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1. Electrophoresis of a highly charged dielectric fluid droplet in electrolyte solutions

Author:
Wu, Yvonne; Fan, Leia; Jian, Elaine; Lee, Eric
Source:
Journal of colloid and interface science 2021 v.598 pp. 358-368
ISSN:
0021-9797
Subject:
electrolytes,   etc   ; droplets; drugs; electrophoresis;     Show all 4 Subjects
Abstract:
... Electrophoresis of a dielectric fluid droplet with arbitrary surface potentials is investigated theoretically in this study. A pseudo-spectral method based on Chebyshev polynomials is adopted to solve the governing electrokinetic equations. Droplet mobilities are expressed as functions of electrolyte strength for fluid droplets with various viscosities and surface potentials. Effects of various el ...
DOI:
10.1016/j.jcis.2021.03.179

2. Surface modification of CuS counter electrodes by hydrohalic acid treatment for improving interfacial charge transfer in quantum-dot-sensitized solar cells

Author:
Muthalif, Mohammed Panthakkal Abdul; Choe, Youngson
Source:
Journal of colloid and interface science 2021 v.595 pp. 15-24
ISSN:
0021-9797
Subject:
electrolytes,   etc   ; acid treatment; electrochemistry;     Show all 3 Subjects
Abstract:
... High charge transfer resistance and low electrocatalytic activity of counter electrodes (CEs) are mainly responsible for the poor photovoltaic performance of quantum-dot-sensitized solar cells (QDSSCs). Herein, a novel strategy has been successfully introduced for the first time to improve the electrocatalytic activity and charge transfer properties of a copper sulfide (CuS) CE by modifying it wit ...
DOI:
10.1016/j.jcis.2021.03.113

3. Strategies for boosting carbon electrocatalysts for the oxygen reduction reaction in non-aqueous metal–air battery systems

Author:
Li, Weijie; Han, Chao; Zhang, Kai; Chou, Shulei; Dou, Shixue
Source:
Journal of materials chemistry A 2021 v.9 no.11 pp. 6671-6693
ISSN:
2050-7496
Subject:
electrolytes,   etc   ; batteries; carbon; electrochemistry;     Show all 4 Subjects
Abstract:
... Carbon-based materials stand out from all possible non-precious metal-based oxygen reduction reaction (ORR) catalysts, owing to their low cost, high conductivity, and variety of allotropes with different bonding and structures. There have been many reviews on the ORR performance of carbon-based materials in aqueous electrolyte, but until now, there has been no specific review on the ORR activity o ...
DOI:
10.1039/d1ta00203a

4. Enhanced Cycling Stability of O3-Type Na[Ni₀.₅Mn₀.₅]O₂ Cathode through Sn Addition for Sodium-Ion Batteries

Author:
Ryu, Hoon-Hee; Han, Geumjae; Yu, Tae-Yeon; Sun, Yang-Kook
Source:
Journal of physical chemistry 2021 v.125 no.12 pp. 6593-6600
ISSN:
1932-7455
Subject:
electrolytes,   etc   ; cathodes; phase transition;     Show all 3 Subjects
Abstract:
... Despite their high discharge capacity, O3-type layered cathodes for sodium-ion batteries (SIBs) suffer from rapid capacity fading caused by detrimental phase transitions. A series of O3-type layered Na[Ni₀.₅Mn₀.₅]O₂ (NM) cathodes with different amounts of Sn were synthesized in this study by using uniformly Sn-coated precursors prepared by a wet method to address this problem. The introduction of ...
DOI:
10.1021/acs.jpcc.1c00522

5. Recent advances in two-dimensional materials for alkali metal anodes

Author:
Ma, Lianbo; Wu, Junxiong; Zhu, Guoyin; Lv, Yaohui; Zhang, Yizhou; Pang, Huan
Source:
Journal of materials chemistry A 2021 v.9 no.9 pp. 5232-5257
ISSN:
2050-7496
Subject:
electrolytes,   etc   ; anodes; energy density;     Show all 3 Subjects
Abstract:
... Alkali metal anodes (AMAs) with high theoretical capacity, high energy density, and low redox potentials have attracted tremendous attention for high-energy-density batteries. However, their practical applications are hindered by severe metal dendrite growth, detrimental side reactions, and infinite volume expansion during plating and stripping processes. In this review, we summarize the recent ad ...
DOI:
10.1039/d0ta10537f

