Freestanding carbon‐based hybrids, specifically carbon nanotube@ 3D graphene (CNTs@
3DG) hybrid, are of great interest in electrochemical energy storage. However, the large …

Lightweight flexible energy storage devices have aroused great attention due to the
remarkably increasing demand for ultrathin and portable electronic devices. As typical new …

Graphene-based supercapacitors and related flexible devices have attracted great attention
because of the increasing demands in the energy storage. As promising three-dimensional …

Achieving high energy density while retaining high power density is difficult in electrical
double-layer capacitors and in pseudocapacitors considering the origin of different charge …

Graphene nanosheets, typical two-dimensional sp 2 hybridized carbon materials, are
gaining increasingly attention in many fields due to their excellent electrical and large …

In this work, we report a fast and cost-effective cobalt catalyzed gasification strategy to obtain
defect-introduced graphene sheets (DGNs) with hole structure. Compared with the pristine …

Using graphene oxide and a cobalt salt as precursor, a three‐dimensional graphene
aerogel with embedded Co3O4 nanoparticles (3D Co3O4–RGO aerogel) is prepared by …

The biomass-derived carbon materials as ideal low-cost raw materials have recently
presented great application potential in energy storage. However, the amorphous active …

High energy density and power density within a limited volume of flexible solid‐state
supercapacitors are highly desirable for practical applications. Here, free‐standing high …

In order to achieve high energy densities, an asymmetric all-solid-state supercapacitor is
developed by synthesizing a novel composite of cobalt carbonate hydroxide (CCH) …