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1. Melamine-based polymer networks enabled N, O, S Co-doped defect-rich hierarchically porous carbon nanobelts for stable and long-cycle Li-ion and Li-Se batteries

Author:
Dong, Wen-Da; Yu, Wen-Bei; Xia, Fan-Jie; Chen, Liang-Dan; Zhang, Yun-Jing; Tan, Hai-Ge; Wu, Liang; Hu, Zhi-Yi; Mohamed, Hemdan S.H.; Liu, Jing; Deng, Zhao; Li, Yu; Chen, Li-Hua; Su, Bao-Lian
Source:
Journal of colloid and interface science 2021 v.582 pp. 60-69
ISSN:
0021-9797
Subject:
selenium,   etc   ; anodes; carbon; cobalt; electrochemistry; electrons; energy; ions; lithium; lithium batteries; polymers; selenides;     Show all 12 Subjects
Abstract:
... Li-Se battery is a promising energy storage candidate owing to its high theoretical volumetric capacity and safe operating condition. In this work, for the first time, we report using the whole organic Melamine-based porous polymer networks (MPNs) as a precursor to synthesize a N, O, S co-doped hierarchically porous carbon nanobelts (HPCNBs) for both Li-ion and Li-Se battery. The N, O, S co-doping ...
DOI:
10.1016/j.jcis.2020.06.071

2. On the coupling of hydride generation (HG) with flowing liquid anode atmospheric pressure glow discharge (FLA-APGD) for determination of traces of As, Bi, Hg, Sb and Se by optical emission spectrometry (OES)

Author:
Gorska, Monika; Greda, Krzysztof; Pohl, Pawel
Source:
Talanta 2021 v.222 pp. 121510
ISSN:
0039-9140
Subject:
selenium,   etc   ; anodes; antimony; arsenic; atmospheric pressure; bismuth; cathodes; hydrides; hydrochloric acid; liquids; mercury; quantitative analysis; sodium borohydride; spectroscopy;     Show all 14 Subjects
Abstract:
... A novel atmospheric pressure glow discharge (APGD) microplasma system, sustained between a miniaturized flowing liquid anode (FLA) and a He jet nozzle cathode, was combined with a hydride generation (HG) technique to improve the determination performance of As, Bi, Hg, Sb, and Se with the aid of optical emission spectrometry (OES). The discharge current, the He flow rate, and the concentrations of ...
DOI:
10.1016/j.talanta.2020.121510

3. Toward a comprehensive study for multielemental quantitative LA-ICP MS bioimaging in soft tissues

Author:
Arnaudguilhem, Carine; Larroque, Marion; Sgarbura, Olivia; Michau, Dominique; Quenet, François; Carrère, Sébastien; Bouyssière, Brice; Mounicou, Sandra
Source:
Talanta 2021 v.222 pp. 121537
ISSN:
0039-9140
Subject:
selenium,   etc   ; bioimaging; cadmium; carbon; cobalt; copper; dextran; films (materials); humans; indium; ionization; iridium; kidneys; mineralization; molybdenum; nickel; oxygen; platinum; polymers; regression analysis; rhodium; toxicity; zinc;     Show all 23 Subjects
Abstract:
... Quantitative localization of metals in biological tissue sections is critical to obtain insight into metal toxicity mechanisms or their beneficial characteristics. This study presents the development of a quantitative LA-ICP MS bioimaging methodology based on the polymer film strategy and internal standardization. To maximize the number of elements mapped, an aqueous soluble polymer (dextran) was ...
DOI:
10.1016/j.talanta.2020.121537

4. Pressure leaching of selenium and tellurium from scrap copper anode slimes in sulfuric acid-oxygen media

Author:
Rao, Shuai; Liu, Yi; Wang, Dongxing; Cao, Hongyang; Zhu, Wei; Yang, Rui; Duan, Lijuan; Liu, Zhiqiang
Source:
Journal of cleaner production 2021 v.278 pp. 123989
ISSN:
0959-6526
Subject:
selenium,   etc   ; anodes; copper; energy-dispersive X-ray analysis; gold; leaching; oxidation; oxygen; oxygen partial pressure; pH; scanning electron microscopy; selenides; silver; sulfuric acid; tellurium; temperature; thermodynamics;     Show all 17 Subjects
Abstract:
... Copper anode slimes are essential secondary resources from which valuable metals, such as Cu, Se, Te, Au, and Ag, may be recovered. Herein, oxidation pressure leaching is proposed for the pretreatment of copper anode slimes to realize efficient extraction of Cu, Se, and Te and enrichment of Au and Ag in the leaching residue. Detailed investigations were conducted to determine the effects of sulfur ...
DOI:
10.1016/j.jclepro.2020.123989

