Green synthesis of cellulose/graphene oxide/ZIF8 derived highly conductivity integrated film electrode for supercapacitor

Li, Jie; Sun, Ying; Kang, Weiwei; Wang, Pengna; Zhang, Huijun; Zhang, Xueqin; Yang, Hong; Lin, Baoping

doi:10.1016/j.carbon.2021.09.035

Cited by 21 publications

(1 citation statement)

References 57 publications

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“…Li et al developed a controllable hierarchically porous carbon nanofiber (Fe-NC@CBC) by in situ growth of controllable Fe-based organic frameworks on bacterial cellulose, which exhibits efficient electrocatalytic performance surpassing that of commercial Pt/C in microbial fuel cells [ 19 ]. Lin group prepared a cellulose/graphene oxide/ZIF8-derived highly conductivity integrated film electrode for a supercapacitor; the goal product carbonized-CNFs/GO/ZIF8 (CCGZ) exhibits high conductivity and the all-solid-state device achieves a desirable energy density [ 20 ]. Li et al designed a cellulose nanofibers@zeolitic imidazolate framework-derived mesoporous carbon-supported nanoscale CoFe 2O4 /CoFe hybrid composition as a trifunctional electrocatalyst for Zn-air battery, which presents excellent power density and outstanding cycling stability due to the effective exposure nanoscale-dispersed active sites and abundant mesoporous structure [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

ZIF67-ZIF8@MFC-Derived Co-Zn/NC Interconnected Frameworks Combined with Perfluorosulfonic Acid Polymer as a Highly Efficient and Stable Composite Electrocatalyst for Oxygen Reduction Reactions

Meng,

Song,

Zhang

2024

Polymers

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The development of precious metal-free (M-N-C) catalysts for the oxygen reduction reaction (ORR) is considered crucial for reducing fuel cell costs. Herein, Co-Zn/NC interconnected frameworks with uniformly dispersed Co nanoparticles and graphitic carbon are designed and successfully synthesized through the in situ growth of zeolitic imidazolate frameworks (ZIF67 and ZIF8) along with biomass nano-microfibrillar cellulose (MFC), followed by pyrolysis. A Co-Zn/NC composite is prepared by combining Co-Zn/NC with a perfluorosulfonic acid polymer. The Co-Zn/NC composite catalyst exhibits excellent ORR catalytic activity (E0 = 0.974 V vs. RHE, E1/2 = 0.858 V vs. RHE) and good long-term durability, with 90% current retention after 10000s, surpassing that of commercial Pt/C in alkaline media. The hierarchical porous structure, coupled with the uniform distribution of Co nanoparticles and nitrogen doping, contributes to superior electrocatalytic performance, while the interconnected frameworks and graphitic carbon ensure good stability. Additionally, the Co-Zn/NC composite demonstrates promising applications in acidic media. This strategy offers significant guidance to develop advanced non-precious metal carbon-based catalysts for highly efficient and stable ORR.

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Section: Introductionmentioning

confidence: 99%