Advanced searches left 3/3

Cathode And Anode - Europe PMC

Summarized by Plex Scholar
Last Updated: 11 January 2023

* If you want to update the article please login/register

Enhanced bio-electrochemical performance of microbially catalysed anode and cathode in a microbial electrosynthesis system.

The most popular bio-electrochemical circuits use biotic/abiotic electrode combinations, with platinum-based abiotic electrodes being the most common. In this research, a dual bio-catalysed MES system with a bacterial anode and cathode was tested and compared to a biotic cathode/abiotic anode array. BES results in MES-D increased BES performance in MES-D, with a 3. 9-fold rise in current density relative to that of MES-S, according to various bio-electrochemical studies. In MES-D for acetate, propionate, and butyrate, respectively, production in VORAL fatty acids increased 3. 2-, 4. 1-, and 1. 8-fold, respectively, as well as in MES-D for acetate, propionate, and butyrate. Both the bioanode and biocathode chambers' improved results of MES-D may have been due to the bacterial metabolism at the bioanode, which gave extra electrons, as well as continuing VFA production. On the MES-S cathode and anode, respectively, the enrichment of electroactive bacteria such as Probacteria, Bacteroidetes, and Firmicutes + Bacteroidetes was revealed.

Source link: https://europepmc.org/article/MED/36621685


Hierarchical V4C3TX@NiO-reduced graphene oxide heterostructure hydrogel and defective reduced graphene oxide hydrogel as free-standing anode and cathode for high-performance asymmetric supercapacitor

NiO nanosheets are hydrothermally applied to a V4 T X substrate and assembled into a 3D porous heterostructure hydrogel by a graphene oxide-assisted self-convergence hydrothermal process at low temperatures, which is then assembled into a 3D porous heterostructure hydrogel. para 1 u2212 1 at 1 A. g u2212 1 1. The resultant hierarchical V 4 C 3 T X @NiO-reduced graphene oxide hydrogel has an extremely high specific capacitance up to 1014. 5 F g. T x n g vs. 1, 3 T X @NiO-reduced graphene oxide hydrogel exhibits an extremely high specific capacitance up to 1014. 5 F g v t Separately, a mishandled graphene oxide hydrogel is prepared by a cost-effective hydrothermal process and cobalt-catalyzed gasification, resulting in a higher specific capacity than untreated RGO hydrogel.

Source link: https://europepmc.org/article/PPR/PPR589868


An advanced Ca/Zn hybrid battery enabled by the dendrite-free zinc anode and a reversible calcification/decalcification NASICON cathode.

The idea of hybrid ion batteries, which can combine the benefits of the single ion battery, opens up a new route for producing high-performance secondary batteries. This amazing pair gives full play to not only the superb diffusion dynamics of Ca 2+ in the NASICON system, but also the electrostatic shielding property of Ca 2+ with low reduction potential that minimizes the formation of zinc dendrites.

Source link: https://europepmc.org/article/MED/36585306


Tuning Cu-Content La 1-x Sr x Ni 1-y Cu y O 3-δ with Strontium Doping as Cobalt-Free Cathode Materials for High-Performance Anode-Supported IT-SOFCs.

Cu-content La 1-x Sr x Ni 1-y Cu y O 3-u03b4 perovskites with A-site strontium doping have been optimized as cobalt-free cathode materials for high-temperature SOFCs operating at an intermediate temperature range. HT-XRD reports show that the obtained oxides belong to the R -3 c trigonal system, and that phase shifts from the R -3 c space group to a Pm -3 m simple perovskite have been observed by HT-XRD experiments. The substitution of lanthanum with strontium lowers the phase transition temperature, while increasing the thermal expansion coefficient and oxygen non-stoichiometry u03b4 of the tested materials. In a humidified H2 at 650 ° C, a La 0. 95 Sr 0. 05 Ni 0. 5 O 3-u03b4 cathode has an excellent power density of 445 mW -2, a ti 0-24.

Source link: https://europepmc.org/article/MED/36556543


Investigation of an electrolysis system with boron-doped diamond anode and gas diffusion cathode to remove water micropollutants.

MPs degradation can be efficiently achieved by a cell made up of an anode as a boron-doped diamond electrode and a gas diffusion cathode without a separator in this series. It was reported that applying a low current density and increasing the Reynolds number of the electrolyte flow through the cell at the laminar range both increased the treatment time by 3-fold at the same energy demand, according to different operating conditions. Although considering the need for further reduction of the energy demand, the results indicate that the tested electrolysis method in removing MPs in wastewater removes MPs from wastewater.

Source link: https://europepmc.org/article/MED/36579881


Tuning Cu-Content La1−xSrxNi1−yCuyO3−δ with Strontium Doping as Cobalt-Free Cathode Materials for High-Performance Anode-Supported IT-SOFCs

Cu-content La1u2212xSrxNi1u2212xU221212xu2312xU2312xU2212xu2212x U31212x. u2312xu2212yCuyO3u221212yU2212yCuyO3u2212xu221212yTu2212xU2212xu221212xu221212y curichO3u221212xU221212xCrxSrxU221212121212121212121212121212121212121212121212121212121212121212121212121212121212121212xu22121212121212121212121212121212121212121212121212121212121212121212121212121212xU2212121212121212121312121212121216121212121212yC4-u221212yCu1•u The phase transition temperature is reduced by the substitution of lanthanum with strontium, while increasing the thermal expansion coefficient and oxygen non-stoichiometry of the tested materials is higher. The results show that La1srxNi2112xSrxNi2112yU2312yCuyO3u20212u0312-1212 perovskites with strontium doping at the A-site can be classified as promising cathode candidates for anode-supported SOFCs, with promising electrochemical results in the intermediate temperature range.