6. Modifying an ultrathin insulating layer to suppress lithium dendrite formation within garnet solid electrolytes

Author:
Tang, Shijun; Chen, Guiwei; Ren, Fucheng; Wang, Hongchun; Yang, Wu; Zheng, Chenxi; Gong, Zhengliang; Yang, Yong
Source:
Journal of materials chemistry A 2021 v.9 no.6 pp. 3576-3583
ISSN:
2050-7496
Subject:
electrolytes,   etc   ; chemistry; irradiation; lithium;     Show all 4 Subjects
Abstract:
... The electronic conductivity of solid electrolytes, which plays an important role in inducing Li dendrite deposition, is a key obstacle to the practical application of Li metal in all-solid-state lithium metal batteries. Herein, an ultrathin insulating LiF coating with controllable thickness is proposed as an electronic isolation layer to inhibit the formation of Li dendrites. The homogeneous LiF i ...
DOI:
10.1039/d0ta11311e

7. A highly concentrated electrolyte for high-efficiency potassium metal batteries

Author:
Xu, Wenxin; Wang, Huwei; Hu, Junyang; Zhang, Haodong; Zhang, Biao; Kang, Feiyu; Zhai, Dengyun
Source:
Chemical communications 2021 v.57 no.8 pp. 1034-1037
ISSN:
1364-548X
Subject:
electrolytes,   etc   ; diethylene glycol; potassium;     Show all 3 Subjects
Abstract:
... We report a highly concentrated electrolyte consisting of 4 M potassium bis(fluorosulfonyl)imide (KFSI) in diethylene glycol dimethyl ether (DEGDME). This new electrolyte enables stable cycling of K metal anodes with a high CE (over 98% over 400 cycles), and excellent capacity retention (99.7% after 500 cycles) of K||potassium Prussian blue (KPB) batteries. ...
DOI:
10.1039/d0cc07266d

8. Electrochemical In Situ Video-STM Studies of the Phase Transition of CO Adlayers on Pt(111) Electrodes

Author:
Wei, Jie; Chen, Yan-Xia; Magnussen, Olaf M.
Source:
Journal of physical chemistry 2021 v.125 no.5 pp. 3066-3072
ISSN:
1932-7455
Subject:
electrolytes,   etc   ; electrochemistry; phase transition;     Show all 3 Subjects
Abstract:
... The potential-dependent (2 × 2)-3CO → (√19 × √19)R23.4°-13CO phase transition of CO adlayers on Pt(111) in a 0.1 M H₂SO₄ electrolyte containing minor amounts of CO was studied on the subsecond time scale by in situ high-speed scanning tunneling microscopy. At a potential of 0.20 V versus Ag/AgCl, the (2 × 2)-3CO phase is converted into an apparent (1 × 1)-CO adlayer. Upon increasing the potential ...
DOI:
10.1021/acs.jpcc.0c10890

9. Electrochemically induced iodine migration in mixed halide perovskites: suppression through chloride insertion

Author:
Cho, Junsang; DuBose, Jeffrey T.; Mathew, Preethi S.; Kamat, Prashant V.
Source:
Chemical communications 2021 v.57 no.2 pp. 235-238
ISSN:
1364-548X
Subject:
electrolytes,   etc   ; chlorides; electrochemistry; iodine;     Show all 4 Subjects
Abstract:
... The role of chloride in improving the stability of mixed halide perovskites (MAPbClₓBr₀.₅₍₁₋ₓ₎I₀.₅₍₁₋ₓ₎)₃ is probed using spectroelectrochemistry. The injection of holes into mixed halide perovskite films through applied anodic bias results in the selective migration of iodine with ultimate expulsion into the electrolyte. Increasing the Cl content (x = 0 to 0.1) in the mixed halide perovskite supp ...
DOI:
10.1039/d0cc06217k

10. Microcrack generation and modification of Ni-rich cathodes for Li-ion batteries: A review

Author:
Li, Jingyi; Zhou, Zhiwei; Luo, Ziyan; He, Zhenjiang; Zheng, Junchao; Li, Yunjiao; Mao, Jing; Dai, Kehua
Source:
Sustainable materials and technologies 2021 v.29 pp. e00305
ISSN:
2214-9937
Subject:
electrolytes,   etc   ; energy density; liquids; nickel;     Show all 4 Subjects
Abstract:
... Ni-rich transition metal layered oxides as one of the most promising cathodes for Li-ion batteries possess discernible advantages such as high energy density and discharge capacity. Despite their superiority, Ni-rich cathodes suffer from severe microcracks within the secondary particles, particularly when the nickel content exceeds 80%, which causes liquid electrolyte penetrates the interior of se ...
DOI:
10.1016/j.susmat.2021.e00305

