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1. Toward an Atomic-Scale Understanding of Electrochemical Interface Structure and Dynamics

Author:
Magnussen, Olaf M.; Groß, Axel
Source:
Journal of the American Chemical Society 2019 v.141 no.12 pp. 4777-4790
ISSN:
1520-5126
Subject:
electrolytes,   etc   ; electrochemistry; electrodes;     Show all 3 Subjects
Abstract:
... For the knowledged-based development of electrochemical processes, a better fundamental understanding of the interfaces between electrodes and electrolytes is necessary. This requires insight into the interface structure and dynamics on the atomic-scale, including that of the liquid electrolyte in the near-surface region, i.e., in the inner and outer part of the electrochemical double layer. This ...
DOI:
10.1021/jacs.8b13188

2. Recent progress in analytical capillary isotachophoresis

Author:
Malá, Zdena; Gebauer, Petr
Source:
Electrophoresis 2019 v.40 no.1 pp. 55-64
ISSN:
0173-0835
Subject:
electrolytes,   etc   ; electrophoresis; instrumentation; surveys;     Show all 4 Subjects
Abstract:
... This review brings a survey of studies on analytical ITP published since 2016 until the first quarter of 2018 and includes chapters about theory and principles, instrumentation and techniques, and analytical applications of ITP. It shows the position of analytical ITP among contemporary separation techniques, where particularly its unique concentrating capabilities keep the interest to include it ...
DOI:
10.1002/elps.201800239

3. Synthesis and Characterization of Novel Triarylamine Derivatives with Dimethylamino Substituents for Application in Optoelectronic Devices

Author:
Wu, Jung-Tsu; Lin, Hsiang-Ting; Liou, Guey-Sheng
Source:
ACS applied materials & interfaces 2019 v.11 no.16 pp. 14902-14908
ISSN:
1944-8252
Subject:
electrolytes,   etc   ; color; electrochemistry; gels; photoluminescence;     Show all 5 Subjects
Abstract:
... Two novel triphenylamine-based derivatives with dimethylamino substituents, N,N′-bis(4-dimethylaminophenyl)-N,N′-bis(4-methoxyphenyl)-1,4-phenylenediamine (NTPPA) and N,N′-bis(4-dimethylaminophenyl)-N,N′-bis(4-methoxyphenyl)-1,1′-biphenyl-4,4′-diamine (NTPB), were readily prepared for investigating the optical and electrochromic behaviors. These two obtained materials were introduced into electroc ...
DOI:
10.1021/acsami.9b00402

4. Significant Reduction of Analysis Time with Bulk Sensors Operating in Nonequilibrium Mode

Author:
Kalinichev, Andrey V.; Pokhvishcheva, Nadezhda V.; Peshkova, Maria A.
Source:
Analytical chemistry 2019 v.91 no.8 pp. 5362-5370
ISSN:
1520-6882
Subject:
electrolytes,   etc   ; lipophilicity; models; pH; polymers;     Show all 5 Subjects
Abstract:
... The concept of reducing the analysis time with the bulk sensors operating in nonequilibrium mode is formulated theoretically and verified experimentally with ion-selective polymeric optodes. The influence of the measurement time on the optical response range, span, median, and sensitivity is calculated and demonstrated experimentally. Model aqueous samples are successfully analyzed using a nonequi ...
DOI:
10.1021/acs.analchem.9b00459

5. An ethyl methyl sulfone co-solvent eliminates macroscopic morphological instabilities of lithium metal anode

Author:
Shin, Woochul; So, Kang Pyo; Stickle, William F.; Su, Cong; Lu, Jun; Li, Ju; Ji, Xiulei
Source:
Chemical communications 2019 v.55 no.23 pp. 3387-3389
ISSN:
1364-548X
Subject:
electrolytes,   etc   ; anodes; chemical reactions; lithium;     Show all 4 Subjects
Abstract:
... Lithium metal anodes suffer from a short cycle life, and the parasitic reactions of lithium with electrolytes are widely observed. Common sense is to avoid such reactions. Herein, we head in the opposite direction by using an oxidizing co-solvent, ethyl methyl sulfone, in the electrolyte, which addresses the ‘dendrite’ issue entirely, resulting in a dense and macroscopically smooth surface morphol ...
DOI:
10.1039/c9cc00046a

