Facile Synthesis of NiCo2S4/rGO Composites in a Micro-Impinging Stream Reactor for Energy Storage

Using a process-enhanced micro-impinging stream reactor (MISR) and a co-precipitation route, NiCo2S4 and NiCo2S4/rGO electrode materials were successfully prepared, respectively. Owing to its excellent micromixing performance, the MISR-prepared NiCo2S4/rGO composites had a smaller size and less aggl...

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Published inApplied sciences Vol. 12; no. 6; p. 2882
Main Authors Zhang, Jiawei, Chen, Xiguan, Liu, Chunyu, Wen, Lixiong
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.03.2022
Subjects
Aqueous solutions
Carbon
Cobalt
Composite materials
Cycles
Electrode materials
Electrodes
Energy storage
Graphene
hybrid supercapacitor
micro-impinging stream reactor
Micromixing
NiCo2S4 composite
Nitrates
Phase transitions
Reactors
Specific capacity
Stability
Stainless steel
Beijing China
China
Japan
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Summary:Using a process-enhanced micro-impinging stream reactor (MISR) and a co-precipitation route, NiCo2S4 and NiCo2S4/rGO electrode materials were successfully prepared, respectively. Owing to its excellent micromixing performance, the MISR-prepared NiCo2S4/rGO composites had a smaller size and less agglomeration than the same composites prepared in a traditional stirred reactor (STR). The specific capacity of the MISR-prepared composites was as high as 198.0 mAh g−1 under the current density of 1 A g−1. The cycling stability of the composites also improved significantly after being modified with reduced graphene oxide (rGO), and they displayed a fine cycling stability, which maintained a retention rate of 83.6% after 1000 cycles of charging and discharging.
ISSN:2076-3417
2076-3417
DOI:10.3390/app12062882