Results 81 to 90 of about 908,136 (295)
Почвознание, агрохимия и екология, 2011 Different methods of coal separation and beneficiation create conditions for increasing the content of extractable humic acids from coal. Usage of electromagnetic separation leads to reduction of total sulfur content below 1%.
Константин Митов +4 more
doaj
Carbon and Hydrogen, EarlyView.Carbon‐based electrodes, including graphite, graphene, and CNT composites, are promising candidates for sodium‐ion batteries due to their stability, conductivity, and abundance. Their electrochemical performance, key limitations, and strategies for improving practical SIB applications are highlighted.
Talha Munir +3 more
wiley +1 more source
Carbon Energy, EarlyView.The present review discusses the advancement in the catalytic synthesis of 5‐alkoxymethylfurfural (AMF) and levulinate esters (LEs) from the aspects of catalytic systems, reaction mechanisms, product isolation, and techno‐economic analysis, supplying valuable insights toward future sustainable and efficient manufacture of AMF and LEs. ABSTRACT The huge
Jun Zhang +6 more
wiley +1 more source
Humic acids characterization by EDXS and 13C NMR spectroscopy
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2010 Determination of humic acids spectral characteristics performed fast and convenient method for their quality evaluation. Humic acids (HA) were isolated from five different soil types (Luvi-haplic Chernozem, Haplic Luvisol, Haplic Cambisol, Leptic ...
Ľubica Pospíšilová +3 more
doaj +1 more source
Carbon Energy, EarlyView.Replacing the oxygen evolution reaction with the electro‐oxidation of pollutants and waste streams offers an energy‐efficient route for simultaneous hydrogen production and pollutant remediation. This review summarizes the reaction mechanisms, catalyst design principles, and emerging paired‐electrolysis strategies that govern activity, selectivity ...
Safa Al‐Yahyaey +4 more
wiley +1 more source
Semina: Ciências Agrárias, 2019 Corn cultivation continually demands new technologies, since average yields can still be increased. This study aimed to evaluate the response of high-yield corn to humic acids, isolated from organic manure compost, with or without the application of lime
Marihus Altoé Baldotto +2 more
doaj +1 more source
Extraction of humic acid by coacervate: Investigation of direct and back processes [PDF]
, 2012 The two aqueous phases extraction process is widely used in environmental clean up of industrial effluents and fine chemical products for their reuse.
Kameche, Mohamed +5 more
core +1 more source
Critical mineral removal from mining‐impacted waters using microalgal biomass
The Canadian Journal of Chemical Engineering, EarlyView.Abstract Rising demand for critical minerals has led to increased mining and mineral processing activities, resulting in the release of metal‐contaminated waters requiring treatment. Conventional treatment methods, such as lime neutralization, effectively precipitate metals; however, they are less effective at low metal concentrations and produce large
Sean Nickson +2 more
wiley +1 more source
Use of biologically active substances in hops
Plant, Soil and Environment, 2018 In four-year experiments, hop was treated with 7 biologically active substances in two terms during vegetation: Lignohumate max (a mixture of humic acids and fulvic acids), Lexin (a mixture of humic acids and fulvic acids enriched with auxins), Lexenzym (
Pavel PROCHÁZKA +4 more
doaj +1 more source
Recovery and Repurposing of End‐of‐Life Graphitic Anodes for Green Lithium‐Ion Batteries
EcoEnergy, EarlyView.This review summarizes the degradation mechanisms of spent graphite anodes in lithium‐ion batteries and highlights key recycling, regeneration, and modification strategies, including hydrometallurgical and pyrometallurgical approaches. It also discusses recent advances in surface engineering, structural regulation, and material hybridization, offering ...
Wei Wei, Weiguo Liu, Jiangqi Zhou
wiley +1 more source