5. SeO₂-Mediated Oxidative Transposition of Pauson–Khand Products

Author:
Dibrell, Sara E.; Maser, Michael R.; Reisman, Sarah E.
Source:
Journal of the American Chemical Society 2020 v.142 no.14 pp. 6483-6487
ISSN:
1520-5126
Subject:
selenium,   etc   ; cross-coupling reactions; oxidation;     Show all 3 Subjects
Abstract:
... Oxidative transpositions of bicyclic cyclopentenones mediated by selenium dioxide (SeO₂) are disclosed. Treatment of Pauson–Khand reaction (PKR) products with SeO₂ in the presence or absence of water furnishes di- and trioxidized cyclopentenones, respectively. Mechanistic investigations reveal multiple competing oxidation pathways that depend on substrate identity and water concentration. Function ...
DOI:
10.1021/jacs.9b13818

6. π-Extension, Selenium Incorporation, and Trimerization: “Three in One” for Efficient Perylene Diimide Oligomer-Based Organic Solar Cells

Author:
Wang, Keke; Xia, Ping; Wang, Kangwei; You, Xiaoxiao; Wu, Mingliang; Huang, Huaxi; Wu, Di; Xia, Jianlong
Source:
ACS applied materials & interfaces 2020 v.12 no.8 pp. 9528-9536
ISSN:
1944-8252
Subject:
selenium,   etc   ; blades; moieties; solar cells;     Show all 4 Subjects
Abstract:
... Perylene diimide (PDI) and the vinylene-bridged helical PDI oligomers are versatile building blocks for constructing nonfullerene acceptors (NFAs). In this contribution, a benzene-cored star-shaped NFA, namely, TPDI2-Se, was designed and synthesized for organic solar cells (OSCs). The NFA with smaller π-conjugated blades, namely, TPDI-Se, was synthesized for comparison. Using the commercially avai ...
DOI:
10.1021/acsami.9b21929

7. Simultaneous and highly sensitive determination of selenium and tellurium species in environmental samples by on-line ionic liquid based in-situ solvent formation microextraction with hydride generation atomic fluorescence spectrometry detection

Author:
Llaver, Mauricio; Chapana, Agostina L.; Wuilloud, Rodolfo G.
Source:
Talanta 2021 v.222 pp. 121460
ISSN:
0039-9140
Subject:
selenium,   etc   ; ammonium; atomic absorption spectrometry; cotton; detection limit; droplets; fluorescence; groundwater; hydrides; hydrophobicity; ion exchange; ionic liquids; liquids; methanol; microextraction; nitric acid; pH; river water; seawater; sediments; soil; spectrometers; tap water; tellurium;     Show all 24 Subjects
Abstract:
... A novel on-line preconcentration and speciation analysis method for the simultaneous determination of inorganic Se and Te species is presented in this work. The methodology is based on the on-line formation of a hydrophobic ionic liquid (IL) directly in the liquid sample stream of a flow injection system, thus achieving an efficient and rapid extraction of the analytes complexed with ammonium pyrr ...
DOI:
10.1016/j.talanta.2020.121460

