Abstract

The Photo-Enhanced Electrocatalytic Method of Oxygen Evolution Reaction (OER) Shows Promise for Enhancing the Effectiveness of Clear Energy Generation through Water Splitting by using Renewable and Sustainable Source of Energy. However, Despite Benefits of Photo electrocatalytic (PEC) Water Splitting, its Uses Are Constrained by its Low Efficiency as a Result of Charge Carrier Recombination, a Large overpotential, and Sluggish Reaction Kinetics. Here, We Illustrate that Nickel Telluride (NiTe) Synthesized by Hydrothermal Methods Can Function as an Extremely Effective Photo-Coupled Electrochemical Oxygen Evolution Reaction (POER) Catalyst. in This Study, NiTe Was Synthesized by Hydrothermal Method at 145°C within Just an Hour of Reaction Time. in Dark Conditions, the NiTe Deposited on Carbon Cloth Substrate Shows a Small Oxygen Evolution Reaction overpotential (261 MV) at a Current Density of 10 MA Cm–2, a Reduced Tafel Slope (65.4 MV Dec−1), and Negligible Activity Decay after 12 H of Chronoamperometry. by Virtue of its Enhanced Photo Response, Excellent Light Harvesting Ability, and Increased Interfacial Kinetics of Charge Separation, the NiTe Electrode under Simulated Solar Illumination Displays Exceptional Photoelectrochemical Performance Exhibiting overpotential of 165 MV at Current Density of 10 MA Cm-2, Which is About 96 MV Less Than on Dark Conditions. in Addition, Density Functional Theory Investigations Have Been Carried Out on the NiTe Surface, the Results of Which Demonstrated a Greater Adsorption Energy for Intermediate -OH on the Catalyst Site. Since the -OH Adsorption on the Catalyst Site Correlates to Catalyst Activation, It Indicates the Facile Electrocatalytic Activity of NiTe Owing to Favorable Catalyst Activation. DFT Calculations Also Revealed the Facile Charge Density Redistribution Following Intermediate -OH Adsorption on the NiTe Surface. This Work Demonstrates that Arrays of NiTe Elongated Nanostructure Are a Promising Option for Both Electrochemical and Photo electrocatalytic Water Oxidation and Offers Broad Suggestions for Developing Effective PEC Devices.

Department(s)

Chemistry

Comments

National Science Foundation, Grant CAS-2155175

International Standard Serial Number (ISSN)

2296-2646

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2024 The Authors, All rights reserved.

Creative Commons Licensing

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.

Publication Date

01 Jan 2024

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