, Feng; Xie, Zonghan; Shang, Jian Ku; Jiang, Jianqing

doi:10.1016/j.apcatb.2022.121472

Cited by 172 publications

(92 citation statements)

References 53 publications

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“…The wettability of the obtained catalyst is indicated by the profile of the water drop (10 μL) on the material surface, and it is clearly seen that the contact angles (CA) of NF (Figure S17a) and Ni 3 S 2 /HPNF (Figure S17b) are all larger than 90°, indicating their hydrophobic property. On the contrary, the wettability of Pd 4 S-Ni 3 S 2 /HPNF (78.9°, Figure S17c) is significantly improved, and the more hydrophilic surface of the Pd 4 S-Ni 3 S 2 sample can lead to the formation of richer contact points near the reactive sites, , thereby improving the reaction kinetics of the HER process. The biphase, multidimensional morphologies of Pd 4 S-Ni 3 S 2 /HPNF obviously increase the surface reactive area, which can be indicated by the calculated C dl . As shown in Figure S18, the C dl of Pd 4 S-Ni 3 S 2 /HPNF is about 6.8 mF/cm 2 , and it is far bigger than for the NF ( C dl : 2.3 mF/cm 2 ), HPNF ( C dl : 2.6 mF/cm 2 ), and Ni 3 S 2 /HPNF ( C dl : 5.6 mF/cm 2 ) samples, manifesting that a higher HER performance is achieved for the Pd 4 S-Ni 3 S 2 /HPNF catalyst. The lower electrochemical impedance of Pd 4 S-Ni 3 S 2 /HPNF boosts the transfer rate of the electron in the electrocatalytic process, resulting in the observed high HER activity. The theory calculations confirm that the synergistic effect between the Pd 4 S and Ni 3 S 2 phases greatly decreases the Δ G H * , thus causing faster HER kinetics for water splitting. The in situ detecting technique discloses that the phase doping of Pd 4 S facilitates the water adsorption on the Pd site and weakens the S–H ads bond, thereby accelerating the HER kinetics for H 2 generation. …”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Heterostructured Palladium–Nickel Sulfide on Plasma-Activated Nickel Foil for Robust Hydrogen Evolution

Liu

Chen

Zhang

et al. 2022

ACS Sustainable Chem. Eng.

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Transition-metal sulfides are among the effective electrocatalyst candidates for H 2 evolution (HER); however, they still cannot compete with Pt-based electrodes for renewable energy applications. To overcome this issue, grid-matched palladium−nickel sulfides (Pd 4 S/Ni 3 S 2 ) are successfully engineered on the holey surface of nickel foil (HNF), which is first treated with a non-thermal plasma (HPNF) generated by a dielectric barrier discharge. The synthesized heterogeneous Pd 4 S-Ni 3 S 2 /HPNF catalyst results in the electron redistribution on the phase interfaces, enhancing the desorption ability of H* species. Consequently, Pd 4 S-Ni 3 S 2 /HPNF presents a high HER activity, and the overpotentials for generating 10 (j 10 ) and 500 (j 500 ) mA/cm 2 are about 44 and 247 mV. Meanwhile, the catalyst retains good electrocatalytic stability over 50 h at j 100 . In addition, the H 2 amount of Pd 4 S-Ni 3 S 2 /HPNF driven by the current j 10 can reach 11.25 mmol/h, which is competitive with other presently available high-performance electrocatalysts. The theory and in situ Raman spectroscopy results indicate that Pd 4 S and the heterointerfaces between the Pd 4 S and Ni 3 S 2 phases are the main active catalytic sites for H 2 evolution and that the Pd weakens the S−H ads bonds, enhancing the reactive kinetics of the Volmer and Heyrovsky steps. This work provides a new and green approach for engineering highly active and stable electrocatalysts for clean hydrogen production.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Heterostructured Palladium–Nickel Sulfide on Plasma-Activated Nickel Foil for Robust Hydrogen Evolution

Liu

Chen

Zhang

et al. 2022

ACS Sustainable Chem. Eng.

