Investigation of Nb2AlC Max Phase Integrated With 2D GCN (Nb‐MX/GCN) as a Bifunctional Electrocatalyst for Water Splitting Reaction DOI Open Access

V. Sridevi,

N. Abirami,

R. Arulmozhi

et al.

ChemistrySelect, Journal Year: 2024, Volume and Issue: 9(46)

Published: Dec. 1, 2024

Abstract Noble metal‐based electrocatalysts are impractical for large‐scale manufacture due to their high cost, limited availability, and poor long‐term stability in performing several functions. Hence, an alternative is the need of hour that emphasizes blending metals ceramic property materials with compelling electroconductivity. In this research, we synthesized two bare materials, Nb 2 AlC MAX (Nb‐MX) phase graphitic carbon‐nitride (GCN) sheets using calcination method which then converted into a composite (Nb‐MX/GCN) material through wet impregnation technique. The electrochemical investigations were conducted assess catalytic efficacy material. Nb‐MX/GCN electrocatalyst exhibited outstanding electrocatalytic efficiency hydrogen evolution reaction (HER) oxygen (OER) alkaline environment. catalyst exhibits significantly low overpotential just 66 mV 450 HER OER performance, respectively, at current density 10 mA cm −2 1.0 M KOH solution. addition, activity no change over 24 h indicated excellent This performance surpassed previously reported electrocatalysts.

Language: Английский

Spark plasma sintering of Ti2AlC/TiC MAX-phase based composite ceramic materials and study of their electrochemical characteristics DOI
О. О. Шичалин, Nikita Ivanov, A. I. Seroshtan

et al.

Ceramics International, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 1, 2024

Language: Английский

Citations

8
Time-Resolved Fourier Transform Infrared Spectroelectrochemical Investigation of Nitrate Reduction to Ammonia DOI Creative Commons
David Kumar Yesudoss,

Bright Ngozichukwu,

Ibrahima Gning

et al.

ACS Energy Letters, Journal Year: 2025, Volume and Issue: unknown, P. 1688 - 1699

Published: March 14, 2025

Language: Английский

Citations

0
Comprehensive Review of MAX Phase and MXene Materials: Synthesis, Properties and Applications DOI Creative Commons

C. B. Subba,

P. Raics,

Mukhriddin E. Tursunov

et al.

Published: Jan. 7, 2025

In this paper, we present a detailed and comprehensive review of the MAX phase (bulk) their 2D derivative MXenes on basis synthesis, properties, applications. MAX/Mexene have emerged as class materials with tremendous potential for various applications in numerous emerging technologies. We thoroughly surveyed almost all relevant literature MAX/Mexene. provide report synthesis methods phases, including traditional innovative approaches such solid-state spark plasma sintering, highlighting structural compositional diversity. The unique physical, chemical, mechanical properties high thermal stability, electronic, magnetic, electrical conductivity, flexibility, are explored along underlying mechanism. Furthermore, highlights current research trend MXene advancement energy harvesting H\(_2\) production, solar cells, storage, catalysis, spintronics, electronic devices environmental remediation. Their added features damage tolerance, radiation heat crack-healing, exchangers, etc. addition, provides information future directions that utilize knowledge identify gaps. purpose is to facilitate advancements understanding application phases MXenes, positioning them pivotal next-generation

Language: Английский

Citations

0
Photoinduced Charge Transfer Empowers Ta4C3 and Nb4C3 MXenes with High SERS Performance DOI
Leilei Lan,

Ziheng Ni,

Caiye Zhao

et al.

Langmuir, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 25, 2024

This study introduces two-dimensional (2D) Ta

Language: Английский

Citations

2
Transition Metal-Based Polyoxometalates for Oxygen Electrode Bifunctional Electrocatalysis DOI Creative Commons
Jadranka Milikić, Filipe Gusmão, Sara Knežević

et al.

Batteries, Journal Year: 2024, Volume and Issue: 10(6), P. 197 - 197

Published: June 3, 2024

Polyoxometalates (POMs) with transition metals (Co, Cu, Fe, Mn, Ni) of Keggin structure and lamellar-stacked multi-layer morphology were synthesized. They subsequently explored as bifunctional electrocatalysts for oxygen electrodes, i.e., reduction (ORR) evolution (OER) reaction, aqueous rechargeable metal-air batteries in alkaline media. The lowest Tafel slope (85 mV dec−1) value the highest OER current density 93.8 mA cm−2 obtained Fe-POM electrocatalyst. Similar electrochemical catalytic activity was noticed Co-POM This behavior confirmed by impedance spectroscopy, where gave charge transfer resistance 3.35 Ω, followed Rct 15.04 during OER. Additionally, values 85 109 dec−1 calculated Co-POM, respectively, ORR. ORR at proceeded mixed two- four-electron pathways, while exclusively pathway. Finally, capacitance studies conducted on synthesized POMs.

Language: Английский

Citations

1
Nb-MXene as promising material for electrocatalysis in energy conversion (OER/ORR) and storage DOI
Meriene Gandara, Milena Nakagawa de Arruda, João Marcos Kruszynski de Assis

et al.

Applied Materials Today, Journal Year: 2024, Volume and Issue: 40, P. 102356 - 102356

Published: Aug. 1, 2024

Language: Английский

Citations

1
Investigation of Nb2AlC Max Phase Integrated With 2D GCN (Nb‐MX/GCN) as a Bifunctional Electrocatalyst for Water Splitting Reaction DOI Open Access

V. Sridevi,

N. Abirami,

R. Arulmozhi

et al.

ChemistrySelect, Journal Year: 2024, Volume and Issue: 9(46)

Published: Dec. 1, 2024

Abstract Noble metal‐based electrocatalysts are impractical for large‐scale manufacture due to their high cost, limited availability, and poor long‐term stability in performing several functions. Hence, an alternative is the need of hour that emphasizes blending metals ceramic property materials with compelling electroconductivity. In this research, we synthesized two bare materials, Nb 2 AlC MAX (Nb‐MX) phase graphitic carbon‐nitride (GCN) sheets using calcination method which then converted into a composite (Nb‐MX/GCN) material through wet impregnation technique. The electrochemical investigations were conducted assess catalytic efficacy material. Nb‐MX/GCN electrocatalyst exhibited outstanding electrocatalytic efficiency hydrogen evolution reaction (HER) oxygen (OER) alkaline environment. catalyst exhibits significantly low overpotential just 66 mV 450 HER OER performance, respectively, at current density 10 mA cm −2 1.0 M KOH solution. addition, activity no change over 24 h indicated excellent This performance surpassed previously reported electrocatalysts.

Language: Английский

Citations

0