6. Coarse-Grained Simulations of Nanogel Composites: Electrostatic and Steric Effects

Author:
Ramos-Tejada, María del Mar; Quesada-Pérez, Manuel
Source:
Macromolecules 2019 v.52 no.6 pp. 2223-2230
ISSN:
1520-5835
Subject:
electrolytes,   etc   ; absorption; electrostatic interactions; nanoparticles;     Show all 4 Subjects
Abstract:
... Monte Carlo coarse-grained simulations of nanogels loaded with nanoparticles are presented, paying special attention to two phenomena revealed by experiments with real composites: the deswelling and charge inversion observed after the absorption of nanoparticles. Both can be justified here exclusively in terms of electrostatic and excluded volume interactions. According to our results, charge inve ...
DOI:
10.1021/acs.macromol.8b02657

7. Voltage-controlled ion transport and selectivity in a conical nanopore functionalized with pH-tunable polyelectrolyte brushes

Author:
Hsu, Jyh-Ping; Yang, Shu-Tuan; Lin, Chih-Yuan; Tseng, Shiojenn
Source:
Journal of colloid and interface science 2019 v.537 pp. 496-504
ISSN:
0021-9797
Subject:
electrolytes,   etc   ; nanopores; pH; salt concentration;     Show all 4 Subjects
Abstract:
... Chemically functionalized bioinspired nanopores are widely adopted to control the ionic transport for various purposes. A detailed understanding of the underlying mechanisms is not only desirable but also necessary for device design and experimental data interpretation. Here, the conductance and the ion selectivity of a conical nanopore surface modified by a polyelectrolyte (PE) layer are studied ...
DOI:
10.1016/j.jcis.2018.11.046

8. Stabilizing the Interface between Sodium Metal Anode and Sulfide-Based Solid-State Electrolyte with an Electron-Blocking Interlayer

Author:
Hu, Pu; Zhang, Ye; Chi, Xiaowei; Kumar Rao, Karun; Hao, Fang; Dong, Hui; Guo, Fangmin; Ren, Yang; Grabow, Lars C.; Yao, Yan
Source:
ACS applied materials & interfaces 2019 v.11 no.10 pp. 9672-9678
ISSN:
1944-8252
Subject:
electrolytes,   etc   ; anodes; materials science; sodium;     Show all 4 Subjects
Abstract:
... Sulfide-based Na-ion conductors are promising electrolytes for all-solid-state sodium batteries (ASSSBs) because of high ionic conductivity and favorable formability. However, no effective strategy has been reported for long-duration Na cycling with sulfide-based electrolytes because of interfacial challenges. Here we demonstrate that a cellulose–poly(ethylene oxide) (CPEO) interlayer can stabiliz ...
DOI:
10.1021/acsami.8b19984

9. Reply to the ‘Comment on “Bi-functional Li₂B₁₂H₁₂ for energy storage and conversion applications: solid-state electrolyte and luminescent down-conversion dye”’ by M. Paskevicius, A. S. Jakobsen, M. Bregnhøj, B. R. S. Hansen, K. T. Møller, P. R. Ogilby and T. R. Jensen, J. Mater. Chem. A., 2019, DOI: 10.1039/c8ta10735a

Author:
Teprovich, Joseph A.; Zidan, Ragaiy
Source:
Journal of materials chemistry A 2019 v.7 no.8 pp. 4188-4189
ISSN:
2050-7496
Subject:
electrolytes,   etc   ; chemistry; dyes; energy; luminescence;     Show all 5 Subjects
Abstract:
... We reply to the comment raised by M. Paskevicius et al. on our paper characterizing the properties of the Li₂B₁₂H₁₂closo-borane structure. ...
DOI:
10.1039/c9ta00407f

10. Ultrathin nanodendrite surrounded PtRuNi nanoframes as efficient catalysts for methanol electrooxidation

Author:
Shang, Changshuai; Guo, Yaxiao; Wang, Erkang
Source:
Journal of materials chemistry A 2019 v.7 no.6 pp. 2547-2552
ISSN:
2050-7496
Subject:
electrolytes,   etc   ; catalysts; durability; methanol; oxidation;     Show all 5 Subjects
Abstract:
... Herein, we provided the successful preparation of PtRuNi nanoframes which were surrounded with ultrathin Ru nanodendrites (PtRuNi FDs). Benefiting from the unique three-dimensional open architecture and suitable composition, the mass activity of PtRuNi FDs towards methanol oxidation reaction in acidic electrolyte can reach up to 1.49 A mgPₜ⁻¹, which is 2.9-fold higher than that of commercial Pt/C ...
DOI:
10.1039/c9ta00191c

11. Advanced cathode materials and efficient electrolytes for rechargeable batteries: practical challenges and future perspectives