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“…[89] Similarly, Fang determined the PDOSs of each element to clarify the electronic structure of the FeCoNiCuPd shown in Figure 3g. [90] Last, but certainly not least, is the charge density difference, which helps understand the spatial distribution of electron density in the electrocatalyst structure. [91] Figure 3h is available for demonstrating the charge transfer due to the apparent electron depletion of Fe sites for the H 2 O adsorption, which was beneficial to the HER activity.…”

Section: Density Of States and Band Structurementioning

confidence: 99%

High‐Entropy Catalyst—A Novel Platform for Electrochemical Water Splitting

Zhai

Ren

Wang

et al. 2022

Adv Funct Materials

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High‐entropy materials (HEMs) have been in the spotlight as emerging catalysts for electrochemical water splitting. In particular, HEM catalysts feature multi‐element active sites and unsaturated coordination as well as entropy stabilization in comparison with their single‐element counterparts. Herein, a comprehensive overview of HEM catalysts used in electrochemical water splitting is provided, covering both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Particularly, the review begins with discussions of the concept and structure of HEMs. In addition, effective strategies for rationally designing HEMs on the basis of computational techniques and experimental aspects is described. Importantly, the importance of computationally aided methods, that is, density functional theory calculations, high‐throughput screening, and machine learning, to the discovery and design of HEMs, is described. Furthermore, the applications of HEMs in the field of water electrolysis are reviewed. Eventually, an outlook regarding the prospects and future opportunities for HEMs is provided.

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“…[ 21,25–28 ] The combinatorial properties of HEAs have been applied in catalysis and electrocatalysis. [ 21,29–40 ] The various types of HEA catalysts exhibit a synergistic effect to improve the HER performance greatly. [ 30–40 ] Determining the proper component and composition is the core of developing HEA catalysts.…”

Section: Introductionmentioning

confidence: 99%

“…[ 21,29–40 ] The various types of HEA catalysts exhibit a synergistic effect to improve the HER performance greatly. [ 30–40 ] Determining the proper component and composition is the core of developing HEA catalysts. Alloying of TMDs with various metal components can provide a platform for testing the benefits of HEA electrocatalysts.…”

Section: Introductionmentioning

confidence: 99%

MoSe₂–VSe₂–NbSe₂ Ternary Alloy Nanosheets to Boost Electrocatalytic Hydrogen Evolution Reaction

et al. 2022

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Alloying of transition metal dichalcogenides (TMDs) is a pioneering method for engineering electronic structures with expanded applications. In this study, MoSe2–VSe2–NbSe2 ternary alloy nanosheets are synthesized via a colloidal reaction. The composition is successfully tuned over a wide range to adjust the 2H–1T phase transition. The alloy nanosheets consist of miscible atomic structures at all compositions, which is distinct from immiscible binary alloys. Compared to each binary alloy, the ternary alloys display higher electrocatalytic activity toward the hydrogen evolution reaction (HER) in an acidic electrolyte. The HER performance exhibits a volcano‐type composition dependence, which is correlated with the experimental d‐band center (εd). Spin‐polarized density functional theory (DFT) calculations consistently predict the homogenous atomic distributions. The Gibbs free energy of H adsorption (ΔGH*) and the activation barrier (Ea) support that miscible ternary alloying greatly enhances the HER performance.

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Efficient FeCoNiCuPd thin-film electrocatalyst for alkaline oxygen and hydrogen evolution reactions

Cited by 172 publications

References 53 publications

Heterostructured Palladium–Nickel Sulfide on Plasma-Activated Nickel Foil for Robust Hydrogen Evolution

Heterostructured Palladium–Nickel Sulfide on Plasma-Activated Nickel Foil for Robust Hydrogen Evolution

High‐Entropy Catalyst—A Novel Platform for Electrochemical Water Splitting

MoSe₂–VSe₂–NbSe₂ Ternary Alloy Nanosheets to Boost Electrocatalytic Hydrogen Evolution Reaction

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Efficient FeCoNiCuPd thin-film electrocatalyst for alkaline oxygen and hydrogen evolution reactions

Cited by 172 publications

References 53 publications

Heterostructured Palladium–Nickel Sulfide on Plasma-Activated Nickel Foil for Robust Hydrogen Evolution

Heterostructured Palladium–Nickel Sulfide on Plasma-Activated Nickel Foil for Robust Hydrogen Evolution

High‐Entropy Catalyst—A Novel Platform for Electrochemical Water Splitting

MoSe2–VSe2–NbSe2 Ternary Alloy Nanosheets to Boost Electrocatalytic Hydrogen Evolution Reaction

Contact Info

Product

Resources

About

MoSe₂–VSe₂–NbSe₂ Ternary Alloy Nanosheets to Boost Electrocatalytic Hydrogen Evolution Reaction