Anion-induced morphological regulation of cupric oxide nanostructures and their application as co-catalysts for solar water splitting

Vo, Truong‐Giang; Chang, Shu-Ju; Chiang, Chia‐Ying

doi:10.1039/c9dt04626g

Cited by 12 publications

(2 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some of the solutions presented in previous reports, such as controlling the morphology, [ 104–110 ] doping, or modification with elements, [ 111–115 ] and the formation of a heterojunction, [ 116–123 ] are considered as appropriate approaches to promote the photocatalytic activity of CuO. The effects of some of them are described in the following sections.…”

Section: Introductionmentioning

confidence: 99%

Photoelectrochemical Water‐Splitting Using CuO‐Based Electrodes for Hydrogen Production: A Review

et al. 2021

View full text Add to dashboard Cite

The cost‐effective, robust, and efficient electrocatalysts for photoelectrochemical (PEC) water‐splitting has been extensively studied over the past decade to address a solution for the energy crisis. The interesting physicochemical properties of CuO have introduced this promising photocathodic material among the few photocatalysts with a narrow bandgap. This photocatalyst has a high activity for the PEC hydrogen evolution reaction (HER) under simulated sunlight irradiation. Here, the recent advancements of CuO‐based photoelectrodes, including undoped CuO, doped CuO, and CuO composites, in the PEC water‐splitting field, are comprehensively studied. Moreover, the synthesis methods, characterization, and fundamental factors of each classification are discussed in detail. Apart from the exclusive characteristics of CuO‐based photoelectrodes, the PEC properties of CuO/2D materials, as groups of the growing nanocomposites in photocurrent‐generating devices, are discussed in separate sections. Regarding the particular attention paid to the CuO heterostructure photocathodes, the PEC water splitting application is reviewed and the properties of each group such as electronic structures, defects, bandgap, and hierarchical structures are critically assessed.

show abstract

Section: Introductionmentioning

confidence: 99%

Photoelectrochemical Water‐Splitting Using CuO‐Based Electrodes for Hydrogen Production: A Review

et al. 2021

View full text Add to dashboard Cite

show abstract

“…In contrast, particles nucleate more quickly in nitrate and chloride salt environments, forming smaller particles or agglomerates. 14) To confirm the impact of different anion salts on the element distribution and atomic ratio of the material surface, the EDX analysis of the samples produced by different iron salts is given (Fig. 2).…”

Section: Resultsmentioning

confidence: 99%

MOF-Derived FeCo-Based Layered Double Hydroxides for Oxygen Evolution Reaction

Zheng,

Gaikwad,

Kim

2023

Korean. J. Mater. Res.

View full text Add to dashboard Cite

Exploring earth-abundant, highly effective and stable electrocatalysts for electrochemical water splitting is urgent and essential to the development of hydrogen (H 2 ) energy technology. Iron-cobalt layered double hydroxide (FeCo-LDH) has been widely used as an electrocatalystfor OER due to its facile synthesis, tunable components, and low cost. However, LDH synthesized by the traditional hydrothermal method tends to easily agglomerate, resulting in an unstable structure that can change or dissolve in an alkaline solution. Therefore, studying the real active phase is highly significant in the design of electrochemical electrode materials. Here, metal-organic frameworks (MOFs) are used as template precursors to derive FeCo-LDH from different iron sources. Iron salts with different anions have a significant impact on the morphology and charge transfer properties of the resulting materials. FeCo-LDH synthesized from iron sulfate solution (FeCo-LDH-SO 4 ) exhibits a hybrid structure of nanosheets and nanowires, quite different from other electrocatalysts that were synthesized from iron chloride and iron nitrate solutions. The final FeCo-LDH-SO 4 had an overpotential of 247 mV with a low Tafel-slope of 60.6 mV dec -1 at a current density of 10 mA cm -2 and delivered a long-term stability of 40 h for the OER. This work provides an innovative and feasible strategy to construct efficient electrocatalysts.

show abstract

Exploring Advanced Oxygen Reduction Reaction Electrocatalysts: The Potential of Metal‐Free and Non‐Pyrolyzed Covalent Organic Frameworks

Martínez‐Fernández,

Segura

2024

ChemSusChem

View full text Add to dashboard Cite

Oxygen reduction reaction (ORR) electrocatalysis is an area of increasing interest for the in‐situ production of H2O2 or the development of energy‐related devices such as hydrogen fuel cells. Although pyrolyzed catalysts still offer the best performances to date with reference to the organic‐based catalysts, metal‐free and non‐pyrolyzed covalent organic frameworks (COFs) stands out as promising alternatives candidates due to their favourable characteristics such as crystallinity, porosity, and organic composition, allowing the study of structural‐property relationships. Herein, we present the design principles and recent advances in COFs‐based ORR electrocatalysts, demonstrating how composition influences the activity and electronic pathway of the oxygen reduction process.

show abstract

Anion-induced morphological regulation of cupric oxide nanostructures and their application as co-catalysts for solar water splitting

Abstract: Modulating the morphological structure evolution of copper-based materials was accomplished by varying anion species in electroplating solution. The correlation between the surface morphology and their electrochemical behavior was investigated.

Cited by 12 publications

References 72 publications

Photoelectrochemical Water‐Splitting Using CuO‐Based Electrodes for Hydrogen Production: A Review

Photoelectrochemical Water‐Splitting Using CuO‐Based Electrodes for Hydrogen Production: A Review

MOF-Derived FeCo-Based Layered Double Hydroxides for Oxygen Evolution Reaction

Exploring Advanced Oxygen Reduction Reaction Electrocatalysts: The Potential of Metal‐Free and Non‐Pyrolyzed Covalent Organic Frameworks

Contact Info

Product

Resources

About