Abstract
The growth of ultrathin 1D inorganic nanomaterials with controlled diameters remains challenging by current synthetic approaches. A polymer chain templated method is developed to synthesize ultrathin Bi2O2CO3 nanotubes. This formation of nanotubes is a consequence of registry between the electrostatic absorption of functional groups on polymer template and the growth habit of Bi2O2CO3. The bulk bismuth precursor is broken into nanoparticles and anchored onto the polymer chain periodically. These nanoparticles react with the functional groups and gradually evolve into Bi2O2CO3 nanotubes along the chain. 5.0 and 3.0 nm tubes with narrow diameter deviation are synthesized by using branched polyethyleneimine and polyvinylpyrrolidone as the templates, respectively. Such Bi2O2CO3 nanotubes show a decent lithium-ion storage capacity of around 600 mA h g−1 at 0.1 A g−1 after 500 cycles, higher than other reported bismuth oxide anode materials. More interestingly, the Bi materials developed herein still show decent capacity at very low temperatures, that is, around 330 mA h g−1 (−22 °C) and 170 mA h g−1 (−35 °C) after 75 cycles at 0.1 A g−1, demonstrating their promising potential for practical application in extreme conditions.
Original language | English |
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Article number | 2204236 |
Pages (from-to) | e2204236 |
Journal | Small |
Volume | 18 |
Issue number | 39 |
DOIs | |
State | Published - 28 Sep 2022 |
Bibliographical note
Funding Information:This work was supported by funding from the Natural Science Foundation of China (No. 52003163 and 22105129), the Guangdong Basic and Applied Basic Research Foundation (No. 2022A1515010670 and 2022A1515011048), the Science and Technology Innovation Commission of Shenzhen (No. KQTD20170810105439418 and No. 20200812112006001), and the NTUT‐SZU Joint Research Program (No. 2022005 and 2022015). The authors also appreciate the help from the electron microscopy center at Shenzhen University for testing the aberration‐corrected HAADF STEM.
Funding Information:
This work was supported by funding from the Natural Science Foundation of China (No. 52003163 and 22105129), the Guangdong Basic and Applied Basic Research Foundation (No. 2022A1515010670 and 2022A1515011048), the Science and Technology Innovation Commission of Shenzhen (No. KQTD20170810105439418 and No. 20200812112006001), and the NTUT-SZU Joint Research Program (No. 2022005 and 2022015). The authors also appreciate the help from the electron microscopy center at Shenzhen University for testing the aberration-corrected HAADF STEM.
Publisher Copyright:
© 2022 The Authors. Small published by Wiley-VCH GmbH.
Keywords
- Bi O CO nanotubes
- Li-ion batteries
- anode materials
- low-temperature performance