Results 111 to 120 of about 11,617,565 (348)

Desenvolvimento e aplicação de células eletroquímicas em camada delgada

Química Nova, 1999
Theoretical and practical aspects concerning construction and use of a thin layer electrochemical cell are presented. Construction was realized by a simple technic and geometry was optimized in order to minimize the problems of electrical resistance.
Pernaut Jean Michel, Matencio Tullio
doaj  

Testing the Stability of NASICON Solid Electrolyte in Seawater Batteries

Energies
Rechargeable batteries play a crucial role in the utilization of renewable energy sources. Energy storage systems (ESSs) are designed to store renewable energy efficiently for immediate use. The market for energy storage systems heavily relies on lithium-
Mihaela Iordache, Anisoara Oubraham, Simona Borta, George Ungureanu, Adriana Marinoiu   +4 more
doaj   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Exploiting the Functionality of Cerium Oxide‐Modified Carbon Nanohorns Catalysts Toward Enhanced CO2 Reduction Performance

Advanced Functional Materials, EarlyView.
A cerium oxide‐carbon nanohybrid catalyst is synthesized via two distinct routes and is integrated into H‐type cells and gas diffusion layers (GDLs) to enhance electrochemical performance. Structural variations significantly affect performance, with the solvothermal sample exhibiting higher current densities.
Alessia Pollice, Michele Cacioppo, Miriam Marchi, Miriam Moro, Francesco Paolucci, Marcella Bonchio, Maurizio Prato, Giovanni Valenti, Michele Melchionna, Paolo Fornasiero   +9 more
wiley   +1 more source

Is Cell Viability Always Directly Related to Corrosion Resistance of Stainless Steels? [PDF]

, 2016
It has been frequently reported that cell viability on stainless steels is improved by increasing their corrosion resistance. The question that arises is whether human cell viability is always directly related to corrosion resistance in these biostable ...
Ghaffari, M., Salahinejad, E., Tayebi, Lobat, Vashaee, Daryoosh   +3 more
core   +1 more source

Modulating Electrochemical CO2 Reduction Pathways via Interfacial Electric Field

Advanced Functional Materials, EarlyView.
Engineering interfacial electric fields in Cu/ITO electrodes enables precise control of CO2 reduction pathways. Charge transfer from Cu to ITO generates positively charged Cu species that steer selectivity from ethylene toward methane. This work demonstrates how interfacial electric‐field modulation can direct reaction intermediates and transform ...
Mahdi Salehi, Zhengyuan Gao, Sai Phani Kumar Vangala, Amirhossein Farzi, Hamed Heidarpour, Morgan McKee, Nikolay Kornienko, Ali Seifitokaldani   +7 more
wiley   +1 more source

Microscale electrochemical cell using plaster (CaSO4) as liquid junction [PDF]

Maejo International Journal of Science and Technology, 2008
A microscale apparatus for electrochemical cell in which plaster (CaSO4) was used as liquid junction has been developed. A glass tube (0.5 cm ID x 5.0 cm) was used to prepare each half-cell. The potentials of the resulting galvanic cells were measured by
Yuthapong Udnan
doaj  

Challenges and Opportunities of Layered Cathodes of LiNixMnyCo(1-x-y)O2 for High-Performance Lithium-ion Batteries [PDF]

, 2019
High energy density lithium-ion batteries (LIBs) are widely demanded for portable electronic devices and electrical vehicles. Layered-structure LiCoO2 oxide (LCO) has been the most commonly used cathode material in commercial LIBs. Compared to LCO, LiNi1-
Frank, Jason
core   +2 more sources

CO2 Reduction on Copper‐Nitrogen‐Doped Carbon Catalysts Tuned by Pulsed Potential Electrolysis: Effect of Pulse Potential

Advanced Functional Materials, EarlyView.
This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán, Janis Timoshenko, Andrea Martini, Hyo Sang Jeon, Eduardo Ortega, Martina Rüscher, Arno Bergmann, Aram Yoon, Uta Hejral, Antonia Herzog, Clara Rettenmaier, Felix T. Haase, Philipp Grosse, Beatriz Roldan Cuenya   +13 more
wiley   +1 more source

Construção de uma célula-autoclave para medidas eletroquímicas a altas temperaturas

Química Nova, 2011
Measurements at high temperature using liquid solutions require special cells and materials which are able to support the temperature and pressure developed inside.
Elivelton Alves Ferreira, Ferminio Cesar Polachini, Cecílio Sadao Fugivara, Assis Vicente Benedetti   +3 more
doaj   +1 more source