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  1. No Access

    Article

    Effect of calcination temperature on electrochemical performance of niobium oxides/carbon composites

    Orthorhombic niobium pentoxide (T-Nb2O5) possesses an intercalation pseudocapacitive behavior, which is a promising candidate of high-rate anodes for Li-ion capacitors. However, its low electric conductivity hind...

    Haojie Fei, Natalia Kazantseva, Viera Pechancova… in Journal of Materials Science (2022)

  2. Article

    Open Access

    Electrochemical performance of composite electrodes based on rGO, Mn/Cu metal–organic frameworks, and PANI

    Benzendicarboxylic acid (BDC)-based metal–organic frameworks (MOFs) have been widely utilized in various applications, including supercapacitor electrode materials. Manganese and copper have solid diamond fram...

    Quoc Bao Le, Thanh-Huong Nguyen, Haojie Fei, Constantin Bubulinca… in Scientific Reports (2022)

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  3. No Access

    Article

    Effect of PANI and PPy on Electrochemical Performance of rGO/ZnMn2O4 Aerogels as Electrodes for Supercapacitors

    Conductive polymers, such as polyaniline (PANI) and polypyrrole (PPy), are widely used in the design of supercapacitors because of their high pseudo-capacitive performance as well as facile synthesis and low c...

    Quoc Bao Le, Elif Vargun, Haojie Fei, Qilin Cheng… in Journal of Electronic Materials (2020)

  4. No Access

    Article

    Polyaniline/reduced graphene oxide hydrogel film with attached graphite current collector for flexible supercapacitors

    Reduced graphene oxide (RGO) hydrogel films possess a low specific capacitance and have no flexible current collectors, which limit their use in flexible supercapacitors. To solve these problems, a novel polya...

    Haojie Fei, Nabanita Saha… in Journal of Materials Science: Materials in… (2018)