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1. A facile strategy for high performance recyclable polymer systems via dynamic metal ion crosslinking

Author:
Wang, Yanjun; Liu, Zhimeng; Zhou, Changlin; Yuan, Ye; Jiang, Liang; Wu, Bo; Lei, Jingxin
Source:
Journal of materials chemistry A 2019 v.7 no.8 pp. 3577-3582
ISSN:
2050-7496
Subject:
zinc; zinc acetate,   etc   ; chemical bonding; crosslinking; thermoplastics;     Show all 5 Subjects
Abstract:
... A facile strategy of incorporating dynamic carboxylic zinc ion interactions into traditional linear polymers was developed to achieve the recyclability of crosslinked polymers. For newly synthesized polymers, pendant carboxyl can be incorporated into polymer chains during the synthesis process and subsequently crosslinked with zinc acetate. For commercial thermoplastics with only C–C bonds in the ...
DOI:
10.1039/c8ta11866c

2. Analysis of {10–12} twinning variants’ selection behavior during multi-directional compression in Mg–3Al–1Zn magnesium alloy

Author:
Wang, Bingshu; Shi, Jingjing; Ye, Peng; Deng, Liping; Guo, Ning; Wang, Chen; Chen, Junfeng; Li, Qiang
Source:
Journal of materials science 2019 v.54 no.13 pp. 9797-9808
ISSN:
0022-2461
Subject:
zinc,   etc   ; alloys; aluminum; magnesium;     Show all 4 Subjects
Abstract:
... The {10–12} twinning activities of Mg–3Al–1Zn magnesium alloy during multi-directional compression were investigated by in situ EBSD technology. The specimen was pre-compressed to a strain of 3.2% along TD, followed by a compression with a strain of 2.6% along RD, and finally a compression with a strain of 2.5% along TD. The Schmid factor, strain compatibility factor (m′) and twinning strain tenso ...
DOI:
10.1007/s10853-019-03561-1

3. Factors that determine thione(thiol)–disulfide interconversion in a bis(thiosemicarbazone) copper(ii) complex

Author:
Jeong, Haewon; Kang, Yeji; Kim, Jin; Kim, Byung-Kwon; Hong, Seungwoo
Source:
RSC advances 2019 v.9 no.16 pp. 9049-9052
ISSN:
2046-2069
Subject:
zinc,   etc   ; copper; ligands; thiols;     Show all 4 Subjects
Abstract:
... Solvent-, acidity-, and redox-responsive thione(thiol)–disulfide interconversion were achieved by a dinuclear copper(ii) complex bearing a bis(thiosemicarbazone) (bTSC) ligand. The role of copper(ii) ion coordination was rationalized by parallel comparison with a bare bTSC ligand and zinc(ii) bTSC complexes under identical reaction conditions. ...
DOI:
10.1039/c9ra01115c

4. Correction: Analysis on the energetics, magnetism and electronic properties in a 45° ZnO grain boundary doped with Gd

Author:
Sasikala Devi, Assa Aravindh; Roqan, Iman S.
Source:
RSC advances 2019 v.9 no.5 pp. 2380
ISSN:
2046-2069
Subject:
zinc oxide,   etc   ; gadolinium; magnetism;     Show all 3 Subjects
Abstract:
... Correction for ‘Analysis on the energetics, magnetism and electronic properties in a 45° ZnO grain boundary doped with Gd’ by Assa Aravindh Sasikala Devi et al., RSC Adv., 2018, 8, 13850–13856. ...
DOI:
10.1039/c9ra90001b

5. Tire and road wear particles in road environment – Quantification and assessment of particle dynamics by Zn determination after density separation

Author:
Klöckner, Philipp; Reemtsma, Thorsten; Eisentraut, Paul; Braun, Ulrike; Ruhl, Aki Sebastian; Wagner, Stephan
Source:
Chemosphere 2019 v.222 pp. 714-721
ISSN:
0045-6535
Subject:
zinc,   etc   ; particulates; runoff; sediments; tires; traffic;     Show all 6 Subjects
Abstract:
... In this study, a method for the determination of tire and road wear particle (TRWP) contents in particulate samples from road environment was developed. Zn was identified as the most suitable elemental marker for TRWP, due to its high concentration in tire tread and the possibility of separation from other Zn sources. The mean concentration of 21 tire samples was 8.7 ± 2.0 mg Zn/g. Before quantifi ...
DOI:
10.1016/j.chemosphere.2019.01.176

