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Supercapacitors - Co-doped TiO2

(Performed by Yongteng Qian)

(Courtesy of Mr. Yongteng Qian at NDnMP)

Project description

(Microporous and Mesoporous MAterials, Volume 273, pp. 148-155, 1 Jan, (2019))
✔ Highly porous nanostructures having large specific surface areas are very desirable for electrochemical supercapacitors to achieve a large energy storage capacity.


Main findings

(Microporous and Mesoporous MAterials, Volume 273, pp. 148-155, 1 Jan, (2019))
✔ We found that porous Co-doped TiO2 has large specific surface area.


What was found?


(Microporous and Mesoporous Materials, Volume 273, pp. 148-155, 1 Jan, (2019))
✔ The CV curves of the porous 7% Co-doped TiO2 nanostructures-based electrodes acquired at various scan rates in the range of 5-100mVs-1 at potentials ranging from 0 to 0.5V.
(Microporous and Mesoporous MAterials, Volume 273, pp. 148-155, 1 Jan, (2019)))
✔ The GCD curves of all the porous 7% Co-doped TiO2 nanostructures-based electrodes obtained in the 3.0M KOH aqueous electrolyte at five different current densities of 0.5, 1, 2, 3 and 5 Ag-1.
(Microporous and Mesoporous MAterials, Volume 273, pp. 148-155, 1 Jan, (2019))
✔ The specific capacitance of the undoped, 1, 3, 5, 7 and 9% Co-doped TiO2 electrodes were calculated to be 93.2, 151.6, 198.1, 223.5, 352 and 246.9 Fg-1 at a current density of 0.5 Ag-1, respectively.





Flexible, Stretchable and Wearable Nanogenerators Integrated with Supercapacitors

(Performed by Aamir Rasheed)

Project Description

(Courtesy of Mr. Byeoksong Lee at NDnMP)
✔ Mechanical energy harvesting through piezoelectricity and triboelectricity.
✔ Self-powered technology, Nanogenerators integrated with supercapacitors.
✔ Wearable textile based devices.
✔ Hybridization of Nanogenerators for harvesting multi-type energies.
✔ A rectification-free flexible self-charged power cell.
✔ ZnO nanoflakes as a novel piezoelectric material.
✔ Solid state supercapacitor-based mechanically stable integrated device.
✔ Piezoelectric / Ferroelectric Materials Synthesis and Characterization.


Main findings

(Courtesy of Mr. Byeoksong Lee at NDnMP)
✔ A rectification-free flexible self-charged power cell.
✔ ZnO nanoflakes as a novel piezoelectric material.
✔ Solid state supercapacitor-based mechanically stable integrated device.
✔ Piezoelectric / Ferroelectric Materials Synthesis and Characterization.


Why? The reasons for the research

(Courtesy of Mr. Aamir Rasheed at NDnMP)
✔ To power up smart electronics.
✔ A step for the development of effective power source for sensor networks.
✔ Flexible self-charged devcies to harvest human mechanical motions.
✔ To achieve good mechanical stability and storage properties using graphene and MnO2 nanowires.
✔ To enhance the Beta phase in PVDF for better piezoelectricity.
✔ To achieve the higher output performance using 10nm thin ZnO nanoflakes.


What was found?

(Courtesy of Mr. Aamir Rasheed at NDnMP)
✔ Piezoelectric response of piezoelectric films.

✔ Analysis and comparison of peizoelectricity in PVDF, PVDF-rGO, PVDF-ZnO and PVDF-rGO-ZnO films.

✔ Maximum Output voltage, Output current and power density of 44V, 1000nA and 193.6μW/cm2 was obtained from our devices, respectively.

✔ Good storage properties.

✔ Better mechanical stability of graphene based solid-state supercapacitor.

✔ Self-charging behavior of integrated and non-integrated device.


Why is the project important?

✔ Wearable devices have good compatibility with different human body parts.
✔ Textile based flexible devices can work under wide range of frequencies of available mechanical motions.
✔ Cheap, biocompatible, flexible and easily deformable devices can be made using lightweight textile based materials.
✔ Development of self-charged devices by integrating energy conversion and storage processes is a key step for the commercialization of nanogenerators.





Flexible wearable Nanogenerator

Project description

✔ Harvesting ambient energy can change the world to do not need to charge the battery

✔ The device which is embedded nanogenerator can be working without charge

✔ Flexible nanogenerator can realize the device that do not need external power source.

Main findings

✔ Flexible Nanogenerator -Te nanoflake / PDMS /Gold coating textile Piezoelectric nanogenerator

✔ Triboelectric & Piezoelectric hybrid Nanogenerator – Au / PDMS / ZnO nanoflake nanogenerator

✔ Generation & storege hybrid Nanogenerator – PVDF-rGO-ZnO / MnO2-rGO nanogenerator

Why? The reasons for the research

✔ To realize high output voltage, current, power for self charged nanogenerator

✔ To realize high flexible nanogenerator based on textile substrate for wearable device

✔ To realize generation , storage hybrid nanogenerator for embedded device

Why is the project important


✔ To research flexible nanogenerator can stop our environmental issues

✔ To research flexible nanogenerator can stop our social issue about tax

✔ To research flexible nanogenerator can emerge self charged wearble devices

✔ To research flexible nanogenerator can emerge nanorobot which is harvesting of ambient energy