Source link: https://europepmc.org/article/MED/PMC9782004


Manipulating OH - -Mediated Anode-Cathode Cross-Communication Toward Long-Life Aqueous Zinc-Vanadium Batteries.

Zn anode and NaV 3 O 8 o 2 O cathode. The original cyclability issue of V-based AZIBs is addressed herein. Al 2 3 is suggested as a useful electrolyte additive to manipulate OH -mediated cross-communication between Zn anode and NaV3 O 8 -c5 1. 5H 2 O cathode. A remarkable improvement is due to Al 3+ adsorption and solid electrolyte interphase formation, which have unexpectedly extended the anode lifespan from 200 to 1000 h.

Source link: https://europepmc.org/article/MED/36437231


Highly promoted solvent-co-intercalation process in pencil graphite anode and Na 3 V 2 (PO 4 ) 3 cathode in full-cell Na-ion battery.

In both Na-ion half and full-cell assemblies, the electrochemical results of graphite recovered from 6H-pencil with the highest SiO 2 content is assessed. By manufacturing cells with electrolytes based on tetraethylene glycol dimethyl ether and diethylene glycol dimethyl ether, the idea of sodium co-intercalation into graphite is exploited. Both in half and full cells, G2-based electrolyte is used, as the capacity at high current rates is highest when used, but in a G4-based system, capacity retention is improved. Although G2 based systems has greater capacity retention in half-cell, a G4 based system has higher capacity retention in full cell. According to s. g. , the complete cell with G4 and G2 electrolytes shows maximum energy/power densities of 33 Wh kg -1 / 1. 2 kW kg -1 and 23 Wh kg -1 / 1. 2 kW kg -1 and 23 Wh kg -1 and 23 Wh kg -1 and 23 Wh kg -1 / 1. 91 kW kg -1 and 23 Wh kg -1 1/1. 1 kW kg -1 and 23 Wh kg -1 and 23 Wh 1/1. 4 -1 and G4 and G4 and G4 and G4 and G4 and power densities of 33 Wh kg -1 and 23 Wh kg 1/1/1. 4 1/1/1. 1 -1 and 1/1/1 1/1 1/1/1. 4 1/1/1 1/1/1/1. 4 1/1 1/1. 4 1/1/1. 1 1/1. 2 1/1. 1 1/1. 1 1/1. 4 1/1. 4 -1 1/1. 4 1/1. 4 1/1. 4 1/1. 4 1/1. 4 1/1. 4 1/1. 4 -1 1. 1 1/1. 4 1/1. 2.

Source link: https://europepmc.org/article/MED/36435072


Accelerated anode and cathode reaction due to direct electron uptake and consumption by manganese dioxide and titanium dioxide composite cathode in degradation of iron composite.

Titan dioxide particles were mixed with titanium dioxide particles by mechanical ball milling, and after that the mixed powders were transformed into Fe and molded into an implant using selective laser melting, manganese dioxide particles were compounded with titanium dioxide particles. MnO 2 on the other hand, had a higher work function than Fe, which prompted electrons to migrate from Fe to MnO 2 in order to accelerate the anode reaction. Besides, anatase TiO 2 with high conductivity was mixed with MnO 2 to produce a composite cathode that helped electron transfer from the cathode to the electrolyte, boosting electron absorption and encouraging cathode reaction. Fe-MnO 2 -TiO 2 had a higher average electron transfer number than Fe-MnO 2, suggesting a faster electronic consumption reaction and higher cathode results.

Source link: https://europepmc.org/article/MED/36410298


Carbon Nanofibers-Sheathed Graphite Rod Anode and Hydrophobic Cathode for Improved Performance Industrial Wastewater-Driven Microbial Fuel Cells.

Carbon nanofiber-decorated graphite rods have been introduced as cost-effective and low-cost alternatives for industrial wastewater-driven microbial fuel cells. Carbon nanofiber deposition on the surface of the graphite rods could be achieved by electrospinning of polyacrylonitrile/N,N,N-Dimethylformamide solution, which was calcined under inert atmosphere. The experimental findings revealed that the graphite anode delivered a very good result at ten min electrospinning time relative to the commercial anodes. Typically, the produced power density from sugarcane industry wastewater-driven air cathode microbial fuel cells was 13. 3 mW/m2, 43, 43 u00b1 0. 3, carbon felt, carbon cloth, and graphite rod coated by 10-minute electrospinning time carbon nanofibers anodes was 13. 3 mW/m2 at a 10-min electrospinning time carbon nanofibers anodes was 0. 8, 43 0. 3, The unique result of the developed anode result came from the manufacturing of a 3D carbon nanofiber layer containing the biocatalyst.

Source link: https://europepmc.org/article/MED/36432248

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions