Controllable Synthesis of Mesostructures from TiO Hollow to Porous Nanospheres with Superior Rate Performance for Lithium Ion Batteries
Overview
Affiliations
Uniform TiO nanospheres from hollow, core-shell and mesoporous structures have been synthesized using quasi-nano-sized carbonaceous spheres as templates. The TiO nanospheres formed after calcination at 400 °C are composed of ∼7 nm nanoparticles and the shells of the hollow TiO nanospheres are as thin as a single layer of nanoparticles. The ultrafine nanoparticles endow the hollow and mesoporous TiO nanospheres with short lithium ion diffusion paths leading to high discharge specific capacities of 211.9 and 196.0 mA h g at a current rate of 1 C (167.5 mA g) after 100 cycles, and especially superior discharge specific capacities of 125.9 and 113.4 mA h g at a high current rate of up to 20 C. The hollow and mesoporous TiO nanospheres also show superior cycling stability with long-term discharge capacities of 103.0 and 110.2 mA h g, respectively, even after 3000 cycles at a current rate of 20 C.
Dharmale N, A A, Srivastava A, Chaudhury S J Mol Model. 2024; 30(5):154.
PMID: 38691236 DOI: 10.1007/s00894-024-05943-y.
Mesoscience in Hollow Multi-Shelled Structures.
Wei Y, Zhao D, Wang D Adv Sci (Weinh). 2023; 11(8):e2305408.
PMID: 38032116 PMC: 10885658. DOI: 10.1002/advs.202305408.
MXene/graphene oxide heterojunction as a high performance anode material for lithium ion batteries.
Wang L, Yuan K, Bai H, Xuan P, Xu N, Yin C RSC Adv. 2023; 13(37):26239-26246.
PMID: 37671008 PMC: 10475980. DOI: 10.1039/d3ra04775j.
When hollow multishelled structures (HoMSs) meet metal-organic frameworks (MOFs).
Wang Z, Yang N, Wang D Chem Sci. 2021; 11(21):5359-5368.
PMID: 34094064 PMC: 8159310. DOI: 10.1039/d0sc01284j.
Yin H, Liu Y, Yu N, Qu H, Liu Z, Jiang R ACS Omega. 2019; 3(12):17466-17473.
PMID: 31458352 PMC: 6644137. DOI: 10.1021/acsomega.8b02446.