A durable MXene-based zinc ion hybrid supercapacitor with sulfated polysaccharide reinforced hydrogel/electrolyte

Abstract

Zn-ion hybrid supercapacitors (ZHSCs) emerge as promising equipment for energy storage applications due to their eco-efficiency, abundant natural resource, and high safety. However, the development of ZHSCs remains at the...

Fabricating flexible conductive structures by printing techniques and printable conductive materials

“…At present, carbon and graphene-like nanomaterials have been widely used for fabricating FCS with the printing technique, including graphene, carbon nanotube, carbon black, and two-dimensional transition metal carbides/carbonitrides or nitrides (MXenes). 113,114 3.2.1 Graphene. Graphene is a special 2D conductive carbon material and is composed of a hexagonal honeycomb structure with periodically stacked sp 2 hybrid carbon atoms.…”

“…At present, carbon and graphene-like nanomaterials have been widely used for fabricating FCS with the printing technique, including graphene, carbon nanotube, carbon black, and two-dimensional transition metal carbides/carbonitrides or nitrides (MXenes). 113,114…”

Nitrogen-doped hollow carbon nanoboxes in zwitterionic polymer hydrogel electrolyte for superior quasi-solid-state zinc-ion hybrid supercapacitors

“…The superior anti-self-discharge ability of our quasi-solid-state ZHSC manifests excellent stability of the prepared P(SBMA-co-AA)/Zn(CF 3 SO 3 ) 2 hydrogel electrolyte to suppress side reactions. 56,57 Of note is that the aqueous Zn//APZC cell can deliver a high energy density of 89.8 W h kg À1 at a power density of 204.3 W kg À1 (0.25 A g À1 ) and even retains a considerable energy density of 32.2 W h kg À1 at a power density of 14 482.7 W kg À1 (20.0 A g À1 ), as shown in Ragone plots (Fig. 6f).…”

Tough and self‐healable carrageenan‐based double network microgels enhanced physical hydrogels for strain sensor

“…Inspired by aforementioned work, herein, we reported a new type of fully P‐DN gels, that is, K + ions crosslinked κ ‐carrageenan (K + C) microgel composite HPAAm gels or K + C‐MG/HPAAm gels, in which HPAAm gel was physically crosslinked by hydrophobic interactions as well as topologically crosslinked by P‐DN microgels. κ ‐carrageenan (KC) is an anionic polysaccharide with thermo‐reversible sol–gel transition like agar and gelatin, which can be ionically crosslinked by K + ions 52–63 . In this work, K + C‐MG/HPAAm gels were prepared by a one‐pot method, and K + ions were added before the dissolution of κ ‐carrageenan, leading to a P‐DN microgel composite HPAAm gel.…”

“…κ-carrageenan (KC) is an anionic polysaccharide with thermo-reversible sol-gel transition like agar and gelatin, which can be ionically crosslinked by K + ions. [52][53][54][55][56][57][58][59][60][61][62][63] In this work, K + C-MG/HPAAm gels were prepared by a one-pot method, and K + ions were added before the dissolution of κ-carrageenan, leading to a P-DN microgel composite HPAAm gel. Therefore, K + C-MG/HPAAm gels were similar to microgels enhanced (MR) hydrogels reported by Gong's group, 64,65 which is totally different from previously reported κ-carrageenan-based fully P-DN gels.…”