Energy storage properties of hydrothermally processed, nanostructured, porous CeO2 nanoparticles

Rare Earth‐Based Nanomaterials for Supercapacitors: Preparation, Structure Engineering and Application

“…Additionally, Khan et al. synthesized CeO 2 nanoparticles directly supported on carbon‐cloth via precipitation and hydrothermal method [31] …”

“…[104] The reasons for improved electrochemical performance are that the large-size pore provides active area, design of binder-free electrode improves the conductivity, and the Fe(CN) 6 3 + /Fe(CN) 6 4 + redox couple in K 3 [Fe(CN) 6 ] promotes the faradaic redox reaction by controlling morphology and designing porous nature of REOs to enhance its capacitance performance. There are the following examples: CeO 2 , [31,105,106] Y 2 O 3 , [36] and La 2 O 3 . [107] Compared with traditional transition metal oxides (NiO, Co 3 O 4 , NiFe 2 O 4 , etc.)…”

Recent advances in hydrothermal synthesis of facet-controlled CeO2-based nanomaterials

“…The representative syntheses of CeO 2 nanomaterials include precipitation, [16][17][18] sol-gel, [19][20][21] microemulsion, 22,23 sonochemical, 24,25 and hydrothermal [26][27][28] methods. The hydro-a School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China.…”

“…Due to the relatively slow hydrothermal process, high-quality CeO 2 -based nanomaterials can be synthesized under uniform nucleation conditions supported by good mixing, which provides high specific surface area and good reproducibility. 26,27 A supercritical hydrothermal method is one of the advanced hydrothermal technologies, in which water acts as the solvent or reaction media under its supercritical state (T c : 374 °C, P c : 22.1 MPa). 29 Supercritical water has low dielectric constant and low viscosity, so it can be miscible with light gases such as hydrogen or organic compounds and solvents to achieve a homogeneous phase.…”

“…The representative syntheses of CeO 2 nanomaterials include precipitation, 16–18 sol–gel, 19–21 microemulsion, 22,23 sonochemical, 24,25 and hydrothermal 26–28 methods. The hydrothermal method is widely concerned because of its simplicity and easy process control of synthesis conditions.…”