Graphene nanoribbons on three-dimensional carbon nanomaterials for high-performance flexible zinc-ion hybrid supercapacitors
Source abstract
Abstract
The rational design of electrodes is crucial for the performance and practical applications of flexible zinc-ion hybrid supercapacitors (ZIHS). In this paper, we have developed an easy strategy to design electrodes based on current collectors with vertically aligned nanohole arrays on their surfaces. Zinc nanosheet arrays were deposited on a porous aluminum oxide/aluminum (AAO) film to form a Zn@AAO anode. Graphene nanoribbons (GR) unzipped for carbon nanotubes were coated on a unique three-dimensional carbon pre-coated AAO (CAAO) film to form a GR@CAAO composite cathode. After assembling with ZnSO 4/gelatin gel electrolyte, a quasi-solid Zn@AAO//GR@CAAO ZIHS with a potential of 1.6 V was obtained. The as-prepared ZIHS exhibits an areal capacitance of 156 mF cm −2 at 0.25 mA cm −2 and a high energy density of 56 μW h cm −2 at 0.202 mW cm −2, an excellent flexibility as well as long cycle life.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Supercapacitor Materials and Fabrication · Advancements in Battery Materials · Advanced battery technologies research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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