Results 11 to 20 of about 9,076 (227)
Influence of Impurities on the Electrochemical Upcycling of Biomass. [PDF]
ChemSusChem5‐hydroxymethyl furfural (HMF) and furfural contain impurity levels that lie below the detection limit of common analysis techniques. Yet, these impurity levels have an adverse effect on the electrochemical conversion of these compounds. In this study, we show that distillation of furfural and recrystallization of HMF facilitates their electrochemical ...
Sobota L, Bondue CJ, Tschulik K.
europepmc +2 more sources
Шахрайство у сучасному законодавстві деяких зарубіжних країн
Аналітично-порівняльне правознавство, 2023 Протягом останнього десятиліття у науці кримінального права виникла зацікавленість до порівняльно-правових досліджень. Суттєва зміна умов суспільного життя та прагнення дотримуватися принципів, прийнятих народами розвинутих країн, потребує вивчення ...
O. Humin
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Scientific Reports, 2021 Nitrogen fertiliser is manufactured using the industrial Haber–Bosch process, although it is extremely energy-consuming. One sustainable alternative technology is the electrochemical promotion of biological nitrogen fixation (BNF). This study reports the
Sujan Dey +6 more
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Spray Combustion Analysis of Humins [PDF]
SAE Technical Paper Series, 2017 <div class="section abstract"><div class="htmlview paragraph">Second generation biomass is an attractive renewable feedstock for transport fuels. Its sulfur content is generally negligible and the carbon cycle is reduced from millions to tens of years.
Feijen, J. +5 more
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Degradative studies on a soil humin fraction—Sequential degradation of inherited humin [PDF]
Soil Biology and Biochemistry, 1987 Peer ...
Almendros Martín, Gonzalo +1 more
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Ambient Temperature Self-Blowing Tannin-Humins Biofoams [PDF]
Polymers, 2020 Ambient temperature self-blowing tannin–furanic foams have been prepared by substituting a great part—even a majority—of furfuryl alcohol with humins, a polyfuranic material derived from the acid treatment at high temperature of fructose. Closed-cell foams were prepared at room temperature and curing, while interconnected-cell foams were prepared at 80
Xinyi Chen +6 more
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Towards a radiocarbon chronology of the Late-Glacial: Sample selection strategies [PDF]
, 2001 This paper outlines a dating program designed to test the reproducibility of radiocarbon dates on different materials of Late-Glacial age (plant macrofossils, fossil beetle remains, and the "humic" and "humin" chemical fractions of limnic sediments ...
Bengtsson +14 more
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Synthesis of Humin-Phenol-Formaldehyde Adhesive [PDF]
Polymers, 2017 Humins are low-value-added byproducts from the biomass acid hydrolysis process. In the present work, humins were first employed as a phenol replacement for synthesis of modified phenol-formaldehyde adhesives through a two-step process. In this process, humins were first utilized to obtain alkaline soluble products, mainly consisting of phenolics ...
Kang, Shimin +5 more
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CHARACTERIZATION OF BULK SOIL HUMIN AND ITS ALKALINE-SOLUBLE AND ALKALINE-INSOLUBLE FRACTIONS
Revista Brasileira de Ciência do Solo, 2015 Humic substances are the major components of soil organic matter. Among the three humic substance components (humic acid, fulvic acid, and humin), humin is the most insoluble in aqueous solution at any pH value and, in turn, the least understood.
Cuilan Li +4 more
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Variations in radiocarbon ages of various organic fractions in core sediments from Erhai Lake, SW China [PDF]
, 2003 Radiocarbon dating was performed for the extracted organic fractions (cellulose-rich and humic acid fractions of plant fragment; fulvic acid, humic acid and humin fractions of humus substance) and shell from core sediments of the Erhai Lake, SW China ...
Xu, S., Zheng, G.
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