Published April 9, 2021 | Version v1
Journal article Metadata-only

Facile preparation of hierarchical micro-nano FeF3·0.33H2O by a one-pot method with dual surfactants

Creators

  • 1. School of Materials Science and Engineering, Shanghai University, Shanghai 200444 (China)
  • 2. University of Chinese Academy of Sciences, Beijing 100029 (China)
  • 3. Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China)
  • 4. Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029 (China)
  • 5. Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210 (China)

Description

To prepare a hierarchical micro-nano structure FeF3·0.33H2O simply and economically, a one-pot method with dual surfactants was used. Scanning electron microscopy and a Fourier transformation infrared spectrometer revealed that polyvinyl pyrrolidone (PVP) regulates the morphology of the material, while cetyltrimethylammonium bromide (CTAB) can reshape FF@PVP, it can not only remove PVP at room temperature, but also obtain a hierarchical micro-nano structure. The electrochemical results show that the hierarchical micro-nano structure FF(1.5CTAB 0.5PVP) has the best electrochemical performance. It maintained a high specific capacity of 109.4 mAh g−1 after 100 cycles at 1 C. In particular, under the ultra-high rate discharge of 20 C, the ultra-high specific discharge capacity of 66.4 mAh g−1 was reached. The FF(1.5CTAB 0.5PVP)'s excellent electrochemical performance is mainly due to a large contact area between the electrolyte and active materials. (paper)

Availability note (English)

Available from http://dx.doi.org/10.1088/1361-6528/abd6d0

Additional details

Identifiers

DOI
10.1088/1361-6528/abd6d0;

Publishing Information

Journal Title
Nanotechnology (Print)
Journal Volume
32
Journal Issue
15
Journal Page Range
[11 p.]
ISSN
0957-4484

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
53065609
Subject category
S77: NANOSCIENCE AND NANOTECHNOLOGY;
Descriptors DEI
ELECTROCHEMISTRY; ELECTROLYTES; FOURIER TRANSFORMATION; INFRARED SPECTROMETERS; IRON FLUORIDES; MORPHOLOGY; NANOSTRUCTURES; PERFORMANCE; SCANNING ELECTRON MICROSCOPY; SURFACTANTS
Descriptors DEC
CHEMISTRY; ELECTRON MICROSCOPY; FLUORIDES; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; INTEGRAL TRANSFORMATIONS; IODIDES; IODINE COMPOUNDS; IRON COMPOUNDS; IRON HALIDES; IRON IODIDES; MEASURING INSTRUMENTS; MICROSCOPY; SPECTROMETERS; TRANSFORMATIONS; TRANSITION ELEMENT COMPOUNDS