6. Flexible hybrid structure piezoelectric nanogenerator based on ZnO nanorod/PVDF nanofibers with improved output

Author:
Fakhri, Parisa; Amini, Babak; Bagherzadeh, Roohollah; Kashfi, Mohammad; Latifi, Masoud; Yavari, Neda; Asadi Kani, Soodeh; Kong, Lingxue
Source:
RSC advances 2019 v.9 no.18 pp. 10117-10123
ISSN:
2046-2069
Subject:
zinc oxide,   etc   ; deformation; energy; nanofibers; nanorods; thermoplastics;     Show all 6 Subjects
Abstract:
... This study aimed to develop a novel hybrid piezoelectric structure based on poly(vinylidene difluoride) nanofibers (PVDF NFs) and zinc oxide nanorods (ZnO NRs) which eliminate the need for post poling treatment in such hybrid structures. Mechanism of electrical performance enhancement of the hybrid structure is also discussed in this paper. To study the effect of hybridization on piezoelectric per ...
DOI:
10.1039/c8ra10315a

7. Flash memory devices and bistable nonvolatile resistance switching properties based on PFO doping with ZnO

Author:
Huang, Jiahe; Zhao, Xiaofeng; Zhang, Hongyan; Bai, Ju; Wang, Shuhong; Wang, Cheng; Ma, Dongge; Hou, Yanjun
Source:
RSC advances 2019 v.9 no.17 pp. 9392-9400
ISSN:
2046-2069
Subject:
zinc oxide,   etc   ; Suzuki reaction; computer hardware; nanoparticles;     Show all 4 Subjects
Abstract:
... In this study, poly(9,9-dioctylfluorene-2,7-diyl) (PFO) was synthesized through the Suzuki reaction, and it was characterized. A sandwich type memory device based on PFO and PFO:ZnO, was fabricated using rotary-coating technology. I–V characteristics of the device were studied, and the effects of ZnO nanoparticle (NP) doping content on the performances of the device were discussed. The best doping ...
DOI:
10.1039/c9ra00405j

8. The effect of ZnCl₂ activation on microwave absorbing performance in walnut shell-derived nano-porous carbon

Author:
Wang, Lixi; Zhou, Panpan; Guo, Yu; Zhang, Jing; Qiu, Xu; Guan, Yongkang; Yu, Mingxun; Zhu, Hongli; Zhang, Qitu
Source:
RSC advances 2019 v.9 no.17 pp. 9718-9728
ISSN:
2046-2069
Subject:
zinc chloride,   etc   ; carbon; walnut hulls; walnuts;     Show all 4 Subjects
Abstract:
... Porous carbon has been expected to be a potential candidate as a lightweight and efficient microwave absorber. Nano-porous carbon carbonized directly from a walnut shell exhibits narrow microwave absorption frequency bandwidth, while the activation process can adjust the pore structure and optimize the microwave absorption performance. Herein, porous carbon materials were successfully prepared usi ...
DOI:
10.1039/c8ra09932d

9. Evaluation of the bio-protection mechanism in diffusive exchange permeable reactive barriers for the treatment of acid mine drainage

Author:
Torregrosa, Martin; Schwarz, Alex; Nancucheo, Ivan; Balladares, Eduardo
Source:
The Science of the total environment 2019 v.655 pp. 374-383
ISSN:
0048-9697
Subject:
zinc,   etc   ; acid mine drainage; copper; monitoring; toxicity;     Show all 5 Subjects
Abstract:
... This research studied the bio-protection mechanism based on chemical gradients in diffusive exchange permeable reactive barriers, evaluating the thickness of the reactive layers in the treatment of concentrated acid mine drainage (AMD). Six bench-scale reactors were constructed with reactive layer thicknesses of 2.5, 5, and 7.5 cm in duplicate. The reactors were first fed a sulfated solution for 5 ...
DOI:
10.1016/j.scitotenv.2018.11.083

10. Novel blue-light-emitting diodes based on nanostructured ZnSe/ZnS multilayer films

Author:
Ou, Kai; Wang, Shenwei; Zhang, Xiqing; Yi, Lixin
Source:
Journal of materials science 2019 v.54 no.5 pp. 4049-4055
ISSN:
0022-2461
Subject:
zinc sulfide,   etc   ; diodes; electric potential; electrochemiluminescence; photoluminescence;     Show all 5 Subjects
Abstract:
... In this work, we demonstrated a organic/inorganic hybrid blue-light-emitting diodes (LEDs) device, where nanostructured ZnSe/ZnS multilayer films were used as light-emitting layer and poly(3,4-ethylene-dioxythiophene)–poly(styrene-sulfonate) acted as hole injection layer. Both intense blue photoluminescence and electroluminescence emission of this device were observed. The turn-on voltage of the b ...
DOI:
10.1007/s10853-018-3132-4

