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1. Polyphenylsilsesquioxanes. New structures–new properties

Author:
Temnikov, Maxim N.; Muzafarov, Aziz M.
Source:
RSC advances 2020 v.10 no.70 pp. 43129-43152
ISSN:
2046-2069
Subject:
physicochemical properties,   etc   ; methodology; synthesis;     Show all 3 Subjects
Abstract:
... The review describes the synthesis and properties of various forms of polyphenylsilsesquioxane (PPSQ). Among the forms described, we present the well-known ladder (l-PPSQ) and polyhedral (p-PPSQ) forms, from the first studies to the latest achievements. The practical prospects of these compounds and the possibility of their modification are estimated. These PPSQ have a regular polycyclic structure ...
DOI:
10.1039/d0ra07854a

2. Equilibrium and kinetically trapped aggregates in polyelectrolyte–oppositely charged surfactant mixtures

Author:
Guzmán, Eduardo; Fernández-Peña, Laura; Ortega, Francisco; Rubio, Ramón G.
Source:
Current opinion in colloid & interface science 2020 v.48 pp. 91-108
ISSN:
1359-0294
Subject:
physicochemical properties,   etc   ; electrolytes; surfactants;     Show all 3 Subjects
Abstract:
... The widespread of mixtures formed by polyelectrolytes and oppositely charged surfactants in different industrial sectors requires a thorough understanding of the physicochemical bases governing their interactions. These interactions lead to the formation of polyelectrolyte–surfactant aggregates, with the presence of such aggregates in the aqueous mixtures impacting decisively on their bulk and int ...
DOI:
10.1016/j.cocis.2020.04.002

3. Speciation of nickel and its toxicity to Chlorella sp. in the presence of three distinct dissolved organic matter (DOM)

Author:
Macoustra, Gabriella K.; Jolley, Dianne F.; Stauber, Jenny L.; Koppel, Darren J.; Holland, Aleicia
Source:
Chemosphere 2021 v.273 pp. 128454
ISSN:
0045-6535
Subject:
physicochemical properties,   etc   ; Chlorella; chronic toxicity; dissolved organic matter; nickel;     Show all 5 Subjects
Abstract:
... Nickel is often a metal of interest in regulatory settings given its increasing prevalence in disturbed freshwaters and as a known toxicant to fish and algae. Dissolved organic matter (DOM) is a toxicity modifying factor for nickel and a ubiquitous water physicochemical parameter. This study investigated the effect of DOM concentration and source on the chronic toxicity of nickel to Chlorella sp. ...
DOI:
10.1016/j.chemosphere.2020.128454

4. Catalytic role of metals supported on SBA-16 in hydrodeoxygenation of chemical compounds derived from biomass processing

Author:
Szczyglewska, Paulina; Feliczak-Guzik, Agnieszka; Jaroniec, Mietek; Nowak, Izabela
Source:
RSC advances 2021 v.11 no.16 pp. 9505-9517
ISSN:
2046-2069
Subject:
physicochemical properties,   etc   ; biofuels; biomass; energy; guaiacol; hydrogen; porous media; silica;     Show all 8 Subjects
Abstract:
... Hydrodeoxygenation (HDO) carried out at high temperatures and high hydrogen pressures is one of the alternative methods of upgrading pyrolytic oils from biomass, leading to high quality biofuels. To save energy, it is important to carry out catalytic processes under the mildest possible experimental conditions. The aim of our research was the synthesis of ordered mesoporous SBA-16 type silica mate ...
DOI:
10.1039/d0ra06696f

5. Perovskite-type CaMnO3 anode material for highly efficient and stable lithium ion storage

Author:
Chang, Limin; Li, Jiahui; Le, Zaiyuan; Nie, Ping; Guo, Yu; Wang, Hairui; Xu, Tianhao; Xue, Xiangxin
Source:
Journal of colloid and interface science 2021 v.584 pp. 698-705
ISSN:
0021-9797
Subject:
physicochemical properties,   etc   ; ambient temperature; anodes; electrochemistry; energy; lithium; lithium batteries;     Show all 7 Subjects
Abstract:
... Lithium ion batteries are attracting ever increasing attention due to their advantages of high energy/ power density, environmental friendly, lifetime and low cost. As a star in the field of materials and energy, perovskites have received extensive attention due to their attracting physical and chemical properties. Herein, CaMnO₃, one material from the perovskite family is introduced as a novel an ...
DOI:
10.1016/j.jcis.2020.04.014

6. p–p orbital interaction via magnesium isovalent doping enhances optoelectronic properties of halide perovskites