Author:
Khan, Safyan Akram; Ali, Shahid; Saeed, Khalid; Usman, Muhammad; Khan, Ibrahim
Source:
Journal of materials chemistry A 2019 v.7 no.17 pp. 10159-10173
ISSN:
2050-7496
Subject:
electrolytes,   etc   ; batteries; cathodes; durability; electrochemistry; energy;     Show all 6 Subjects
Abstract:
... Increasing dependence on rechargeable batteries has led researchers to investigate the characteristics of materials and various crucial parameters, which could enhance their overall performance in terms of stability, charge density, and durability. Besides this, lately, the primary focus is on the safety challenges associated with these architectures. An in-depth understanding of materials’ behavi ...
DOI:
10.1039/c9ta00581a

12. Optimization of local porosity in the electrode as an advanced channel for all-vanadium redox flow battery

Author:
Yoon, Sang Jun; Kim, Sangwon; Kim, Dong Kyu
Source:
Energy 2019 v.172 pp. 26-35
ISSN:
0360-5442
Subject:
electrolytes,   etc   ; batteries; electrodes; energy efficiency; equations; porosity;     Show all 6 Subjects
Abstract:
... Experimental and numerical studies have been carried out to improve the flow distribution by optimizing the local porosity of the electrodes of the all-vanadium redox flow batteries (VFBs) to increase the energy efficiency at high current density. We control the local porosity by inserting extra layer of electrode at inlet and outlet, and the flow field of electrolyte is analyzed numerically. Firs ...
DOI:
10.1016/j.energy.2019.01.101

13. Relieving the “Sudden Death” of Li–O₂ Batteries by Grafting an Antifouling Film on Cathode Surfaces

Author:
Guo, Limin; Wang, Jiawei; Gu, Feng; Ma, Lipo; Zhao, Zhiwei; Liu, Jianjun; Peng, Zhangquan
Source:
ACS applied materials & interfaces 2019 v.11 no.16 pp. 14753-14758
ISSN:
1944-8252
Subject:
electrolytes,   etc   ; adsorption; batteries; cathodes; death; solvents; spectroscopy;     Show all 7 Subjects
Abstract:
... The “sudden-death” phenomenon has been frequently encountered during discharging of Li–O₂ batteries and has been ascribed to the growth of a blocking film of Li₂O₂ on the cathode surface. Recent fundamental study revealed that this dilemma could be addressed by discharging Li₂O₂ in the electrolyte solution rather than on the cathode surface. However, even for Li–O₂ batteries operated under the con ...
DOI:
10.1021/acsami.8b22643

14. Interfacial competition between a borophene-based cathode and electrolyte for the multiple-sulfide immobilization of a lithium sulfur battery

Author:
Rao, Dewei; Liu, Xiaojing; Yang, Huan; Zhang, Linyan; Qiao, Guanjun; Shen, Xiangqian; Xiaohong, Yan; Wang, Gongming; Lu, Ruifeng
Source:
Journal of materials chemistry A 2019 v.7 no.12 pp. 7092-7098
ISSN:
2050-7496
Subject:
electrolytes,   etc   ; batteries; cathodes; chemistry; lithium; nanosheets; sulfur;     Show all 7 Subjects
Abstract:
... The practical applications of lithium–sulfur batteries (LSBs) are mainly hindered by the poor conductivity of the sulfur cathode, polysulfide shuttle and volumetric variation during cycling. To this end, host materials with high conductivity and excellent polysulfide absorbability are extensively employed as the loading scaffolds for sulfur in LSBs. In the present study, three types of borophene n ...
DOI:
10.1039/c8ta12176a

15. A hierarchical interdigitated flow field design for scale-up of high-performance redox flow batteries

Author:
Zeng, Yikai; Li, Fenghao; Lu, Fei; Zhou, Xuelong; Yuan, Yanping; Cao, Xiaoling; Xiang, Bo
Source:
Applied energy 2019 v.238 pp. 435-441
ISSN:
0306-2619
Subject:
electrolytes,   etc   ; batteries; electric potential; electrodes; mass transfer;     Show all 5 Subjects
Abstract:
... The pumping loss of redox flow batteries increases dramatically when scaling up to large-area cells, and becomes a key limiting factor for engineering high-performance cell stacks. This work proposes a hierarchical interdigitated flow field design that has independently regulated distribution/collection channels to lower pumping loss and enhance mass transport: a small quantity of primary branch c ...
DOI:
10.1016/j.apenergy.2019.01.107