8. Tricolor imaging of MMPs to investigate the promoting roles of inflammation on invasion and migration of tumor cells

Author:
Guo, Wenfei; Gao, Xiaonan; Zhan, Renhui; Zhao, Zengteng; Xu, Kehua; Tang, Bo
Source:
Talanta 2021 v.222 pp. 121525
ISSN:
0039-9140
Subject:
selenium,   etc   ; biomarkers; chemical bonding; confocal laser scanning microscopy; energy transfer; fluorescein; fluorescence; gelatinase A; gelatinase B; gold; image analysis; inflammation; isothiocyanates; lipopolysaccharides; matrilysin; migratory behavior; nanogold; neoplasm cells; peptides;     Show all 19 Subjects
Abstract:
... The expression levels of matrix metalloproteinases (MMPs) are closely related to the degree of inflammation which facilitates tumor cells' invasion and migration. A tricolor fluorescence nanoprobe based on high-fidelity gold-selenium (Au–Se) nanoplatform was designed and constructed for simultaneously imaging matrix metalloproteinase-2 (MMP-2), matrix metalloproteinase-7 (MMP-7) and matrix metallo ...
DOI:
10.1016/j.talanta.2020.121525

9. A prospective analysis of micronutrient status in quiescent inflammatory bowel disease

Author:
MacMaster, Morag Jane; Damianopoulou, Spyridoula; Thomson, Christina; Talwar, Dinesh; Stefanowicz, Fiona; Catchpole, Anthony; Gerasimidis, Konstantinos; Gaya, Daniel R.
Source:
Clinical nutrition 2021 v.40 no.1 pp. 327-331
ISSN:
0261-5614
Subject:
selenium,   etc   ; C-reactive protein; Crohn disease; adults; ascorbic acid; blood serum; copper; ferritin; folic acid; guidelines; magnesium; nutrient deficiencies; patients; pyridoxine; relapse; remission; serum albumin; ulcerative colitis; vitamin B12; vitamin D; zinc;     Show all 21 Subjects
Abstract:
... ESPEN guidelines advocate patients with inflammatory bowel disease (IBD) have their micronutrient levels checked regularly. This study described the micronutrient status of patients with quiescent IBD and explores whether biochemical micronutrient deficiencies related to time to subsequent disease relapse.Sixteen micronutrients were measured prospectively in blood of patients with IBD in clinical ...
DOI:
10.1016/j.clnu.2020.05.010

10. Enhancing the average thermoelectric figure of merit of elemental Te by suppressing grain boundary scattering

Author:
Wu, Yehao; Liu, Feng; Zhang, Qi; Zhu, Tiejun; Xia, Kaiyang; Zhao, Xinbing
Source:
Journal of materials chemistry A 2020 v.8 no.17 pp. 8455-8461
ISSN:
2050-7496
Subject:
selenium,   etc   ; alloys; ambient temperature; thermal conductivity;     Show all 4 Subjects
Abstract:
... P-type elemental Te has exhibited a high thermoelectric (TE) figure of merit zT of ∼1.0 around 600 K, but its performance near room temperature is much deteriorated due to grain boundary scattering. In this work, the average zT of Te₀.₉₈As₀.₀₂ alloys is remarkably enhanced via increasing the grain size. Through increasing the grain size, the room temperature power factor is boosted from 0.44 × 10⁻ ...
DOI:
10.1039/d0ta02660c

11. Selenium tolerance, accumulation, localization and speciation in a Cardamine hyperaccumulator and a non-hyperaccumulator

Author:
Both, Eszter Borbála; Stonehouse, Gavin C.; Lima, Leonardo Warzea; Fakra, Sirine C.; Aguirre, Bernadette; Wangeline, Ami L.; Xiang, Jiqian; Yin, Hongqing; Jókai, Zsuzsa; Soós, Áron; Dernovics, Mihály; Pilon-Smits, Elizabeth A.H.
Source:
The Science of the total environment 2020 v.703 pp. 135041
ISSN:
0048-9697
Subject:
selenium,   etc   ; Cardamine; hyperaccumulators; plant extracts; seedlings; selenates;     Show all 6 Subjects
Abstract:
... Cardamine violifolia (family Brassicaceae) is the first discovered selenium hyperaccumulator from the genus Cardamine with unique properties in terms of selenium accumulation, i.e., high abundance of selenolanthionine. In our study, a fully comprehensive experiment was conducted with the comparison of a non-hyperaccumulator Cardamine species, Cardamine pratensis, covering growth characteristics, c ...
DOI:
10.1016/j.scitotenv.2019.135041
PubMed:
31767332
PubMed Central:
PMC7060786

