Subject:
All Disciplines Arts & Humanities Biology & Life Sciences Business & Economics Chemistry & Materials Science Computer Science & Mathematics Engineering Environmental & Earth Sciences Medicine & Pharmacology Physical Sciences Public Health & Healthcare Social Sciences
Sort:
Hottest Latest Alphabetical (A-Z) Alphabetical (Z-A)
Type:
All Topic Review Biography
Topic Review
Advanced Nanostructured Materials for Electrocatalysis in Lithium–Sulfur Batteries
Lithium–sulfur (Li-S) batteries are considered as among the most promising electrochemical energy storage devices due to their high theoretical energy density and low cost. However, the inherently complex electrochemical mechanism in Li-S batteries leads to problems such as slow internal reaction kinetics and a severe shuttle effect, which seriously affect the practical application of batteries. 
  • 373
  • 20 Feb 2023
Topic Review
Advancements in Electrospun Anode Materials
Electronic devices commonly use rechargeable Li-ion batteries due to their potency, manufacturing effectiveness, and affordability. Electrospinning technology offers nanofibers with improved mechanical strength, quick ion transport, and ease of production, which makes it an attractive alternative to traditional methods. The electrospinning technique can be used to generate nanofibers for battery separators, the electrodes with the advent of flame-resistant core-shell nanofibers.  The anode is the negative electrode of the electrochemical cell. There are three mechanisms of energy storage for the anode.
  • 298
  • 04 Apr 2023
Topic Review
Advances in Electrochemical Glucose Sensing
The detection of glucose is crucial in the management of diabetes and other medical conditions but also crucial in a wide range of industries such as food and beverages. The development of glucose sensors in the past century has allowed diabetic patients to effectively manage their disease and has saved lives. First-generation glucose sensors have considerable limitations in sensitivity and selectivity which has spurred the development of more advanced approaches for both the medical and industrial sectors.
  • 2.2K
  • 21 Jul 2021
Topic Review
Analysis of Phenolic Compounds by Coulometric Array Detector
Phenolic compounds are an important group of organic molecules with high radical scavenging, antimicrobial, anti-inflammatory, and antioxidant properties. The emerging interest in phenolic compounds in food products has led to the development of various analytical techniques for their detection and characterization. Among them, the coulometric array detector is a sensitive, selective, and precise method for the analysis of polyphenols. 
  • 379
  • 07 Nov 2022
Topic Review
Antioxidants and Carbon-Based Electrodes
Antioxidants are compounds that prevent or delay the oxidation process, acting at a much smaller concentration, in comparison to that of the preserved substrate. Primary antioxidants act as scavenging or chain breaking antioxidants, delaying initiation or interrupting propagation step. Secondary antioxidants quench singlet oxygen, decompose peroxides in non-radical species, chelate prooxidative metal ions, inhibit oxidative enzymes. Based on antioxidants’ reactivity, four lines of defense have been described: Preventative antioxidants, radical scavengers, repair antioxidants, and antioxidants relying on adaptation mechanisms. Carbon-based electrodes are largely employed in electroanalysis given their special features, that encompass large surface area, high electroconductivity, chemical stability, nanostructuring possibilities, facility of manufacturing at low cost, and easiness of surface modification. Largely employed methods encompass voltammetry, amperometry, biamperometry and potentiometry. Determination of key endogenous and exogenous individual antioxidants, as well as of antioxidant activity and its main contributors relied on unmodified or modified carbon electrodes, whose analytical parameters are detailed. Recent advances based on modifications with carbon-nanotubes or the use of hybrid nanocomposite materials are described. Large effective surface area, increased mass transport, electrocatalytical effects, improved sensitivity, and low detection limits in the nanomolar range were reported, with applications validated in complex media such as foodstuffs and biological samples.
  • 780
  • 12 Apr 2021
Topic Review
Application of 2D MoS2-Based Nanocomposites
The 2D molybdenum disulfide (MoS2) nanosheets have unique and complementary properties to those of graphene, rendering them ideal electrode materials that could potentially lead to significant benefits in many electrochemical applications. These properties include tunable bandgaps, large surface areas, relatively high electron mobilities, and good optical and catalytic characteristics.
  • 456
  • 24 Jun 2022
Topic Review
Application of Biomass Materials in Zinc−Ion Batteries
Aqueous zinc-ion batteries (ZIBs), with large reserves of zinc metal and maturity of production, are a promising alternative to sustainable energy storage. Nevertheless, ZIBs also have many drawbacks, for instance, aqueous solution has poor frost resistance and is prone to side reactions. In addition, zinc dendrites also limit the performance of ZIBs. The deeper development and modification of ZIBs is crucial. Biomass, a green and sustainable resource with complex molecular structure and abundant functional groups, makes it have great application in ZIBs.
  • 261
  • 20 Apr 2023
Topic Review
Application of Carbon Materials for Lithium Metal Batteries
The use of fossil fuels has made invaluable contributions to the development of human society. However, problems such as resource depletion and environmental pollution force human beings to develop new energy systems and adjust the energy structure. New systems such as wind, hydro, solar, and fuel cells are expected to provide clean and sustainable energy for human society. As an effective way to store and transfer energy, electrochemical energy storage has gradually become an indispensable part of the transformation of energy structure. Since the advent of lithium-ion batteries in the 19th century, they have become an irreplaceable energy storage device in various fields.
  • 412
  • 12 Dec 2022
Topic Review
Application of Electrochemical Food Monitoring for Food Additives
Lectrochemical sensors (ECSs) is a powerful method with great sensitivity and reliability for food evaluation. Metal-organic frameworks (MOFs) with surprisingly porous morphology provide uniform yet tunable features, a high specific surface, and established practical applications in various fields. MOF-based ECSs present novel routes for the fast and effective detection of food contaminants or nutrients. 
  • 177
  • 04 Jul 2023
Topic Review
Application of Mixed Potential Theory to Leaching
Leaching is a central unit operation in the hydrometallurgical processing of minerals, which often occurs by means of electrochemical reactions. Application of mixed potential theory to explain the kinetics of oxidative and reductive leaching processes is a useful concept in explaining observed results. Native metals, selected oxides, and most base metal sulfides are electron-conducting phases. For these minerals, leaching may take place by normal corrosion, passivation or galvanic couple mechanisms, which provide individual electrode kinetics enabling the calculation of mixed potentials and overall reaction kinetics. 
  • 593
  • 08 Jul 2022
  • Page
  • of
  • 17
Featured Entry Collections
>>

Featured Books

>>
Encyclopedia of Social Sciences
Encyclopedia of COVID-19
Encyclopedia of Fungi
Encyclopedia of Digital Society, Industry 5.0 and Smart City
Feedback