Laser-scribed Ru organometallic complex for the preparation of RuO2 micro-supercapacitor electrodes on flexible substrate

Brousse, Kévin; Nguyen, Son Truong; Gillet, Angélique; Pinaud, Sébastien; Tan, Reasmey P.; Meffre, Anca; Soulantica, Katerina; Chaudret, Bruno; Taberna, Pierre‐Louis; Respaud, Marc; Simon, Patrice

doi:10.1016/j.electacta.2018.05.198

Cited by 45 publications

(25 citation statements)

References 27 publications

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“…Meanwhile, the Ni mesh has also served to grow the CNT on their surface through CVD and MnO 2 flakes were deposited on the CNT forming a core and a shell going through PEG mixing via stirring the entire content heated and dried to form the composite. The XRD patterns show the (121) and (211) reflections index the mass loaded MnO 2, which is also seen from the comparative Raman spectra of carbon and the composite with this metal oxide. This material exhibited the specific capacitance in a three-electrode system about 1072 F g −1 at 1 A g −1 (Figure 14).…”

Section: (17 Of 41)supporting

confidence: 54%

“…While from the activity of the RuO 2 in the absence of carbon expressed a low current density at the scan rate of 100 mV s −1 denotes the role of carbon materials in increasing the conductivity, mechanical stability, and flexibility. [ 121 ] While the material RuO 2 @graphene prepared in the same synthesis method produced a high specific capacitance of 1139 F g −1 that also found its application in the direct writing of electrodes to build microsupercapacitors. [ 122 ] The vast difference between both this work reveals that the carbon material (GO) helped in the oxidation of RuCl 3 to RuO 2 during the reaction as analyzed from the TGA ( Figure ).…”

Section: Conventional Electrode Materialsmentioning

confidence: 99%

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Advances on Emerging Materials for Flexible Supercapacitors: Current Trends and Beyond

Benzigar

Dasireddy²,

Guan

et al. 2020

Adv Funct Materials

116

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The progressive size reduction of electronic components is experiencing bottlenecks in shrinking charge storage devices like batteries and supercapacitors, limiting their development into wearable and flexible zero-pollution technologies. The inherent long cycle life, rapid charge-discharge patterns, and power density of supercapacitors rank them superior over other energy storage devices. In the modern market of zero-pollution energy devices, currently the lightweight formula and shape adaptability are trending to meet the current requirement of wearables. Carbon nanomaterials have the potential to meet this demand, as they are the core of active electrode materials for supercapacitors and texturally tailored to demonstrate flexible and stretchable properties. With this perspective, the latest progress in novel materials from conventional carbons to recently developed and emerging nanomaterials toward lightweight stretchable active compounds for flexi-wearable supercapacitors is presented. In addition, the limitations and challenges in realizing wearable energy storage systems and integrating the future of nanomaterials for efficient wearable technology are provided. Moreover, future perspectives on economically viable materials for wearables are also discussed, which could motivate researchers to pursue fabrication of cheap and efficient flexible nanomaterials for energy storage and pave the way for enabling a widerange of material-based applications.

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Section: (17 Of 41)supporting

confidence: 54%

Section: Conventional Electrode Materialsmentioning

confidence: 99%

Advances on Emerging Materials for Flexible Supercapacitors: Current Trends and Beyond

Benzigar

Dasireddy²,

Guan

et al. 2020

Adv Funct Materials

116

View full text Add to dashboard Cite

show abstract

“…In addition, the carbon‐containing pyrolysis products and the reductive atmosphere generated further induce the partial reduction of RuO 2 into Ru (Figure ), in agreement with the reduction of Ru(+III) by CO in RuCl 3 /cellulose acetate films . Such a reduction has been previously reported for RuO 2 thin films prepared from laser‐writing of Ru(COD)(COT) …”

Section: Resultsmentioning

confidence: 89%

Facile and Scalable Preparation of Ruthenium Oxide‐Based Flexible Micro‐Supercapacitors

Brousse

Pinaud

Nguyen

et al. 2019

Advanced Energy Materials

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Tremendous efforts have been invested in the development of the internet of things during the past 10 years. Implantable sensors still need embedded miniaturized energy harvesting devices, since commercialized thin films and microbatteries do not provide sufficient power densities and suffer from limited lifetime. Therefore, micro‐supercapacitors are good candidates to store energy and deliver power pulses while providing non‐constant voltage output with time. However, multistep expensive protocols involving mask aligners and sophisticated cleanrooms are used to prepare these devices. Here, a simple and versatile laser‐writing procedure to integrate flexible micro‐supercapacitors and microbatteries on current‐collector‐free polyimide foils is reported, starting from commercial powders. Ruthenium oxide (RuO2)‐based micro‐supercapacitors are prepared by laser irradiation of a bilayered tetrachloroauric acid (HAuCl4 · 3H2O)–cellulose acetate/RuO2 film deposited by spin‐coating, which leads to adherent Au/RuO2 electrodes with a unique pillar morphology. The as‐prepared microdevices deliver 27 mF cm−2/540 F cm−3 in 1 m H2SO4 and retain 80% of the initial capacitance after 10 000 cycles. This simple process is applied to make carbon‐based micro‐supercapacitors, as well as metal oxide based pseudocapacitors and battery electrodes, thus offering a straightforward solution to prepare low‐cost flexible microdevices at a large scale.

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“…Designing in-plane MSCs by placing electrodes in an interdigitated pattern fully maximises the advantages of the electrode materials (Kyeremateng, Brousse, and Pech 2017;Zhang, Cao, et al 2019). To obtain patterned electrodes, various patterning techniques such as laser scribing, spray-masking and photolithography have been employed (Liu et al 2016;Brousse et al 2018;Kim, Kang, and Moon 2018). However, some accompanied limitations such as complicated processing exist in the large-scale production of MSCs.…”

Section: Introductionmentioning

confidence: 99%

3D printed hybrid-dimensional electrodes for flexible micro-supercapacitors with superior electrochemical behaviours

Tang

Tian

et al. 2020

Virtual and Physical Prototyping

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Laser-scribed Ru organometallic complex for the preparation of RuO2 micro-supercapacitor electrodes on flexible substrate

Cited by 45 publications

References 27 publications

Advances on Emerging Materials for Flexible Supercapacitors: Current Trends and Beyond

Advances on Emerging Materials for Flexible Supercapacitors: Current Trends and Beyond

Facile and Scalable Preparation of Ruthenium Oxide‐Based Flexible Micro‐Supercapacitors

3D printed hybrid-dimensional electrodes for flexible micro-supercapacitors with superior electrochemical behaviours

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