11. Functional polymers in electrolyte optimization and interphase design for lithium metal anodes

Author:
Zhang, Caihong; Jin, Tong; Cheng, Guang; Yuan, Shuai; Sun, Zongjie; Li, Nian-Wu; Yu, Le; Ding, Shujiang
Source:
Journal of materials chemistry A 2021 v.9 no.23 pp. 13388-13401
ISSN:
2050-7496
Subject:
electrolytes,   etc   ; anodes; chemistry; interphase; lithium;     Show all 5 Subjects
Abstract:
... The lithium metal anode (LMA) is considered one of the most promising anode materials because of its highest specific capacity and lowest reduction potential. However, the application of LMA is hindered by uncontrollable dendrite growth, an unstable interphase, and large volume fluctuations. The optimization of electrolytes and the introduction of artificial interphase layers are promising ways to ...
DOI:
10.1039/d1ta02297k

12. Inverted Ion Current Rectification-Based Chemical Delivery Probes for Stimulation of Neurons

Author:
Oh, Min-Ah; Shin, Chang Il; Kim, Moonjoo; Kim, Jayol; Kang, Chung Mu; Han, Seok Hee; Sun, Jeong-Yun; Oh, Seung Soo; Kim, Yang-Rae; Chung, Taek Dong
Source:
ACS applied materials & interfaces 2021 v.13 no.23 pp. 26748-26758
ISSN:
1944-8252
Subject:
electrolytes,   etc   ; gels; glutamic acid; nanopores;     Show all 4 Subjects
Abstract:
... Ion current rectification (ICR), diodelike behavior in surface-charged nanopores, shows promise in the design of delivery probes for manipulation of neural networks as it can solve diffusive leakages that might be critical in clinical and research applications. However, it has not been achieved because ICR has restrictions in nanosized dimension and low electrolyte concentration, and rectification ...
DOI:
10.1021/acsami.1c04949

13. Material and configuration design strategies towards flexible and wearable power supply devices: a review

Author:
Gao, Jiyuan; Shang, Kezheng; Ding, Yichun; Wen, Zhenhai
Source:
Journal of materials chemistry A 2021 v.9 no.14 pp. 8950-8965
ISSN:
2050-7496
Subject:
electrolytes,   etc   ; chemistry; electrodes; human health;     Show all 4 Subjects
Abstract:
... Flexible and wearable sensors have shown great potential in tremendous applications such as human health monitoring, smart robots, and human–machine interfaces, yet the lack of suitable flexible power supply devices remains a great challenge hindering their practical applications. To this end, it is essential to develop novel flexible power supply devices that are highly flexible, lightweight, min ...
DOI:
10.1039/d0ta11260g

14. Elucidating the nature of grain boundary resistance in lithium lanthanum titanate

Author:
Symington, Adam R.; Molinari, Marco; Dawson, James A.; Statham, Joel M.; Purton, John; Canepa, Pieremanuele; Parker, Stephen C.
Source:
Journal of materials chemistry A 2021 v.9 no.10 pp. 6487-6498
ISSN:
2050-7496
Subject:
electrolytes,   etc   ; lanthanum; lithium; molecular dynamics;     Show all 4 Subjects
Abstract:
... Solid electrolytes for all-solid-state batteries are generating remarkable research interest as a means to improve the safety, stability and performance of rechargeable batteries. Solid electrolytes are often polycrystalline and the effect that grain boundaries have on the material properties is often not fully characterised. Here, we present a comprehensive molecular dynamics study that quantifie ...
DOI:
10.1039/d0ta11539h

15. The in situ formation of an electrolyte via the lithiation of Mg(BH₄)₂ in an all-solid-state lithium battery

Author:
Sato, Hiroki; Sakamoto, Ryo; Minami, Hironari; Izumi, Hiroaki; Ideta, Keiko; Inoishi, Atsushi; Okada, Shigeto
Source:
Chemical communications 2021 v.57 no.21 pp. 2605-2608
ISSN:
1364-548X
Subject:
electrolytes,   etc   ; carbon; electrodes; lithium batteries;     Show all 4 Subjects
Abstract:
... The present work proposes a new approach to increasing the capacity of all-solid-state batteries, based on the in situ formation of an electrolyte in a Mg(BH₄)₂ electrode. Charge/discharge assessments of the electrode composed of Mg(BH₄)₂ and acetylene black showed an initial reversible capacity of 563 mA h g⁻¹-Mg(BH₄)₂. ...
DOI:
10.1039/d0cc08366f

