Effective CO2 capture by in-situ nitrogen-doped nanoporous carbon derived from waste antibiotic fermentation residues

Liu, Peiliang; Qin, Songbing; Wang, Jieni; Zhang, Shuqin; Tian, Yaping; Zhang, Fangfang; Liu, Chenxiao; Cao, Leichang; Zhou, Yanmei; Wang, Lin; Wei, Zhangdong; Zhang, Shicheng

doi:10.1016/j.envpol.2023.121972

Cited by 10 publications

(2 citation statements)

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“…Consequently, the steps for nitrogen doping are eliminated, making the preparation process more convenient and cost-effective. Additionally, the in situ nitrogen doping helps minimize nitrogen loss, leading to enhanced nitrogen retention in the material [24]. Moreover, YPAC-1 exhibited outstanding specific capacitance properties compared to porous Electrochemical tests such as CV and GCD were performed (Figure 6a,b) to investigate the electrochemical performance of YPAC-1 as a supercapacitor electrode material in the three-electrode system.…”

Section: Electrochemical Performancementioning

confidence: 99%

“…Compared with additional nitrogen sources such as melamine, urea, and ammonia [ 20 , 21 , 22 ], choosing nitrogen-rich biomass waste as a porous carbon precursor is more beneficial to the green environment and does not cause secondary pollution to the environment [ 23 ]. Furthermore, in situ nitrogen doping is more stable compared to introducing additional nitrogen sources and can effectively reduce the loss of nitrogen content during the doping process [ 24 ]. In industrial production, large quantities of industrial-grade eggs containing special additives are used to extract purely natural chemicals such as lecithin and egg whites for use in antibacterial products and cosmetics [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

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In Situ N, O Co-Doped Nanoporous Carbon Derived from Mixed Egg and Rice Waste as Green Supercapacitor

Qin,

Liu,

Wang

et al. 2023

Molecules

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The conversion of nitrogen–oxygen-rich biomass wastes into heteroatomic co-doped nanostructured carbons used as energy storage materials has received widespread attention. In this study, an in situ nitrogen–oxygen co-doped porous carbon was prepared for supercapacitor applications via a two-step method of pre-carbonization and pyrolytic activation using mixed egg yolk/white and rice waste. The optimal sample (YPAC-1) was found to have a 3D honeycomb structure composed of abundant micropores and mesopores with a high specific surface area of 1572.1 m2 g−1, which provided abundant storage space and a wide transport path for electrolyte ions. Notably, the specific capacitance of the constructed three-electrode system was as high as 446.22 F g−1 at a current density of 1 A g−1 and remained above 50% at 10 A g−1. The capacitance retention was 82.26% after up to 10,000 cycles. The symmetrical capacitor based on YPAC-1 with a two-electrode structure exhibited an energy density of 8.3 Wh kg−1 when the power density was 136 W kg−1. These results indicate that porous carbon materials prepared from mixed protein and carbohydrate waste have promising applications in the field of supercapacitors.

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Section: Electrochemical Performancementioning

confidence: 99%