Graphene-like two-dimensional
carbon nanosheets with properly modulated
compositions and porosity are of particular importance for robust
capacitance harvesting. Nevertheless, the large-scale and cost-effective
production of such nanostructures still remains a great challenge.
Herein, we innovatively produce nitrogen-doped porous carbon nanosheets
using pine nut shells, an abundant biomass waste, as the precursor,
under the synergetic effect of KOH and melamine during the activation
process. The sole activation of the precursors with KOH can produce
only traditional activated carbon particles of several micrometers,
while interestingly, the extra introduction of melamine results in
nitrogen-doped porous carbon nanosheets possessing high tunability.
By construction of a two-electrode configuration, the supercapacitors
with optimal nanosheets as the electrode materials can deliver a superior
specific capacitance of 324 F g –1 at 0.05 A g–1, outstanding rate capability of 258 F g–1 at 20 A g–1, and extraordinary cyclic stability
of 94.6% after 10 000 cycles at 2 A g–1 in
an aqueous electrolyte of 6 M KOH. Such a facile strategy proposed
here may contribute to new possibilities of synthesizing graphene-like
porous carbon nanosheets in a sustainable manner for energy-related
applications.
These data reveal the pathogenic significance of CD8+ T cells in the development and progression of SS in the salivary glands. Treatment directed against CD8+ T cells may be a rational therapy for the management of SS in human subjects.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.