11. A universal method to create surface patterns with extreme wettability on metal substrates

Author:
Sun, Jing; Chen, Chuanzhen; Song, Jinlong; Liu, Junkai; Yang, Xiaolong; Liu, Jiyu; Liu, Xin; Lu, Yao
Source:
Journal of colloid and interface science 2019 v.535 pp. 100-110
ISSN:
0021-9797
Subject:
zinc,   etc   ; aluminum; magnesium; steel; titanium; wettability;     Show all 6 Subjects
Abstract:
... Extreme wettability surfaces have attracted more and more attention due to their practical applications, however, few reports have shown a universal method to create surface patterns with extreme wettability on a variety of metals. In this paper, a mask-assisted dual-chemical-processing approach without special modification is used to prepare the extreme wettability patterns on various metal subst ...
DOI:
10.1016/j.jcis.2018.09.078

12. Single metal deposition versus physical developer: A comparison between two advanced fingermark detection techniques

Author:
Moret, Sébastien; Lee, Po Lun Timothy; de la Hunty, Mackenzie; Spindler, Xanthe; Lennard, Chris; Roux, Claude
Source:
Forensic science international 2019 v.294 pp. 103-112
ISSN:
0379-0738
Subject:
zinc,   etc   ; amino acids; gold; silver; staining;     Show all 5 Subjects
Abstract:
... Single metal deposition (SMD II) is a fingermark detection technique based on the use of colloidal gold. The technique has been simplified and optimised over the years to become more reliable, sensitive and user-friendly. Physical developer (PD) is a well-established detection method based on silver deposition from a redox solution. This study presents an extensive comparison of SMD II against PD ...
DOI:
10.1016/j.forsciint.2018.10.032

13. Hierarchical zinc oxide/reduced graphene oxide composite: Preparation route, mechanism study and lithium ion storage

Author:
Tan, Qingke; Kong, Zhen; Guan, Xianggang; Zhang, Lian Ying; Jiao, Zhengbo; Chen, Hai Chao; Wu, Guanglei; Xu, Binghui
Source:
Journal of colloid and interface science 2019 v.548 pp. 233-243
ISSN:
0021-9797
Subject:
zinc; zinc oxide,   etc   ; ambient temperature; anodes; catalysts; graphene; graphene oxide; lithium; lithium batteries; nanoparticles; reaction mechanisms;     Show all 11 Subjects
Abstract:
... A novel and simple approach to preparing hierarchical zinc oxide/reduced graphene oxide (ZnO/RGO@RGO) composite is demonstrated using few-layered graphene oxide (GO) and metal zinc as starting materials following combined processes, including in-situ metal zinc reduction and catalyzed GO deoxygenation. Metal zinc can directly reduce GO sheets in aqueous GO suspension at room temperature to obtain ...
DOI:
10.1016/j.jcis.2019.04.041

14. ZIF-8 derived hollow CuO/ZnO material for study of enhanced photocatalytic performance

Author:
Lei, Xianyu; Cao, Yang; Chen, Qianlin; Ao, Xianquan; Fang, Yu; Liu, Baojun
Source:
Colloids and surfaces 2019 v.568 pp. 1-10
ISSN:
0927-7757
Subject:
zinc; zinc oxide,   etc   ; colloids; copper; cupric oxide; human health; nanoparticles; organic matter; photocatalysis; photocatalysts; tetracycline; zeolites;     Show all 12 Subjects
Abstract:
... Tetracycline hydrochloride (TC) is a broad-spectrum antibiotic extensively used in medical and veterinary fields. However, its excess harms the environment and human health. Recently, construction of CuO/ZnO heterojunctions has a very good effect in the treatment of organic matter in water. In this study, we used zeolite imidazolate framework (ZIF-8) as initial material to synthesize porous and ho ...
DOI:
10.1016/j.colsurfa.2019.01.072

15. Disordered structure of ZnAl2O4 phase and the formation of a Zn NCO complex in ZnAl mixed oxide catalysts for glycerol carbonylation with urea

Author:
Nguyen-Phu, Huy; Shin, Eun Woo
Source:
Journal of catalysis 2019 v.373 pp. 147-160
ISSN:
0021-9517
Subject:
zinc; zinc oxide,   etc   ; acidity; aluminum; aluminum oxide; carbonates; catalysts; cations; citrates; glycerol; oxygen; urea;     Show all 12 Subjects
Abstract:
... The effect of a disordered ZnAl2O4 spinel structure on glycerol carbonylation with urea was investigated with pure ZnAl2O4 (c-ZnAl2O4) and ZnAl mixed oxide (c-ZnAlO) prepared by a citrate complex method, and ZnAl physically-mixed oxide (p-ZnAlO). During catalysts preparation, a disordered bulk ZnAl2O4 phase generated disordered sites on the surface: the Al3+ cations substituting for Zn2+ cations a ...
DOI:
10.1016/j.jcat.2019.03.043