Author:
Qian, Feng; Gong, Jue; Hu, Mingyu; Ge, Chunyu; Padture, Nitin P.; Zhou, Yuanyuan; Feng, Jing
Source:
Chemical communications 2020 v.56 no.100 pp. 15639-15642
ISSN:
1364-548X
Subject:
physicochemical properties,   etc   ; chlorides; lead; magnesium;     Show all 4 Subjects
Abstract:
... p–p orbital interaction through Mg(ii) isovalent doping in methylammonium lead chloride perovskite significantly enhances the electronic properties while not affecting the optical bandgap. This chemical behaviour shows promising applications to optoelectronic devices. ...
DOI:
10.1039/d0cc02150d

7. A comprehensive review on chemical properties and applications of biopolymers and their composites

Author:
George, Ashish; Sanjay, M.R.; Srisuk, Rapeeporn; Parameswaranpillai, Jyotishkumar; Siengchin, Suchart
Source:
International journal of biological macromolecules 2020 v.154 pp. 329-338
ISSN:
0141-8130
Subject:
physicochemical properties,   etc   ; biopolymers; canopy; petroleum;     Show all 4 Subjects
Abstract:
... In a world that canopies numerous opportunities to advance towards a green sustainable life, biopolymer development offers a platform that fits into the paradigm of achieving an eco-friendly environment whilst reducing reliance on the scarce fossil fuel elements for the fabrication of day-to-day products. Today's technological improvements have aided biopolymer end-products to escalate to higher p ...
DOI:
10.1016/j.ijbiomac.2020.03.120

8. Progress in the functional modification of graphene/graphene oxide: a review

Author:
Yu, Wang; Sisi, Li; Haiyan, Yang; Jie, Luo
Source:
RSC advances 2020 v.10 no.26 pp. 15328-15345
ISSN:
2046-2069
Subject:
physicochemical properties,   etc   ; graphene; graphene oxide;     Show all 3 Subjects
Abstract:
... Graphene and graphene oxide have attracted tremendous interest over the past decade due to their unique and excellent electronic, optical, mechanical, and chemical properties. This review focuses on the functional modification of graphene and graphene oxide. First, the basic structure, preparation methods and properties of graphene and graphene oxide are briefly described. Subsequently, the method ...
DOI:
10.1039/d0ra01068e

9. Correctly Assessing Defect Tolerance in Halide Perovskites

Author:
Zhang, Xie; Turiansky, Mark E.; Van de Walle, Chris G.
Source:
Journal of physical chemistry 2020 v.124 no.11 pp. 6022-6027
ISSN:
1932-7455
Subject:
physicochemical properties,   etc   ; crystal structure; halides;     Show all 3 Subjects
Abstract:
... The notion of “defect tolerance” has often been invoked to explain the excellent performance of halide perovskites in optoelectronic applications. However, this concept has not been rigorously defined or assessed. A common interpretation is that all of the energetically favorable intrinsic defects are shallow. On the basis of examples in the prototypical halide perovskite CsPbI₃, we show that this ...
DOI:
10.1021/acs.jpcc.0c01324

10. Effect of structural factors on the physicochemical properties of functionalized polyanilines

Author:
Andriianova, Anastasiia N.; Biglova, Yuliya N.; Mustafin, Akhat G.
Source:
RSC advances 2020 v.10 no.13 pp. 7468-7491
ISSN:
2046-2069
Subject:
physicochemical properties,   etc   ; aromatic compounds; polyaniline;     Show all 3 Subjects
Abstract:
... This review discusses the physical and physicochemical properties of polyaniline (PANI) derivatives. The most important methods for the preparation of functionalized polyanilines are presented. The presence of various substituents in its structure changes the polymer characteristics significantly due to steric and electronic effects of the functional groups. This review describes the relationship ...
DOI:
10.1039/c9ra08644g

11. HKUST-1-derived highly ordered Cu nanosheets with enriched edge sites, stepped (211) surfaces and (200) facets for effective electrochemical CO2 reduction

Author:
Wang, Da; Xu, Jinli; Zhu, Ying; Wen, Lingsha; Ye, Jiexu; Shen, Yi; Zeng, Tao; Lu, Xiaohui; Ma, Jun; Wang, Lizhang; Song, Shuang
Source:
Chemosphere 2021 v.278 pp. 130408
ISSN:
0045-6535
Subject:
physicochemical properties,   etc   ; adsorption; carbon dioxide; coordination polymers; electrochemistry; electrodes; foil; hydrogen; nanosheets; surface area;     Show all 10 Subjects
Abstract:
... A novel electrode composed of Cu nanosheets constructed from nanoparticles was synthesized by in situ electrochemical derivation from the metal-organic framework (MOF) HKUST-1. The prepared derivative electrode (HE-Cu) exhibited higher Faradaic efficiency (FE, 56.0%) of electrochemical CO₂ reduction (CO₂R) compared with that of pristine Cu foil (p-Cu, 32.3%) at an overpotential of −1.03 V vs. a re ...
DOI:
10.1016/j.chemosphere.2021.130408

