Greenly Synthesized CoPBA@PANI as a Proficient Electrocatalyst for Oxygen Evolution Reaction and Its Green Sustainability Assessments

Umapathy, Krishnan; Muthamildevi, Murugan; Thiruvengadam, Dhanasingh; Vijayarangan, Murugan; Rajan, Kuppusamy; Jayabharathi, Jayaraman

doi:10.1021/acs.langmuir.4c01023

Langmuir

2024

DOI: 10.1021/acs.langmuir.4c01023

|View full text |Cite

Greenly Synthesized CoPBA@PANI as a Proficient Electrocatalyst for Oxygen Evolution Reaction and Its Green Sustainability Assessments

Krishnan Umapathy,

Murugan Muthamildevi,

Dhanasingh Thiruvengadam

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article2

Relationship

Self Cite0

Independent2

Authors

Journals

Cited by 2 publications

References 68 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Unveiling the Multifunction of SCoFeCS: Remarkably Boosting Electrocatalytic Activity in Renewable Energy-Powered Overall Alkaline Water Splitting

Davidrichetson,

Dhanasingh,

Nithiasri

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

We developed core−shell structured (CS) CoFe hydroxides coated by a defective RGO shell via solvothermal (SCoFeCS) and hydrothermal (HCoFe@RGO) methods. SCoFeCS provided more active sites with a transmissive corridor and high conductivity, with a large surface area, to ameliorate the catalytic efficiency. The optimal SCoFeCS displays exceptional trifunctional properties for H 2 and O 2 evolution, UOR, and MSWO at low potentials (OER: 299 mV; 112 mV dec −1 , UOR: 1.40 V; 72 mVdec −1 , and MSWO: 1.50 V; 82 mVdec −1 ). SCoFeCS shows higher catalytic efficiency than HCoFe@RGO (359 mV; 299 mV dec −1 ) due to strong synergistic coupling between CoFe and the rGO matrix. The calculated areas under MOOH formation peaks for SCoFeCS,

show abstract

Unveiling the Multifunction of SCoFeCS: Remarkably Boosting Electrocatalytic Activity in Renewable Energy-Powered Overall Alkaline Water Splitting

Davidrichetson,

Dhanasingh,

Nithiasri

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

show abstract

Greenly Synthesized Conducting Polymer Nanotunnels with Metal-Hydroxide Nanobundles in Single Dais for Unmitigated Water Oxidation

Rajan,

Thiruvengadam,

Umapathy

et al. 2024

Langmuir

View full text Add to dashboard Cite

Electrochemical water splitting required efficient electrocatalysts to produce clean hydrogen fuel. Here, we adopted greenway coprecipitation (GC) method to synthesize conducting polymer (CP) nanotunnel network affixed with luminal−abluminal CoNi hydroxides (GC-CoNiCP), namely, GC-Co 1 Ni 2 CP, GC-Co 1.5 Ni 1.5 CP, and GC-Co 2 Ni 1 CP. The active catalyst, GC-Co 2 Ni 1 CP/GC, has low oxygen evolution reaction (OER) overpotential (307 mV) and a smaller Tafel slope (47 mV dec −1 ) than IrO 2 (125 mV dec −1 ). The electrochemical active surface area (EASA) normalized linear sweep voltammetry (LSV) curve exhibited outstanding intrinsic activity of GC-Co 2 Ni 1 CP, which required 285 mV to attain 10 mA cm −2 . At 1.54 V, the estimated turnover frequency (TOF) of GC-Co 2 Ni 1 CP/GC (0.017337 s −1 ) was found to be 3-fold higher than that of IrO 2 (0.0014 s −1 ). Furthermore, the GC-Co 2 Ni 1 CP/NF consumed a very low overpotential (281 mV) with a small Tafel slope of 121 mV dec −1 . The ultrastability of GC-Co 2 Ni 1 CP for industrial application was confirmed by durability at 10 and 100 mA cm −2 for the OER (GC/NF-8 h, 2.0%/100 h, 2.2%) and overall water splitting (100 h, 3.8%), which implies that GC-Co 2 Ni 1 CP had adequate kinetics to address the elevated rates of water oxidation. The effect of pH and addition of tetramethylammonium cation (TMA + ) reveal that GC-Co 2 Ni 1 CP follows the lattice oxygen mechanism (LOM). The solar-powered water electrolysis at 1.55 V supports the efficacy of GC-Co 2 Ni 1 CP in the solar-to-hydrogen conversion. The environmental impact studies and solar-driven water electrolysis proved that GC-CoNiCP has excellent greenness and efficiency, respectively.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Greenly Synthesized CoPBA@PANI as a Proficient Electrocatalyst for Oxygen Evolution Reaction and Its Green Sustainability Assessments

Cited by 2 publications

References 68 publications

Unveiling the Multifunction of SCoFeCS: Remarkably Boosting Electrocatalytic Activity in Renewable Energy-Powered Overall Alkaline Water Splitting

Unveiling the Multifunction of SCoFeCS: Remarkably Boosting Electrocatalytic Activity in Renewable Energy-Powered Overall Alkaline Water Splitting

Greenly Synthesized Conducting Polymer Nanotunnels with Metal-Hydroxide Nanobundles in Single Dais for Unmitigated Water Oxidation

Contact Info

Product

Resources

About