Self-Actuation of Liquid Metal via Redox Reaction

Gough, Ryan C.; Dang, Jonathan H.; Moorefield, Matthew R.; Zhang, George B.; Hihara, Lloyd H.; Shiroma, Wayne A.; Ohta, Aaron T.

doi:10.1021/acsami.5b09466

Cited by 89 publications

(69 citation statements)

References 20 publications

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“…8. The two films of CNTs (with and without dye) tested in dry room showed a sloping voltage plateau starting at 2.9 V independent of the presence of the dye (with or without light exposure); by contrast no such plateau was observed in the case of the film tested in O 2 -free Ar-glove box46 indicating that the voltage plateau was associated with the reduction of O 2 (refs 47, 48, 49). Carbon nanotubes are known to activate the reduction of O 2 as suggested by Zhang50, Lim51 and Zelang52, but ruthenium53 in the diluted N719 dye plays a role only when LFP is present.…”

Section: Resultsmentioning

confidence: 97%

Light-assisted delithiation of lithium iron phosphate nanocrystals towards photo-rechargeable lithium ion batteries

et al. 2017

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Recently, intensive efforts are dedicated to convert and store the solar energy in a single device. Herein, dye-synthesized solar cell technology is combined with lithium-ion materials to investigate light-assisted battery charging. In particular we report the direct photo-oxidation of lithium iron phosphate nanocrystals in the presence of a dye as a hybrid photo-cathode in a two-electrode system, with lithium metal as anode and lithium hexafluorophosphate in carbonate-based electrolyte; a configuration corresponding to lithium ion battery charging. Dye-sensitization generates electron–hole pairs with the holes aiding the delithiation of lithium iron phosphate at the cathode and electrons utilized in the formation of a solid electrolyte interface at the anode via oxygen reduction. Lithium iron phosphate acts effectively as a reversible redox agent for the regeneration of the dye. Our findings provide possibilities in advancing the design principles for photo-rechargeable lithium ion batteries.

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Section: Resultsmentioning

confidence: 97%

Light-assisted delithiation of lithium iron phosphate nanocrystals towards photo-rechargeable lithium ion batteries

et al. 2017

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Section: Reconfigurablementioning

confidence: 99%

“…It can also locally induce withdrawal of the liquid metal from a thin film of the metal . Combined, the ability to decrease and increase the interfacial tension with modest voltages provides a method to pump and manipulate the shape of liquid metal (Figure i) . This technique has the drawback that it requires electrolyte.…”

Section: Reconfigurablementioning

confidence: 99%

Stretchable and Soft Electronics using Liquid Metals

2017

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can be patterned into non-spherical shapes using both conventional and unconventional methods to form highly conductive, durable, and stretchable wires, interconnects, and antennas. The deformation limits of conductors formed with liquid metal are only limited -in principle -by the mechanical properties of the encasing material. The geometrical changes to the metal during deformation can be harnessed to form softer-than-skin sensors of strain and touch. Liquid metals can also be utilized as active components in memory devices, diodes, electrodes, and capacitors built entirely from soft materials. In addition, liquid metals can form circuits that are self-healing and shape-reconfigurable.There are many exciting and promising applications that harness the unique properties of liquid metals. Recent advances, opportunities, and challenges with liquid metals based on gallium within the context of stretchable and soft electronics are discussed here.

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“…Self‐Propelled LM Robots : The self‐propelled LM robots generally utilize the asymmetric distribution of ions, asymmetric generation of bubbles and Marangoni flow to generate net traction force on LM . The fuel can be integrated in the LM robots or generated from the surrounding solutions.…”

Section: Applications Of Liquid Metal–based Microfluidic Systemsmentioning

confidence: 99%

Liquid Metal–Based Soft Microfluidics

Zhu

Wang

Handschuh‐Wang

et al. 2019

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Motivated by the increasing demand of wearable and soft electronics, liquid metal (LM)‐based microfluidics has been subjected to tremendous development in the past decade, especially in electronics, robotics, and related fields, due to the unique advantages of LMs that combines the conductivity and deformability all‐in‐one. LMs can be integrated as the core component into microfluidic systems in the form of either droplets/marbles or composites embedded by polymer materials with isotropic and anisotropic distribution. The LM microfluidic systems are found to have broad applications in deformable antennas, soft diodes, biomedical sensing chips, transient circuits, mechanically adaptive materials, etc. Herein, the recent progress in the development of LM‐based microfluidics and their potential applications are summarized. The current challenges toward industrial applications and future research orientation of this field are also summarized and discussed.

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Self-Actuation of Liquid Metal via Redox Reaction

Cited by 89 publications

References 20 publications

Light-assisted delithiation of lithium iron phosphate nanocrystals towards photo-rechargeable lithium ion batteries

Light-assisted delithiation of lithium iron phosphate nanocrystals towards photo-rechargeable lithium ion batteries

Stretchable and Soft Electronics using Liquid Metals

Liquid Metal–Based Soft Microfluidics

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