12. Metal-organic frameworks functionalized smart textiles for adsorptive removal of hazardous aromatic pollutants from ambient air

Author:
Jhinjer, Hardeep Singh; Singh, Arunima; Bhattacharya, Saswata; Jassal, Manjeet; Agrawal, Ashwini K.
Source:
Journal of hazardous materials 2021 v.411 pp. 125056
ISSN:
0304-3894
Subject:
physicochemical properties,   etc   ; adsorption; air; aniline; benzene; clothing; cotton; cotton fabric; human health; nanocrystals; styrene; surface area;     Show all 12 Subjects
Abstract:
... Organic pollutants, with their increasing concentrations in the ambient air, are posing a severe threat to human health. Metal-organic frameworks (MOFs), due to their active functionalities and porous nature, have emerged as potential materials for the capture of organic pollutants and cleaning of the environment/air. In this work, the functionalization of cotton fabric is reported by the in-situ ...
DOI:
10.1016/j.jhazmat.2021.125056

13. Potato biodiversity: A linear discriminant analysis on the nutritional and physicochemical composition of fifty genotypes

Author:
Sampaio, Shirley L.; Barreira, João C.M.; Fernandes, Ângela; Petropoulos, Spyridon A.; Alexopoulos, Alexios; Santos-Buelga, Celestino; Ferreira, Isabel C.F.R.; Barros, Lillian
Source:
Food chemistry 2021 v.345 pp. 128853
ISSN:
0308-8146
Subject:
physicochemical properties,   etc   ; biodiversity; color; discriminant analysis; food chemistry; landraces; potatoes; provenance; supply; Andes region;     Show all 10 Subjects
Abstract:
... Fifty potato genotypes from twenty-four different countries of origin, four different flesh colours (yellow, purple, red and marble) and different cultivation types (Andean accessions, landraces, breeder lines and cultivated varieties) were studied in terms of their nutritional and physicochemical characteristics. In general, cultivated varieties and breeder lines showed the highest similarity (sl ...
DOI:
10.1016/j.foodchem.2020.128853

14. Physicochemical characterization of green sodium oleate-based formulations. Part 1. Structure and rheology

Author:
Tatini, Duccio; Raudino, Martina; Ambrosi, Moira; Carretti, Emiliano; Davidovich, Irina; Talmon, Yeshayahu; Ninham, Barry W.; Lo Nostro, Pierandrea
Source:
Journal of colloid and interface science 2021 v.590 pp. 238-248
ISSN:
0021-9797
Subject:
physicochemical properties,   etc   ; micelles; oleic acid; potassium; potassium chloride; rheology; sodium; solutes; surfactants; viscoelasticity;     Show all 10 Subjects
Abstract:
... The structure, rheology and other physicochemical properties of dilute aqueous dispersions of sodium oleate (NaOL) are well known. This paper is the first report in which a moderately concentrated (13% w/w) dispersion of NaOL in water is investigated. In fact, at this concentration the phase and rheology behavior of the surfactant remarkably deviates from those of its dilute solutions in water and ...
DOI:
10.1016/j.jcis.2021.01.040

15. Extraction, physicochemical characterization, and morphological properties of chitin and chitosan from cuticles of edible insects

Author:
Jantzen da Silva Lucas, Andressa; Quadro Oreste, Eliézer; Leão Gouveia Costa, Helena; Martín López, Héctor; Dias Medeiros Saad, Carolina; Prentice, Carlos
Source:
Food chemistry 2021 v.343 pp. 128550
ISSN:
0308-8146
Subject:
physicochemical properties,   etc   ; Tenebrio molitor; chitin; chitosan; edible insects; extraction; food chemistry;     Show all 7 Subjects
Abstract:
... As an alternative, cuticles from edible insects was proposed as an unconventional but viable source of chitin and chitosan. The chitin present in the mealworm’s (Tenebrio molitor) cuticles was obtained biotechnologically in one step of enzymatic deproteinization and after deacetylated. Differences in the physicochemical characteristics and the properties of the cuticles, chitin, and chitosan were ...
DOI:
10.1016/j.foodchem.2020.128550