12. Fine-tuning the diradical character of molecular systems via the heteroatom effect

Author:
Wang, Wenxiang; Ge, Lingbing; Xue, Guodong; Miao, Fang; Chen, Pingan; Chen, Hanjiao; Lin, Yiwei; Ni, Yong; Xiong, Jingyuan; Hu, Yuanyuan; Wu, Jishan; Zheng, Yonghao
Source:
Chemical communications 2020 v.56 no.9 pp. 1405-1408
ISSN:
1364-548X
Subject:
selenium,   etc   ; chemical compounds; chemical reactions; energy; sulfur;     Show all 5 Subjects
Abstract:
... Heteroatoms were introduced as a novel modification strategy for fine-tuning the diradical character of molecular systems. Both the diradical character and the singlet–triplet energy gaps of diketopyrrolopyrrole based phenoxyl diradicaloids decreased as the size of the substituted heteroatoms (from O, S to Se atom) increased. ...
DOI:
10.1039/c9cc08538f

13. Preparation and activities of selenium polysaccharide from plant such as Grifola frondosa

Author:
Huang, Shiyu; Yang, Wenjian; Huang, Gangliang
Source:
Carbohydrate polymers 2020 v.242 pp. 116409
ISSN:
0144-8617
Subject:
selenium; selenium compounds,   etc   ; Grifola frondosa; chemical structure; humans; medicinal properties; polysaccharides;     Show all 7 Subjects
Abstract:
... Selenium polysaccharide is an organic selenium compound formed by the combination of polysaccharide and selenium. The biological activity of selenium polysaccharide from plant such as Grifola frondosa is generally higher than that of selenium and polysaccharide, and it is more easily absorbed and utilized by human body. Therefore, selenium polysaccharide has a wide range of applications in immune ...
DOI:
10.1016/j.carbpol.2020.116409

14. Characterization and Stability of Janus TiXY (X/Y = S, Se, and Te) Monolayers

Author:
Mogulkoc, A.; Mogulkoc, Y.; Jahangirov, S.; Durgun, E.
Source:
Journal of physical chemistry 2019 v.123 no.49 pp. 29922-29931
ISSN:
1932-7455
Subject:
selenium,   etc   ; sulfur; tellurium;     Show all 3 Subjects
Abstract:
... The realization of Janus MoSSe monolayers has brought two-dimensional (2D), ternary transition metal dichalcogenides (TMDs) into focus. The addition of a third element can lead to superior properties, hence extensive analyses on the characterization of these sophisticated systems are required to reveal their full potential. In this study, we examine the structural, mechanical, electronic, thermal, ...
DOI:
10.1021/acs.jpcc.9b06925

15. Preparation and structure of polysaccharide selenide

Author:
Yang, Wenjian; Huang, Gangliang; Huang, Hualiang
Source:
Industrial crops and products 2020 v.154 pp. 112630
ISSN:
0926-6690
Subject:
selenium,   etc   ; drug development; health services; immunity; polysaccharides; selenides;     Show all 6 Subjects
Abstract:
... The organic integration of selenium and polysaccharide, which produces selenium polysaccharide, has become the hot spot of research. Because selenium polysaccharide has the physiological activities such as anti-tumor, anti-virus and improving immunity. Herein, the preparation and structure of polysaccharide selenide were investigated and discussed. It showed great application prospect in health ca ...
DOI:
10.1016/j.indcrop.2020.112630

16. Facile and scalable synthesis of a sulfur, selenium and nitrogen co-doped hard carbon anode for high performance Na- and K-ion batteries

Author:
Liu, Yu; Dai, Haodong; An, Yongkang; Fu, Lijun; An, Qinyou; Wu, Yuping
Source:
Journal of materials chemistry A 2020 v.8 no.30 pp. 14993-15001
ISSN:
2050-7496
Subject:
selenium,   etc   ; anodes; batteries; carbon; nitrogen; potassium; sodium; sulfur;     Show all 8 Subjects
Abstract:
... Hard carbon is the most attractive anode material for sodium/potassium-ion storage, because of its extensive resources, low cost, and environmental benignity. However, it is a great challenge to design carbon-based anodes with a high capacity and long lifespan. Herein, sulfur, selenium and nitrogen co-doped hard carbon was prepared via a facile and scalable solid reaction and used as the anode mat ...
DOI:
10.1039/d0ta04513f

