Waste polyethylene terephthalate plastic derived Zr-MOF for high performance supercapacitor applications

M. Al-Enizi, Abdullah; Nafady, Ayman; Alanazi, Nouf B.; Abdulhameed, Meera Moydeen; Shaikh, Shoyebmohamad F.

doi:10.1016/j.chemosphere.2023.141080

“…With the escalating demand for sustainable energy solutions, continued exploration and innovation in these domains are imperative for the development of next-generation energy storage technologies. Studies have explored the utilization of both biodegradable 18–21 and non-biodegradable 22,23 waste materials in energy storage applications. The investigation of supercapacitor active materials from non-biodegradable plastic waste has been driven by the urgent need for sustainable energy solutions.…”

Section: Introductionmentioning

confidence: 99%

GQD-PAN-based high-performance supercapacitor: an approach towards wealth from waste

Kumar,

Vashishth,

Rani

et al. 2024

RSC Sustain.

2

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Ion Exchange‐Mediated 3D Cross‐Linked ZIF‐L Superstructure for Flexible Electrochemical Energy Storage

Ding,

Liu,

Xie

et al. 2024

Angewandte Chemie

0

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Metal‐organic frameworks (MOFs) are considered as a promising candidate for advancing energy storage owing to their intrinsic multi‐channel architecture, high theoretical capacity, and precise adjustability. However, the low conductivity and poor structural stability lead to unsatisfactory rate and cycling performance, greatly hindering their practical application. Herein, we propose a sea urchin‐like Co‐ZIF‐L superstructure using molecular template to induce self‐assembly followed by ion exchange method, which shows improved conductivity, successive channels, and high stability. The ion exchange can gradually etch the superstructure, leading to the reconstruction of Co‐ZIF‐L with three‐dimensional (3D) cross‐linked ultrathin porous nanosheets. Moreover, the precise control of Co to Ni ratios can construct effective micro‐electric field and synergistically enhance the rapid transfer of electrons and electrolyte ions, improving the conductivity and stability of CoNi‐ZIF‐L. The Co6.53Ni‐ZIF‐L electrode exhibits a high specific capacity (602 F g−1 at 1 A g−1) and long cycling stability (95.3% retention after 4,000 cycles at 5 A g−1). The Co6.53Ni‐ZIF‐L//AC asymmetric flexible supercapacitor employing gel electrolyte also exhibits excellent cycling stability (93.3% retention after 4000 cycles at 5 A g−1). This discovery provides valuable insights for electrode material selection and energy storage efficiency improvement.

show abstract

Ion Exchange‐Mediated 3D Cross‐Linked ZIF‐L Superstructure for Flexible Electrochemical Energy Storage

Ding,

Liu,

Xie

et al. 2024

Angew Chem Int Ed

0

View full text Add to dashboard Cite

Metal‐organic frameworks (MOFs) are considered as a promising candidate for advancing energy storage owing to their intrinsic multi‐channel architecture, high theoretical capacity, and precise adjustability. However, the low conductivity and poor structural stability lead to unsatisfactory rate and cycling performance, greatly hindering their practical application. Herein, we propose a sea urchin‐like Co‐ZIF‐L superstructure using molecular template to induce self‐assembly followed by ion exchange method, which shows improved conductivity, successive channels, and high stability. The ion exchange can gradually etch the superstructure, leading to the reconstruction of Co‐ZIF‐L with three‐dimensional (3D) cross‐linked ultrathin porous nanosheets. Moreover, the precise control of Co to Ni ratios can construct effective micro‐electric field and synergistically enhance the rapid transfer of electrons and electrolyte ions, improving the conductivity and stability of CoNi‐ZIF‐L. The Co6.53Ni‐ZIF‐L electrode exhibits a high specific capacity (602 F g−1 at 1 A g−1) and long cycling stability (95.3% retention after 4,000 cycles at 5 A g−1). The Co6.53Ni‐ZIF‐L//AC asymmetric flexible supercapacitor employing gel electrolyte also exhibits excellent cycling stability (93.3% retention after 4000 cycles at 5 A g−1). This discovery provides valuable insights for electrode material selection and energy storage efficiency improvement.

show abstract

Waste polyethylene terephthalate plastic derived Zr-MOF for high performance supercapacitor applications

Cited by 5 publications

References 42 publications

GQD-PAN-based high-performance supercapacitor: an approach towards wealth from waste

GQD-PAN-based high-performance supercapacitor: an approach towards wealth from waste

Ion Exchange‐Mediated 3D Cross‐Linked ZIF‐L Superstructure for Flexible Electrochemical Energy Storage

Ion Exchange‐Mediated 3D Cross‐Linked ZIF‐L Superstructure for Flexible Electrochemical Energy Storage

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