16. Characterization of various geometric arrangements of “air‐assisted” flow gating interfaces for capillary electrophoresis

Author:
Opekar, František; Tůma, Petr
Source:
Electrophoresis 2021 v.42 no.6 pp. 749-755
ISSN:
0173-0835
Subject:
electrolytes,   etc   ; ; air; capillary electrophoresis; geometry;     Show all 5 Subjects
Abstract:
... For connecting flow‐through analytical methods with capillary electrophoresis, a chip working in the air‐assisted flow gating interface regime is cast from poly(dimethylsiloxane). In the injection space, the exit from the delivery capillary is placed close to the entrance to the separation capillary. Prior to injecting the sample into the separation capillary, the background electrolyte is forced ...
DOI:
10.1002/elps.202000305

17. Crucial Challenges and Recent Optimization Progress of Metal–Sulfur Battery Electrolytes

Author:
Mu, Pengzhou; Dong, Tiantian; Jiang, Hongzhu; Jiang, Meifang; Chen, Zhou; Xu, Hantao; Zhang, Huanrui; Cui, Guanglei
Source:
Energy & fuels 2021 v.35 no.3 pp. 1966-1988
ISSN:
1520-5029
Subject:
electrolytes,   etc   ; batteries; energy; longevity; sulfur;     Show all 5 Subjects
Abstract:
... By virtue of environmental friendliness, low cost, and the high theoretical capacity of sulfur (1675 mAh/g), metal–sulfur batteries (MSBs), as promising next-generation rechargeable cells, have attracted ever-increasing attention from both academic and industrial fields. Despite good progress, however, thus far MSBs have been rarely able to bring their energy storage performance up to the needed l ...
DOI:
10.1021/acs.energyfuels.0c04264

18. Analysis of initial stage of colloidal particles flocculation induced by different degree branching polyelectrolytes

Author:
Lim, Voon Huey; Adachi, Yasuhisa
Source:
Colloids and surfaces 2021 v.625 pp. 126986
ISSN:
0927-7757
Subject:
electrolytes,   etc   ; electrophoresis; flocculation; hydrodynamics; latex; polystyrenes;     Show all 6 Subjects
Abstract:
... Flocculation performance of polyelectrolytes is affected by their molecular branching. To unravel the mechanisms involved, we performed flocculation experiments of negatively charged polystyrene latex particles using three cationic polyacrylamide-based polyelectrolytes differing only in the degree of molecular branching. In the experiment, a simple linear chain molecule and two branched polyelectr ...
DOI:
10.1016/j.colsurfa.2021.126986

19. Synergistic PF6− and FSI− intercalation enables stable graphite cathode for potassium-based dual ion battery

Author:
Tan, Hong; Zhai, Dengyun; Kang, Feiyu; Zhang, Biao
Source:
Carbon 2021 v.178 pp. 363-370
ISSN:
0008-6223
Subject:
electrolytes,   etc   ; Raman spectroscopy; cathodes; chemistry; graphene;     Show all 5 Subjects
Abstract:
... Potassium-based dual ion batteries have emerged as promising alternatives to the prevailing lithium-ion batteries due to the advantages in cost and sustainability. Single-anion intercalation into graphite takes place on the cathode side, but it usually delivers a low capacity with poor Coulombic efficiency in potassium-based systems. We demonstrate the performance could be significantly boosted th ...
DOI:
10.1016/j.carbon.2021.03.027

20. A graphene oxide coated sulfide-based solid electrolyte for dendrite-free lithium metal batteries

Author:
Li, Jianwei; Li, Yuanyuan; Cheng, Jun; Sun, Qing; Dai, Linna; Nie, Xiangkun; Chen, Lina; Han, Guifang; Ci, Lijie
Source:
Carbon 2021 v.177 pp. 52-59
ISSN:
0008-6223
Subject:
electrolytes,   etc   ; anodes; carbon; electrochemistry; graphene oxide; lithium;     Show all 6 Subjects
Abstract:
... Sulfide-based solid electrolyte is one of the most promising solid electrolytes due to its high ionic conductivity and wide electrochemical window. However, it suffers from serious interfacial issues with lithium metal, which hinder the lithium-ion transport during cycling process and increase the interfacial resistance and instability. Protection only from Li anode side is not enough since Li ent ...
DOI:
10.1016/j.carbon.2021.01.159