17. Influence of Ch substitution on structural, electronic, and thermoelectric properties of layered oxychalcogenides (La₀.₅Bi₀.₅O)CuCh (Ch = S, Se, Te): a new insight from first principles

Author:
Muhammady, Shibghatullah; Widita, Rena; Darma, Yudi
Source:
RSC advances 2020 v.10 no.46 pp. 27481-27491
ISSN:
2046-2069
Subject:
selenium,   etc   ; copper; electrical conductivity; energy; sulfur; tellurium; thermoelectricity;     Show all 7 Subjects
Abstract:
... We study the structural, electronic, and thermoelectric properties of p-type layered oxychalcogenides (La₀.₅Bi₀.₅O)CuCh (Ch = S, Se, Te) from first principles. Ch substitution from S to Te enhances the local-symmetry distortions (LSDs) in CuCh₄ and OLa₂Bi₂ tetrahedra, where the LSD in OLa₂Bi₂ is more pronounced. The LSD in CuCh₄ tetrahedra comes from the possible pseudo-Jahn–Teller effect, indicat ...
DOI:
10.1039/d0ra05187j

18. Reducing Effective Mass for Advancing Thermoelectrics in Sb/Bi-Doped AgCrSe₂ Compounds

Author:
Tang, Mingjing; Chen, Zhiyu; Guo, Xuming; Zhang, Fujie; Zhong, Yan; Liu, Hangtian; Kang, Bin; Ang, Ran
Source:
ACS applied materials & interfaces 2020 v.12 no.32 pp. 36347-36354
ISSN:
1944-8252
Subject:
selenium,   etc   ; antimony; bismuth; chromium; models; selenides; silver; thermal conductivity;     Show all 8 Subjects
Abstract:
... Liquid-like materials have attracted increasing attention, owing to their phonon–liquid electron–crystal feature. As a typical representative, the superionic conductor AgCrSe₂ is regarded as a promising thermoelectric for its intrinsic ultralow lattice thermal conductivity. The primary challenge for achieving high thermoelectric performance is to enhance the inferior electronic performance in AgCr ...
DOI:
10.1021/acsami.0c09355

19. KAgX (X = S, Se): High-Performance Layered Thermoelectric Materials for Medium-Temperature Applications

Author:
Zhu, Xue-Liang; Yang, Hengyu; Zhou, Wu-Xing; Wang, Baotian; Xu, Ning; Xie, Guofeng
Source:
ACS applied materials & interfaces 2020 v.12 no.32 pp. 36102-36109
ISSN:
1944-8252
Subject:
selenium,   etc   ; density functional theory; equations; heat transfer; sulfur; thermal conductivity;     Show all 6 Subjects
Abstract:
... Monolayer KAgX are a class of novel two-dimensional (2D) layered materials with efficient optical absorption and superior carrier mobility, signifying their potential application prospect in photovoltaic (PV) and thermoelectric (TE) fields. Motivated by the recent theoretical studies on the KAgX monolayer, we carried out systematic investigations on the TE performance of KAgS and KAgSe monolayers, ...
DOI:
10.1021/acsami.0c08843

20. Ultralow thermal conductivity and high thermoelectric figure of merit in mixed valence In₅X₅Br (X = S, and Se) compounds

Author:
Pandey, Tribhuwan; Nissimagoudar, Arun S.; Mishra, Avanish; Singh, Abhishek K.
Source:
Journal of materials chemistry A 2020 v.8 no.27 pp. 13812-13819
ISSN:
2050-7496
Subject:
selenium,   etc   ; ambient temperature; electrical conductivity; indium; oxidation; sulfur; thermal conductivity;     Show all 7 Subjects
Abstract:
... Discovering a material with a combination of high electrical conductivity, high thermopower, and low lattice thermal conductivity is crucial for designing efficient thermoelectric materials. Here, we show that a perfect balance of these properties can be realized in In₅X₅Br (X = S and Se) compounds, where indium simultaneously exists in three different oxidation states (In¹⁺, In²⁺ and In³⁺). The p ...
DOI:
10.1039/d0ta03841e