Facile Synthesis of Ultrafine and Highly Dispersible MnO2 Nanoparticles for Energy Storage in Supercapacitors
Source abstract
Abstract
Abstract Manganese dioxide (MnO2) has been extensively investigated as an electrode material for supercapacitors because of its high theoretical capacitance, great abundance, and low toxicity. To obtain satisfactory capacitance performance, in recent years, many efforts have been dedicated to the fabrication of MnO2 nanoparticles that offer a larger specific surface area and an escalated chemical activity. Beyond them, the ideal dispersibility of nanoparticles in a liquid medium is also of vital importance when processing those powdery materials into slurry ones for some particular uses, such as editable and ink‐printing supercapacitor devices. In this study, the as‐synthesized ultrafine MnO2 nanoparticles having excellent dispersibility in water can be prepared via a facile one‐step hydrothermal route, with a uniform size in diameter of 200 nm exhibiting a large specific surface area of ~389.7 m2 g−1, and a high specific capacitance of 135.7 F g−1 at 5 mV s−1.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Supercapacitor Materials and Fabrication · Advancements in Battery Materials · MXene and MAX Phase Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Advanced Institute for Soft Matter Science and Technology South China University of Technology Guangzhou 510640 China
Department of Chemical Engineering Monash University Clayton VIC-3800 Australia
Guangdong Ruipeng Material & Science Co., Ltd. 528000 Foshan China
Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health Institute of Environmental Health and Pollution Control Guangdong University of Technology Guangzhou 510006 China
School of Mines China University of Mining and Technology Xuzhou 221116 China
Institute for Smart Materials & Engineering University of Jinan 250022 Jinan China
Funding
Australian Research Council
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