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Wang J, Zhang Y, Liu G, Zhang T, Zhang C, Zhang Y, Feng Y, Chi Q. Improvements in the Magnesium Ion Transport Properties of Graphene/CNT-Wrapped TiO 2 -B Nanoflowers by Nickel Doping. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2304969. [PMID: 37771192 DOI: 10.1002/smll.202304969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 08/29/2023] [Indexed: 09/30/2023]
Abstract
Magnesium-ion batteries are widely studied for its environmentally friendly, low-cost, and high volumetric energy density. In this work, the solvothermal method is used to prepare titanium dioxide bronze (TiO2 -B) nanoflowers with different nickel (Ni) doping concentrations for use in magnesium ion batteries as cathode materials. As Ni doping enhances the electrical conductivity of TiO2 -B and promotes magnesium ion diffusion, the band gap of TiO2 -B host material can be significantly reduced, and as Ni content increases, diffusion contributes more to capacity. According to the electrochemical test, TiO2 -B exhibits excellent electrochemical performance when the Ni element doping content is 2 at% and it is coated with reduced graphene oxide@carbon nanotube (RGO@CNT). At a current density of 100 mA g-1 , NT-2/RGO@CNT discharge specific capacity is as high as 167.5 mAh g-1 , which is 2.36 times of the specific discharge capacity of pure TiO2 -B. It is a very valuable research material for magnesium ion battery cathode materials.
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Affiliation(s)
- Jingshun Wang
- Key Laboratory of Engineering Dielectrics and Its Application (Ministry of Education), School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P. R. China
| | - Yongquan Zhang
- Key Laboratory of Engineering Dielectrics and Its Application (Ministry of Education), School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P. R. China
| | - Guang Liu
- Key Laboratory of Engineering Dielectrics and Its Application (Ministry of Education), School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P. R. China
- College of Electrical Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou, 310000, P. R. China
| | - Tiandong Zhang
- Key Laboratory of Engineering Dielectrics and Its Application (Ministry of Education), School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P. R. China
| | - Changhai Zhang
- Key Laboratory of Engineering Dielectrics and Its Application (Ministry of Education), School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P. R. China
| | - Yue Zhang
- Key Laboratory of Engineering Dielectrics and Its Application (Ministry of Education), School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P. R. China
| | - Yu Feng
- Key Laboratory of Engineering Dielectrics and Its Application (Ministry of Education), School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P. R. China
| | - Qingguo Chi
- Key Laboratory of Engineering Dielectrics and Its Application (Ministry of Education), School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P. R. China
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Dasarathan S, Sung J, Hong JW, Jo YS, Kim BG, Lee YJ, Choi HY, Park JW, Kim D. Free-standing TiO 2 nanograssy tubular hybrid membrane for polysulfide trapping in Li-S battery. RSC Adv 2023; 13:8299-8306. [PMID: 36922954 PMCID: PMC10010071 DOI: 10.1039/d3ra00349c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 02/23/2023] [Indexed: 03/18/2023] Open
Abstract
During the growth of anodic TiO2 nanotubes with a high layer thickness of greater than 20 μm, "nanograss" structures are typically formed on the outermost surface. This happens due to the fact that the engraving of the oxide tubes arises during prolonged exposure to an F- ion containing electrolyte. These TiO2 nanotubular layers have a high aspect ratio with astonishing bundles of nanograss structures on the tube top and especially a high surface area with anatase crystallites in the tubes. By two-step anodization in synergy with the hybridization of a rubber polymer binder, freestanding nanotubular layers consisting of nanograssy surfaces with nano-crystalline particles in the tubes were successfully obtained. Under the highly efficient polysulfide trapping and electrolyte perturbation, this nanotubular hybrid membrane could deliver an enriched performance with a capacity of 618 mA h g-1 after 100 cycles at 0.1C in Li-S batteries.
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Affiliation(s)
- Suriyakumar Dasarathan
- Next Generation Battery Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute (KERI) Jeongiui-gil 12, Seongsan-gu Changwon Gyeongsangnam-do 51543 Republic of Korea .,Department of Electro-functional Materials Engineering, University of Science and Technology (UST) Jeongiui-gil 12, Seongsan-gu Changwon Gyeongsangnam-do 51543 Republic of Korea
| | - Junghwan Sung
- Next Generation Battery Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute (KERI) Jeongiui-gil 12, Seongsan-gu Changwon Gyeongsangnam-do 51543 Republic of Korea .,Department of Electro-functional Materials Engineering, University of Science and Technology (UST) Jeongiui-gil 12, Seongsan-gu Changwon Gyeongsangnam-do 51543 Republic of Korea
| | - Jeong-Won Hong
- Next Generation Battery Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute (KERI) Jeongiui-gil 12, Seongsan-gu Changwon Gyeongsangnam-do 51543 Republic of Korea
| | - Yung-Soo Jo
- Next Generation Battery Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute (KERI) Jeongiui-gil 12, Seongsan-gu Changwon Gyeongsangnam-do 51543 Republic of Korea
| | - Byung Gon Kim
- Next Generation Battery Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute (KERI) Jeongiui-gil 12, Seongsan-gu Changwon Gyeongsangnam-do 51543 Republic of Korea .,Department of Electro-functional Materials Engineering, University of Science and Technology (UST) Jeongiui-gil 12, Seongsan-gu Changwon Gyeongsangnam-do 51543 Republic of Korea
| | - You-Jin Lee
- Next Generation Battery Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute (KERI) Jeongiui-gil 12, Seongsan-gu Changwon Gyeongsangnam-do 51543 Republic of Korea
| | - Hae-Young Choi
- Next Generation Battery Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute (KERI) Jeongiui-gil 12, Seongsan-gu Changwon Gyeongsangnam-do 51543 Republic of Korea
| | - Jun-Woo Park
- Next Generation Battery Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute (KERI) Jeongiui-gil 12, Seongsan-gu Changwon Gyeongsangnam-do 51543 Republic of Korea .,Department of Electro-functional Materials Engineering, University of Science and Technology (UST) Jeongiui-gil 12, Seongsan-gu Changwon Gyeongsangnam-do 51543 Republic of Korea
| | - Doohun Kim
- Next Generation Battery Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute (KERI) Jeongiui-gil 12, Seongsan-gu Changwon Gyeongsangnam-do 51543 Republic of Korea .,Department of Electro-functional Materials Engineering, University of Science and Technology (UST) Jeongiui-gil 12, Seongsan-gu Changwon Gyeongsangnam-do 51543 Republic of Korea
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