Results 61 to 70 of about 30,054 (297)

Poly(indole-6-carboxylic acid)/Carbon Composite as the Matrix for the Immobilization of the Phenanthroline Metal Complexes, and the Use of the Composites as Electrocatalyst for Oxygen Reduction Reaction

International Journal of Electrochemical Science, 2016
Two new none-precious metal electro-catalyst for the reduction of oxygen (ORR) were prepared by a facile method, which is characterized by the sequential procedure including oxidation polymerization, chemical coupling and ion complexation reactions etc ...
Xilin Wang, Min Wang, Xiuping Ju, Yan Zhang, Jinsheng Zhao, Junhong Zhang   +5 more
doaj   +1 more source

Characterization and Electrocatalytic Performance of Molasses Derived Co-Doped (P, N) and Tri-Doped (Si, P, N) Carbon for the ORR

Electrochem, 2021
There is a growing need to develop sustainable electrocatalysts to facilitate the reduction of molecular oxygen that occurs at the cathode in fuel cells, due to the excessive cost and limited availability of precious metal-based catalysts.
Samantha Macchi, Fumiya Watanabe, Tito Viswanathan, Noureen Siraj   +3 more
doaj   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

Oxygen reduction in acid media: influence of the heat treatment on the FeNPc(1–20 isomer mixture impregnated on carbon blacks and active charcoals [PDF]

, 1992
Oxygen reduction with the aid of a number of FeNPc(1–2) impregnated carbon supports in sulphuric acid solutions has been investigated.\ud \ud Loading of the carbon samples amounted to about 10 wt.%.
Biloul, A., Contamin, O., Coowar, F., Ham, D. van den, Riga, J., Savy, M., Scarbeck, G., Verbist, J.J.   +7 more
core   +2 more sources

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

Advanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil, Celia Castillo‐Blas, Dawid Krystian Feler, Isabel Gómez‐Recio, Miguel Tinoco, Ana Querejeta‐Fernández, Rodrigo González‐Prieto, Felipe Gándara, Romualdo Santos Silva Jr, Pilar Ferrer, Carlos Prieto, Luc Lajaunie, José Luis Martinez‐Peña, María Luisa Ruiz‐González, José María González‐Calbet   +14 more
wiley   +1 more source

2D Nanomaterials Toward Function‐Ready Superlubricity in Advanced Microsystems

Advanced Materials, EarlyView.
A unified framework links structural and transformation superlubricity with microsystem functions and deployment requirements. Mechanisms, device architectures, integration strategies, AI‐guided discovery, and benchmarking protocols are connected to define function‐ready superlubricity in advanced microsystems.
Yushan Geng, Jun Yang, Yong Yang
wiley   +1 more source

Uniform secondary current distribution at disk electrodes under Tafel kinetics enabled by concentric current-shielding rings

Electrochemistry Communications
Non-uniform secondary current distribution at rotating disk electrodes (RDE) is a common problem when using resistive electrolyte media or large applied currents.
Vaishnavi Sree Jeganathan, Rohan Akolkar
doaj   +1 more source

Investigation of Electrochemical Dissolving the Amorphous and Nanocrystal Alloys by a Rotating Disk Electrode [PDF]

MATEC Web of Conferences, 2019
The electrochemical processing characterized by the absence of force and heat effect on the processed material provides favorable conditions for maintaining unique properties of amorphous and nanocrystal alloys during processing.
Rakhimyanov Konstantin, Ivanova Maria, Rakhimyanov Andrey   +2 more
doaj   +1 more source

Application of the impedance model of de Levie for the characterization of porous electrodes [PDF]

, 2002
From the de Levie's theory for a porous electrode, the impedance can be expressed in function of the cylindrical pore characteristics: the pore length, the pore radius and the number of pores.
Barcia, Oswaldo Esteves, D'Elia, Eliane, Frateur, Isabelle, Mattos, Oscar Rosa, Pébère, Nadine, Tribollet, Bernard   +5 more
core   +3 more sources

Recent Advances in Electrospun Nanofibers for Triboelectric Nanogenerators: Performance Enhancement Strategies and Emerging Applications

Advanced Materials, EarlyView.
This review highlights recent advances in electrospun nanofiber‐based triboelectric nanogenerators, emphasizing how material design, fiber architecture, and interface engineering collectively enhance output performance and mechanical durability. Key developments in porous, aligned, core‐shell, and hierarchical nanofibers are discussed alongside ...
MD Fajla Rabbi, Jee Hwan Ahn, Duy Linh Vu, Kyoung Kwan Ahn   +3 more
wiley   +1 more source