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Copper phosphide as a promising anode material for potassium-ion batteries

Journal Article


Abstract


  • Potassium-ion batteries (PIBs) have attracted great attention due to the abundance and low cost of potassium resources. However the search for novel electrode materials with high volumetric-capacity for PIBs remains challenging. Here, we report an attractive Cu3P/carbon black anode material for potassium storage through a productive and cheap milling process. The Cu3P particles were homogeneously mixed with the amorphous carbon matrix. The carbon matrix effectively buffers the volume change and improves conductivity; meanwhile the P-C bond formed through the ball milling process can effectively connect the particles and stabilize the structure. Consequently, the fabricated Cu3P/carbon black composite delivered a capacity of 174 mA h g���1at 1 A g���1and remained stable for 300 cycles. The potassium storage mechanism is analysed and revealed byin situsynchrotron X-ray diffraction andex situhigh resolution transmission electron microscopy where a reversible mechanism was observed. The results prove the feasible utilization of Cu3P as a promising anode material for practical application of PIBs.

UOW Authors


  •   Yang, Qiuran (external author)
  •   Yang, Huiling (external author)
  •   Liu, Hanwen (external author)
  •   Peng, Jian (external author)
  •   Chou, Shulei (external author)
  •   Lai, Weihong (external author)
  •   Liu, Hua
  •   Peng, Jian
  •   Zhang, Binwei (external author)

Publication Date


  • 2021

Citation


  • Yang, Q., Tai, Z., Xia, Q., Lai, W., Wang, W., Zhang, B., . . . Liu, H. (2021). Copper phosphide as a promising anode material for potassium-ion batteries. Journal of Materials Chemistry A, 9(13), 8378-8385. doi:10.1039/d0ta11496k

Scopus Eid


  • 2-s2.0-85103092818

Start Page


  • 8378

End Page


  • 8385

Volume


  • 9

Issue


  • 13

Place Of Publication


Abstract


  • Potassium-ion batteries (PIBs) have attracted great attention due to the abundance and low cost of potassium resources. However the search for novel electrode materials with high volumetric-capacity for PIBs remains challenging. Here, we report an attractive Cu3P/carbon black anode material for potassium storage through a productive and cheap milling process. The Cu3P particles were homogeneously mixed with the amorphous carbon matrix. The carbon matrix effectively buffers the volume change and improves conductivity; meanwhile the P-C bond formed through the ball milling process can effectively connect the particles and stabilize the structure. Consequently, the fabricated Cu3P/carbon black composite delivered a capacity of 174 mA h g���1at 1 A g���1and remained stable for 300 cycles. The potassium storage mechanism is analysed and revealed byin situsynchrotron X-ray diffraction andex situhigh resolution transmission electron microscopy where a reversible mechanism was observed. The results prove the feasible utilization of Cu3P as a promising anode material for practical application of PIBs.

UOW Authors


  •   Yang, Qiuran (external author)
  •   Yang, Huiling (external author)
  •   Liu, Hanwen (external author)
  •   Peng, Jian (external author)
  •   Chou, Shulei (external author)
  •   Lai, Weihong (external author)
  •   Liu, Hua
  •   Peng, Jian
  •   Zhang, Binwei (external author)

Publication Date


  • 2021

Citation


  • Yang, Q., Tai, Z., Xia, Q., Lai, W., Wang, W., Zhang, B., . . . Liu, H. (2021). Copper phosphide as a promising anode material for potassium-ion batteries. Journal of Materials Chemistry A, 9(13), 8378-8385. doi:10.1039/d0ta11496k

Scopus Eid


  • 2-s2.0-85103092818

Start Page


  • 8378

End Page


  • 8385

Volume


  • 9

Issue


  • 13

Place Of Publication