Layered and two dimensional metal oxides for electrochemical energy conversion

Browne, Michelle P.; Sofer, Zdeněk; Pumera, Martin

doi:10.1039/c8ee02495b

Cited by 333 publications

(160 citation statements)

References 122 publications

Supporting

Mentioning

153

Contrasting

Unclassified

Order By: Relevance

“…Although these 2D materials are highly promising in both the OER and oxygen reduction reaction (ORR), their HER performance are too poor to comparable with that of most advanced 2D TMDs. [ 177–179 ]…”

Section: Comparison With Other Her Catalystsmentioning

confidence: 99%

Engineered 2D Transition Metal Dichalcogenides—A Vision of Viable Hydrogen Evolution Reaction Catalysis

Lin

Sherrell

Liu

et al. 2020

Advanced Energy Materials

202

174

View full text Add to dashboard Cite

Tackling global climate change and the energy crisis requires novel approaches in clean energy generation and efficient manufacturing. [1] Hydrogen (H 2 ) is one of the most popular clean energy sources, providing the highest energy outputThe hydrogen evolution reaction (HER) is an emerging key technology to provide clean, renewable energy. Current state-of-the-art catalysts still rely on expensive and rare noble metals, however, the relatively cheap and abundant transition metal dichalcogenides (TMDs) have emerged as exceptionally promising alternatives. Early studies in developing TMD-based catalysts laid the groundwork in understanding the fundamental catalytically active sites of different TMD phases, enabling a toolbox of physical, chemical, and electronic engineering strategies to improve the HER catalytic activity of TMDs. This report focuses on recent progress in improving the catalytic properties of TMDs toward highly efficient production of H 2 . Combining theoretical and experimental considerations, a summary of the progress to date is provided and a pathway forward for viable hydrogen evolution from TMD driven catalysis is concluded.

show abstract

Section: Comparison With Other Her Catalystsmentioning

confidence: 99%

Engineered 2D Transition Metal Dichalcogenides—A Vision of Viable Hydrogen Evolution Reaction Catalysis

Lin

Sherrell

Liu

et al. 2020

Advanced Energy Materials

202

174

View full text Add to dashboard Cite

show abstract

“…[8][9][10][11][12][13] Transition metal oxides and (oxy)hydroxides are the main alternative to noble metals as OER catalysts, reaching performances close to those of IrO2/RuO2 in alkaline media. 14,15 Additionally, several reports have claimed metal phosphides, [16][17][18] nitrides, [19][20][21][22] selenides 23,24 and sulfides [25][26][27][28] to be excellent OER catalysts. However, some of these compounds are thermodynamically unstable under harsh OER conditions and may suffer chemical transformation during operation.…”

Section: Introductionmentioning

confidence: 99%

In Situ Electrochemical Oxidation of Cu₂S into CuO Nanowires as a Durable and Efficient Electrocatalyst for Oxygen Evolution Reaction

et al. 2019

View full text Add to dashboard Cite

The development of cost-effective oxygen evolution catalysts is of capital importance for the deployment of large scale energy storage systems based on metal-air batteries and reversible fuel cells. In this direction, a wide range of materials have been explored, especially in more favorable alkaline conditions, and several metal chalcogenides have particularly demonstrated excellent performances. However, chalcogenides are thermodynamically less stable than the corresponding oxides and hydroxides under oxidizing potentials in alkaline media. While this instability in some cases has prevented the application of chalcogenides as oxygen evolution catalysts, and it has been disregarded in some other, we propose to use it in our favor to produce high performance oxygen evolution catalysts. We characterize here the in situ chemical, structural and morphological transformation during the oxygen evolution reaction (OER) in alkaline media of Cu2S into CuO nanowires (NWs), mediating the intermediate formation of Cu(OH)2. We also test their OER activity and stability under OER operation in alkaline media, and compare them with the OER performance of Cu(OH)2 and CuO nanostructures directly grown on the surface of a copper mesh. We demonstrate here that CuO produced during OER from Cu 2 S displays an extraordinary electrocatalytic performance toward OER, well above that of CuO and Cu(OH)2 synthesized mediating no OER in situ transformation.3

show abstract

“…[1,2] Despite the inherent good activity, most extensively used iridium and ruthenium-based OER electrocatalysts are scarce and expensive. [3,4] Therefore, developing earth-abundant and cost-effective alternatives are highly important and great challenging for the large-scale industrial applications of electrochemical water splitting.…”

mentioning

confidence: 99%

Nickel Foam‐Supported Amorphous FeCo(Mn)−O Nanoclusters with Abundant Oxygen Vacancies through Selective Dealloying for Efficient Electrocatalytic Oxygen Evolution

Wang

et al. 2020

ChemElectroChem

View full text Add to dashboard Cite

Developing earth‐abundant, cost‐effective and high‐performance electrocatalyst towards the oxygen evolution reaction (OER) is a great challenge for large‐scale hydrogen production from electrochemical water splitting. Nickel‐foam‐supported amorphous hierarchical nanoclusters of metal/metal (hydr)oxides with abundant oxygen defects (FeCo(Mn)−O/NF) were prepared from an FeCoMn/NF precursor through chemical dealloying. The FeCo(Mn)−O/NF electrode exhibits enhanced OER activity in alkaline electrolyte with an overpotential of only 235 mV to drive a current density of 10 mA cm−2, a small Tafel slope of 44.5 mV dec−1 and excellent durability over 100 h. The superior OER performance is attributed to the synergistic effect of abundant oxygen vacancies, hierarchical morphology and amorphous structure, which essentially modulate the electronic structures and create more active sites. These interesting findings highlight the significance of dealloying strategy on the structural defects and improved catalytic performance of the electrocatalysts.

show abstract

Layered and two dimensional metal oxides for electrochemical energy conversion

Abstract: The oxygen evolution and reduction reactions are two extremely important reactions in terms of energy applications.

Cited by 333 publications

References 122 publications

Engineered 2D Transition Metal Dichalcogenides—A Vision of Viable Hydrogen Evolution Reaction Catalysis

Engineered 2D Transition Metal Dichalcogenides—A Vision of Viable Hydrogen Evolution Reaction Catalysis

In Situ Electrochemical Oxidation of Cu₂S into CuO Nanowires as a Durable and Efficient Electrocatalyst for Oxygen Evolution Reaction

Nickel Foam‐Supported Amorphous FeCo(Mn)−O Nanoclusters with Abundant Oxygen Vacancies through Selective Dealloying for Efficient Electrocatalytic Oxygen Evolution

Contact Info

Product

Resources

About

Layered and two dimensional metal oxides for electrochemical energy conversion

Abstract: The oxygen evolution and reduction reactions are two extremely important reactions in terms of energy applications.

Cited by 333 publications

References 122 publications

Engineered 2D Transition Metal Dichalcogenides—A Vision of Viable Hydrogen Evolution Reaction Catalysis

Engineered 2D Transition Metal Dichalcogenides—A Vision of Viable Hydrogen Evolution Reaction Catalysis

In Situ Electrochemical Oxidation of Cu2S into CuO Nanowires as a Durable and Efficient Electrocatalyst for Oxygen Evolution Reaction

Nickel Foam‐Supported Amorphous FeCo(Mn)−O Nanoclusters with Abundant Oxygen Vacancies through Selective Dealloying for Efficient Electrocatalytic Oxygen Evolution

Contact Info

Product

Resources

About

In Situ Electrochemical Oxidation of Cu₂S into CuO Nanowires as a Durable and Efficient Electrocatalyst for Oxygen Evolution Reaction