16. MOP × MOF: Collaborative Combination of Metal–Organic Polyhedra and Metal–Organic Framework for Proton Conductivity

Author:
Lee, Jiyoung; Lim, Dae-Woon; Dekura, Shun; Kitagawa, Hiroshi; Choe, Wonyoung
Source:
ACS applied materials & interfaces 2019 v.11 no.13 pp. 12639-12646
ISSN:
1944-8252
Subject:
electrolytes,   etc   ; catalysts; coordination polymers; micropores; moieties; porosity;     Show all 6 Subjects
Abstract:
... We report a hybrid solid system, UMOM-100-a and UMOM-100-b, synthesized by incorporation of Cu-based metal–organic polyhedra (MOPs) into a porous metal–organic framework (MOF) host, PCN-777. The MOP guests have acid (SO₃–) functional groups, acting as functionalized nanocages, whereas the porosity is still maintained for proton conductivity. The key parameter for the UMOM-100 series is the number ...
DOI:
10.1021/acsami.9b01026

17. In situ formation of highly controllable and stable Na₃PS₄ as a protective layer for Na metal anode

Author:
Zhao, Yang; Liang, Jianwen; Sun, Qian; Goncharova, Lyudmila V.; Wang, Jiwei; Wang, Changhong; Adair, Keegan R.; Li, Xiaona; Zhao, Feipeng; Sun, Yipeng; Li, Ruying; Sun, Xueliang
Source:
Journal of materials chemistry A 2019 v.7 no.8 pp. 4119-4125
ISSN:
2050-7496
Subject:
electrolytes,   etc   ; anodes; batteries; electric field; electrochemistry; sodium;     Show all 6 Subjects
Abstract:
... Na metal is considered as a promising anode material for Na metal batteries (NMBs) due to its high theoretical specific capacity and low electrochemical potential. However, the Na metal anode faces several challenges, including: (1) safety concerns related to dendrite formation; (2) low coulombic efficiency (CE) and poor cycling performance caused by the unstable solid electrolyte interphase (SEI) ...
DOI:
10.1039/c8ta10174d

18. Outstanding cycle stability and rate capabilities of the all-solid-state Li–S battery with a Li₇P₃S₁₁ glass-ceramic electrolyte and a core–shell S@BP2000 nanocomposite

Author:
Han, Qigao; Li, Xuelei; Shi, Xixi; Zhang, Hongzhou; Song, Dawei; Ding, Fei; Zhang, Lianqi
Source:
Journal of materials chemistry A 2019 v.7 no.8 pp. 3895-3902
ISSN:
2050-7496
Subject:
electrolytes,   etc   ; ambient temperature; batteries; cathodes; electrochemistry; nanocomposites;     Show all 6 Subjects
Abstract:
... All-solid-state Li–S batteries (ASSLSBs) can substantially alleviate poly-sulfide shuttling, which greatly improves the electrochemical performance of Li–S batteries. However, poor cycling and rate performances are still severe challenges for ASSLSBs and are mainly ascribed to the low ionic conductivity of the solid electrolyte and the unstable cathode/solid electrolyte interface resulting from th ...
DOI:
10.1039/c8ta12443d

19. Vanadium redox flow battery with slotted porous electrodes and automatic rebalancing demonstrated on a 1 kW system level

Author:
Bhattarai, Arjun; Wai, Nyunt; Schweiss, Rüdiger; Whitehead, Adam; Scherer, Günther G.; Ghimire, Purna C.; Lim, Tuti M.; Hng, Huey Hoon
Source:
Applied energy 2019 v.236 pp. 437-443
ISSN:
0306-2619
Subject:
electrolytes,   etc   ; batteries; electrodes; energy efficiency; tanks; vanadium;     Show all 6 Subjects
Abstract:
... Capacity loss due to electrolyte crossover through the membrane and pump losses due to pressure drop at the porous electrodes are widely known issues in vanadium redox flow batteries during operation. In commercial systems, these losses account for a significant reduction in the overall efficiency. Previous studies have been focused on the development of new membranes to solve the capacity loss, a ...
DOI:
10.1016/j.apenergy.2018.12.001

20. Correlating lattice distortions, ion migration barriers, and stability in solid electrolytes

Author:
Kim, Kwangnam; Siegel, Donald J.
Source:
Journal of materials chemistry A 2019 v.7 no.7 pp. 3216-3227
ISSN:
2050-7496
Subject:
electrolytes,   etc   ; batteries; chemistry; models; potential energy; thermodynamics;     Show all 6 Subjects
Abstract:
... The emergence of solid electrolytes with ionic conductivities comparable to that of liquids has improved the prospects for realizing solid-state batteries. Although a small number of ionically-conducting solids are now known, most exhibit shortcomings such as limited interfacial stability and susceptibility to dendrite penetration. Consequently, the discovery of alternative solid electrolytes rema ...
DOI:
10.1039/c8ta10989c