16. Preparation of environmental samples for chemical speciation of metal/metalloids: A review of extraction techniques

Author:
Viana, José Lucas Martins; Menegário, Amauri Antônio; Fostier, Anne Hélène
Source:
Talanta 2021 v.226 pp. 122119
ISSN:
0039-9140
Subject:
physicochemical properties,   etc   ; chemical speciation; environmental science; extraction; ligands; metalloids; oxidation; sampling; sediments; soil; toxicity; water;     Show all 12 Subjects
Abstract:
... Chemical speciation is a relevant topic in environmental chemistry since the (eco)toxicity, bio (geo)chemical cycles, and mobility of a given element depend on its chemical forms (oxidation state, organic ligands, etc.). Maintaining the chemical stability of the species and avoiding equilibrium disruptions during the sample treatment is one of the biggest challenges in chemical speciation, especia ...
DOI:
10.1016/j.talanta.2021.122119

17. Chemical characterization of tequila maturation process and their connection with the physicochemical properties of the cask

Author:
Warren-Vega, Walter M.; Fonseca-Aguiñaga, Rocío; González-Gutiérrez, Linda V.; Carrasco-Marín, Francisco; Zárate-Guzmán, Ana I.; Romero-Cano, Luis A.
Source:
Journal of food composition and analysis 2021 v.98 pp. 103804
ISSN:
0889-1575
Subject:
physicochemical properties,   etc   ; beverages; flavonoids; food composition; mass transfer; polyphenols; porous media; product quality; wood;     Show all 9 Subjects
Abstract:
... The effect of time in the maturation process of Tequila employing two types of casks was studied: A new (labeled as Cask-New) and a medium-toasted cask (15 min at 200 °C) (labeled as Cask-MT). For that purpose, the wood used in the casks was characterized physicochemically, and its properties were contrasted with the physicochemical characterization of the beverage throughout the maturation time. ...
DOI:
10.1016/j.jfca.2021.103804

18. Preparation and characterization of the encapsulated myrtle extract nanoliposome and nanoniosome without using cholesterol and toxic organic solvents: A comparative study

Author:
Gorjian, Hayedeh; Raftani Amiri, Zeynab; Mohammadzadeh Milani, Jafar; Ghaffari Khaligh, Nader
Source:
Food chemistry 2021 v.342 pp. 128342
ISSN:
0308-8146
Subject:
physicochemical properties,   etc   ; Myrtus communis; cholesterol; comparative study; encapsulation; food chemistry; lecithins; shape; storage time; toxicity;     Show all 10 Subjects
Abstract:
... Nanoliposome and nanoniosome formulations containing myrtle extract were prepared without using cholesterol and toxic organic solvents for the first time. The formulations had different concentrations of lecithin (5, 7, and 9% w/w) and Hydrophilic-Lipophilic Balance (HLB) values (6.76, 8.40, and 9.59). The physicochemical characterization results showed a nearly spherical shape for the prepared na ...
DOI:
10.1016/j.foodchem.2020.128342

19. Physicochemical characterization of sous vide cooked squid (Loligo forbesii and Loligo vulgaris) and the relationship to selected sensory properties and hedonic response

Author:
Schmidt, Charlotte Vinther; Plankensteiner, Lorenz; Faxholm, Peter Lionet; Olsen, Karsten; Mouritsen, Ole G.; Frøst, Michael Bom
Source:
International journal of gastronomy and food science 2021 v.23 pp. 100298
ISSN:
1878-450X
Subject:
physicochemical properties,   etc   ; Loligo; gastronomy; gender; hardness; hedonic scales; juiciness; markets; meat; squid; taste; temperature; texture; Scandinavia;     Show all 14 Subjects
Abstract:
... The present study aims at promoting the use of squid in Scandinavia, a currently unexploited, and possible sustainable source of protein, available in the local waters. By a gastrophysical approach, the effects of sous vide cooking time and temperature on the mantle of squid (Loligo forbesii and Loligo vulgaris) were quantitatively assessed to obtain good eating quality, evaluated by Danish consum ...
DOI:
10.1016/j.ijgfs.2020.100298

20. Sustainable recovery of ultrafine TiC powders from molten Ti-bearing slag under super-gravity field

Author:
Du, Yu; Gao, Jintao; Lan, Xi; Guo, Zhancheng
Source:
Journal of cleaner production 2021 v.289 pp. 125785
ISSN:
0959-6526
Subject:
physicochemical properties,   etc   ; behavior; methodology; particle size; particles; powders; purity; separation; slags;     Show all 9 Subjects
Abstract:
... Ultrafine TiC powders possess excellent physicochemical properties, which are mainly synthesized by using high-purity ultrafine Ti or TiO₂ powders. In this study, a sustainable method for recovery of ultrafine TiC powders from molten Ti-bearing slag under super-gravity field was proposed. Firstly, the solid-liquid coexistence condition for single TiC powders in molten Ti-bearing slag was acquired. ...
DOI:
10.1016/j.jclepro.2021.125785