Recently, the recent researches on graphene oxide-based all-solid-state supercapacitors conducted by school of materials science and engineering of NPU was published inAdvanced Functional Materials(IF=12.124), a prestigious journal in materials science. The title ofthefull paper is "Capacitive Enhancement Mechanisms and Design Principles of High-Performance Graphene Oxide-Based All-Solid-State Supercapacitors" (DOI: 10.1002/adfm.201706721，https://doi.org/10.1002/adfm.201706721). The PhD candidate Yong Gao is the first author and Prof. Zhenhai Xia is the corresponding author, both from School of Materials Science and Engineering. Prof. Bingqing Wei from Center for Nano Energy Materials, School of Materials Science and Engineering of NPU and PhD candidate Yiyang Wan from School of Materials Science and Engineering of University of North Texas in USA are co-workers.
All-solid-state supercapacitors, as a fast and reliable energy storage device, are capable of being integrated on a single chip in various geometry shapes for the use of future smart wearable electronics. However, the energy density is the bottle neck of the capacitors, which is a long-standing problems. In this work, through the molecular dynamics (MD) simulations and theoretical analysis of graphene oxide (GO)–based supercapacitors, three significant outcomes have been made:
i) Design principles for high energy density was established for GO-based supercapacitors.ii) A novel GO supercapacitor was designed, and its energy density was the highest among conventional supercapacitors with liquid or solid electrolytes.iii) Two new types of high-performance GO/rGO multilayered capacitors were proposed.
The results of this work not only provide a new approach and guiding principles for design and process of high-performance all-solid-state supercapacitors based on graphene and (reduced) graphene oxide, but also will be an inspiring contribution to the future research in supercapacitors and other energy conversion and storage technologies.
Firmly established as a top-tier materials science journal,Advanced Functional Materials(http://www.afm-journal.de)reports breakthrough research in all aspects of materials science, including nanotechnology, chemistry, physics, and biology every week. And it is known for its rapid and fair peer review, quality content, and high impact (2017 Journal Citation Reports: 12.124), making it the first choice of the international materials science community.