16. A two-target responsive reversible ratiometric pH nanoprobe: a white light emitting quantum dot complex

Author:
Pramanik, Sabyasachi; Roy, Shilaj; Mondal, Arup; Bhandari, Satyapriya
Source:
Chemical communications 2019 v.55 no.30 pp. 4331-4334
ISSN:
1364-548X
Subject:
zinc; zinc sulfide,   etc   ; chemical reactions; color; light intensity; manganese; pH; quantum dots; sensors (equipment); white light;     Show all 10 Subjects
Abstract:
... Herein we report the use of a white light emitting quantum dot complex (comprising an orange emitting Mn²⁺-doped ZnS quantum dot and greenish-blue emitting zinc-quinolate complex) as a two-target responsive ratiometric reversible pH nanosensor in the physiological range of 6.5–10.3, following changes in their luminescence intensity ratio, color and chromaticity. ...
DOI:
10.1039/c9cc01088b

17. Zeolitic imidazolate framework-8 (ZIF-8)-coated In2O3 nanofibers as an efficient sensing material for ppb-level NO2 detection

Author:
Liu, Yunshi; Wang, Rui; Zhang, Tong; Liu, Sen; Fei, Teng
Source:
Journal of colloid and interface science 2019 v.541 pp. 249-257
ISSN:
0021-9797
Subject:
zinc; zinc oxide,   etc   ; air quality; gases; human health; humidity; hydrophobicity; monitoring; nanocrystals; nanofibers; nitrogen dioxide;     Show all 11 Subjects
Abstract:
... The development of NO2 gas sensors is of great importance for air quality monitoring and human health. In this work, In2O3 and zeolitic imidazolate framework-8 (ZIF-8) heterostructures were synthesized and designed as efficient sensing materials for NO2 detection. The ZIF-8 nanocrystals were uniformly deposited on In2O3 nanofibers (NFs) by using a self-template strategy, where In2O3/ZnO NFs act as ...
DOI:
10.1016/j.jcis.2019.01.052

18. Foliar applied zinc and the performance of pecan trees

Author:
Hounnou, Leon; Wade Brorsen, B.; Biermacher, Jon T.; Rohla, Charles T.
Source:
Journal of plant nutrition 2019 v.42 no.5 pp. 512-516
ISSN:
1532-4087
Subject:
zinc; zinc sulfate,   etc   ; Carya illinoinensis; budbreak; foliar application; leaves; pecans; pollination; seeds; trees;     Show all 10 Subjects
Abstract:
... Pecan [Carya illinoinensis (Wang.) C. Koch.] trees were given four treatments: (i) control (no zinc application) (ii) DeltAg Zinc Plus® applied in fall, at budbreak, and after pollination (iii) DeltAg Zinc Plus applied in fall only and (iv) zinc sulfate 36.6% applied at budbreak, 3 weeks later, and after pollination. Leaf elemental concentration of zinc (Zn) increased with all zinc treatments in y ...
DOI:
10.1080/01904167.2019.1567771

19. Transformation and migration in secondary zinc–air batteries studied by in situ synchrotron X-ray diffraction and X-ray tomography

Author:
Christensen, Mathias K.; Mathiesen, Jette Katja; Simonsen, Søren Bredmose; Norby, Poul
Source:
Journal of materials chemistry A 2019 v.7 no.11 pp. 6459-6466
ISSN:
2050-7496
Subject:
zinc; zinc oxide,   etc   ; X-ray diffraction; anodes; batteries; computed tomography; electrochemistry;     Show all 7 Subjects
Abstract:
... There are numerous challenges associated with developing secondary Zn–air batteries regarding e.g., power density and cycle life. Some of the challenges are related to morphological changes in the anode during cycling due to combined electrochemical and chemical processes involved in the reversible Zn–ZnO transformation. We present a unique in situ synchrotron X-ray diffraction study, where a comb ...
DOI:
10.1039/c8ta11554k

20. Mechanical strength of cold-sintered zinc oxide under biaxial bending

Author:
Lowum, Sarah; Floyd, Richard; Bermejo, Raul; Maria, Jon-Paul
Source:
Journal of materials science 2019 v.54 no.6 pp. 4518-4522
ISSN:
0022-2461
Subject:
zinc acetate; zinc oxide,   etc   ; Raman spectroscopy; Weibull statistics; X-ray diffraction; ceramics; cold; strength (mechanics);     Show all 8 Subjects
Abstract:
... Zinc oxide is densified to 97% by the cold sintering process using an aqueous zinc acetate solution as the secondary transport phase. The mechanical response of the cold-sintered zinc oxide ceramics is investigated through the ball-on-three-balls biaxial bending technique. The analysis demonstrates that ZnO cold-sintered samples follow a Weibull distribution with a characteristic strength (σ₀ ~ 65 ...
DOI:
10.1007/s10853-018-3173-8