High-performance porous uncharged membranes for vanadium flow battery applications created by tuning cohesive and swelling forces

2016 ◽  
Vol 9 (7) ◽  
pp. 2319-2325 ◽  
Author(s):  
Wenjing Lu ◽  
Zhizhang Yuan ◽  
Yuyue Zhao ◽  
Xianfeng Li ◽  
Huamin Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
Treatment Method ◽  
Porous Membranes ◽  
Flow Battery ◽  
Solvent Treatment ◽  
Tunable Morphology

A simple and effective solvent treatment method was developed to prepare high-performance porous membranes with a tunable morphology for VFBs.

Advanced Porous Membranes with Tunable Morphology Regulated by Ionic Strength of Nonsolvent for Flow Battery

2019 ◽  
Vol 11 (27) ◽  
pp. 24107-24113 ◽  
Author(s):  
Lin Qiao ◽  
Huamin Zhang ◽  
Wenjing Lu ◽  
Qing Dai ◽  
Xianfeng Li
Keyword(s):  
Ionic Strength ◽  
Porous Membranes ◽  
Flow Battery ◽  
Tunable Morphology

scholarly journals Layered double hydroxide membrane with high hydroxide conductivity and ion selectivity for energy storage device

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jing Hu ◽  
Xiaomin Tang ◽  
Qing Dai ◽  
Zhiqiang Liu ◽  
Huamin Zhang ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Ion Selectivity ◽  
Storage Device ◽  
Hydroxyl Groups ◽  
Flow Battery ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Ions Transport ◽  
Double Hydroxides

AbstractMembranes with fast and selective ions transport are highly demanded for energy storage devices. Layered double hydroxides (LDHs), bearing uniform interlayer galleries and abundant hydroxyl groups covalently bonded within two-dimensional (2D) host layers, make them superb candidates for high-performance membranes. However, related research on LDHs for ions separation is quite rare, especially the deep-going study on ions transport behavior in LDHs. Here, we report a LDHs-based composite membrane with fast and selective ions transport for flow battery application. The hydroxide ions transport through LDHs via vehicular (standard diffusion) & Grotthuss (proton hopping) mechanisms is uncovered. The LDHs-based membrane enables an alkaline zinc-based flow battery to operate at 200 mA cm−2, along with an energy efficiency of 82.36% for 400 cycles. This study offers an in-depth understanding of ions transport in LDHs and further inspires their applications in other energy-related devices.

A high sensitivity wireless mass-loading surface acoustic wave DNA biosensor

2014 ◽  
Vol 28 (07) ◽  
pp. 1450056 ◽  
Author(s):  
Hua-Lin Cai ◽  
Yi Yang ◽  
Yi-Han Zhang ◽  
Chang-Jian Zhou ◽  
Cang-Ran Guo ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Dna Sequences ◽  
Biological Treatment ◽  
High Performance ◽  
Processing System ◽  
High Sensitivity ◽  
Treatment Method ◽  
Saw Sensor ◽  
Target Dna

In this paper, a surface acoustic wave (SAW) biosensor with gold delay area on LiNbO 3 substrate detecting DNA sequences is proposed. By well-designed device parameters of the SAW sensor, it achieves a high performance for highly sensitive detection of target DNA. In addition, an effective biological treatment method for DNA immobilization and abundant experimental verification of the sensing effect have made it a reliable device in DNA detection. The loading mass of the probe and target DNA sequences is obtained from the frequency shifts, which are big enough in this work due to an effective biological treatment. The experimental results show that the biosensor has a high sensitivity of 1.2 pg/ml/Hz and high selectivity characteristic is also verified by the few responses of other substances. In combination with wireless transceiver, we develop a wireless receiving and processing system that can directly display the detection results.

scholarly journals Layered double hydroxide membrane with high hydroxide conductivity and ion selectivity for energy storage device

2020 ◽  
Author(s):  
Jing Hu ◽  
Xiaomin Tang ◽  
Qing Dai ◽  
Zhiqiang Liu ◽  
Huamin Zhang ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Ion Selectivity ◽  
Storage Device ◽  
Hydroxyl Groups ◽  
Flow Battery ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Ions Transport ◽  
Double Hydroxides

Abstract Membranes with fast and selective ions transport are highly demanded for energy storage devices. Layered double hydroxides (LDHs), bearing uniform interlayer galleries and abundant hydroxyl groups covalently bonded within two-dimensional (2D) host layers, make them superb candidates for high-performance membranes. However, related research on LDHs for ions separation is quite rare, especially the deep-going study on ions transport behavior in LDHs. Here, we report a LDHs-based composite membrane with fast and selective ions transport for flow battery application. The hydroxide ions transport through LDHs via vehicular (standard diffusion) & Grotthuss (proton hopping) mechanisms is uncovered. The LDHs-based membrane enables an alkaline zinc-based flow battery to operate at 200 mA cm− 2, along with an energy efficiency of 82.36% for 400 cycles, which is among the highest efficiencies for zinc-based flow batteries. This study offers an in-depth understanding of ions transport in LDHs and further inspires their applications in other energy-related devices.

Solvent treatment: the formation mechanism of advanced porous membranes for flow batteries

2018 ◽  
Vol 6 (32) ◽  
pp. 15569-15576 ◽  
Author(s):  
Wenjing Lu ◽  
Lin Qiao ◽  
Qing Dai ◽  
Huamin Zhang ◽  
Xianfeng Li
Keyword(s):  
Formation Mechanism ◽  
Process Parameters ◽  
Porous Membranes ◽  
Solvent Treatment ◽  
Flow Batteries

Advanced porous membranes for flow batteries were successfully prepared by the adjustment of process parameters during solvent treatment.

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