Modified Separator Based on mesoporous carbon/TiO2 composites as Advanced Polysulfide Adsorber for High Electrochemical Performance Li-S Batteries

Liu, Shoufa; Li, Chunfeng; Liu, Dancheng

doi:10.1016/j.jallcom.2020.158381

Cited by 16 publications

(7 citation statements)

References 38 publications

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“…More importantly, the separator possesses large and slim pores with ionically insulating skeletons, which is not conducive to Li-ion distribution and PS inhibition. From the shuttle effect and safety aspect, carbon materials (e.g., carbon spheres, carbon nanotubes, and graphene), [3][4][5] metal oxides (e.g., ZnO, SiO 2 , and TiO 2 ), [6][7][8] metal suldes (e.g., MoS 2 , ZnS, and Co 9 S 8 ), [9][10][11] metal-organic frameworks (MOFs) and their hybrids have been widely employed to modify the polyolen separator surface via various strategies (such as vacuum-assisted ltration, blade coating, layer-by-layer assembly, etc. ), showing mitigated PS shuttling and better electrolyte wettability for the resulting separators.…”

Section: Introductionmentioning

confidence: 99%

Ion-selective aramid nanofiber-based Janus separators fabricated by a dry-wet phase inversion approach for lithium–sulfur batteries

Pei

Yang

et al. 2022

J. Mater. Chem. A

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Section: Introductionmentioning

confidence: 99%

Ion-selective aramid nanofiber-based Janus separators fabricated by a dry-wet phase inversion approach for lithium–sulfur batteries

Pei

Yang

et al. 2022

J. Mater. Chem. A

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“…At 4 C, the DSC was still kept at 580.7 mAh g −1 after 500 cycles, with a CDR of 0.087% per cycle. Liu et al [ 147 ] synthesized a mesoporous C/TiO 2 (MC/TO) composite material as the surface modification material of separator. MC/TO contained abundant mesopores with a SSA of 81.2 m 2 g −1 .…”

Section: Mcbm For Lithium-sulfur Batteriesmentioning

confidence: 99%

Mesoporous Carbon-Based Materials for Enhancing the Performance of Lithium-Sulfur Batteries

Wang

Han

Feng

et al. 2023

IJMS

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The most promising energy storage devices are lithium-sulfur batteries (LSBs), which offer a high theoretical energy density that is five times greater than that of lithium-ion batteries. However, there are still significant barriers to the commercialization of LSBs, and mesoporous carbon-based materials (MCBMs) have attracted much attention in solving LSBs’ problems, due to their large specific surface area (SSA), high electrical conductivity, and other unique advantages. The synthesis of MCBMs and their applications in the anodes, cathodes, separators, and “two-in-one” hosts of LSBs are reviewed in this study. Most interestingly, we establish a systematic correlation between the structural characteristics of MCBMs and their electrochemical properties, offering recommendations for improving performance by altering the characteristics. Finally, the challenges and opportunities of LSBs under current policies are also clarified. This review provides ideas for the design of cathodes, anodes, and separators for LSBs, which could have a positive impact on the performance enhancement and commercialization of LSBs. The commercialization of high energy density secondary batteries is of great importance for the achievement of carbon neutrality and to meet the world’s expanding energy demand.

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“…The carbon nanomaterials coated with metal oxide are favored to increase the surface area, porosity, and binding sites. Mesoporous carbon-coated TiO 2 NPs have been reported in the literature but mainly focus on photocatalysis and energy applications . Metal oxides such as ZnO, Al 2 O 3 , and TiO 2 also have the advantages of a porous structure, low cost, physicochemical stability, ease of availability, and high surface area .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of MC/TiO₂ NPs Nanocomposite for Removal of Pb²⁺ and Reuse of Spent Adsorbent for Blood Fingerprint Detection

et al. 2023

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The removal of toxic heavy metals from wastewater through the use of novel adsorbents is expensive. The challenge arises after the heavy metal is removed by the adsorbent, and the fate of the adsorbent is not taken care of. This may create secondary pollution. The study aimed to prepare mesoporous carbon (MC) from macadamia nutshells coated with titanium dioxide nanoparticles (TiO2 NPs) using a hydrothermal method to remove Pb2+ and to test the effectiveness of reusing the lead-loaded spent adsorbent (Pb2+-MC/TiO2 NP nanocomposite) in blood fingerprint detection. The samples were characterized using SEM, which confirmed spherical and flower-like structures of the nanomaterials, whereas TEM confirmed a particle size of 5 nm. The presence of functional groups such as C and Ti and a crystalline size of 4 nm were confirmed by FTIR and XRD, respectively. The surface area of 1283.822 m2/g for the MC/TiO2 NP nanocomposite was examined by BET. The removal of Pb2+ at pH 4 and the dosage of 1.6 g/L with the highest percentage removal of 98% were analyzed by ICP-OES. The Langmuir isotherm model best fit the experimental data, and the maximum adsorption capacity of the MC/TiO2 NP nanocomposite was 168.919 mg/g. The adsorption followed the pseudo-second-order kinetic model. The ΔH° (−54.783) represented the exothermic nature, and ΔG° (−0.133 to −4.743) indicated that the adsorption process is spontaneous. In the blood fingerprint detection, the fingerprint details were more visible after applying the Pb2+-MC/TiO2 NP nanocomposite than before the application. The reuse application experiments showed that the Pb2+-MC/TiO2 NP nanocomposite might be a useful alternative material for blood fingerprint enhancement when applied on nonporous surfaces, eliminating secondary pollution.

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Modified Separator Based on mesoporous carbon/TiO2 composites as Advanced Polysulfide Adsorber for High Electrochemical Performance Li-S Batteries

Cited by 16 publications

References 38 publications

Ion-selective aramid nanofiber-based Janus separators fabricated by a dry-wet phase inversion approach for lithium–sulfur batteries

Ion-selective aramid nanofiber-based Janus separators fabricated by a dry-wet phase inversion approach for lithium–sulfur batteries

Mesoporous Carbon-Based Materials for Enhancing the Performance of Lithium-Sulfur Batteries

Synthesis and Characterization of MC/TiO₂ NPs Nanocomposite for Removal of Pb²⁺ and Reuse of Spent Adsorbent for Blood Fingerprint Detection

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Modified Separator Based on mesoporous carbon/TiO2 composites as Advanced Polysulfide Adsorber for High Electrochemical Performance Li-S Batteries

Cited by 16 publications

References 38 publications

Ion-selective aramid nanofiber-based Janus separators fabricated by a dry-wet phase inversion approach for lithium–sulfur batteries

Ion-selective aramid nanofiber-based Janus separators fabricated by a dry-wet phase inversion approach for lithium–sulfur batteries

Mesoporous Carbon-Based Materials for Enhancing the Performance of Lithium-Sulfur Batteries

Synthesis and Characterization of MC/TiO2 NPs Nanocomposite for Removal of Pb2+ and Reuse of Spent Adsorbent for Blood Fingerprint Detection

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Synthesis and Characterization of MC/TiO₂ NPs Nanocomposite for Removal of Pb²⁺ and Reuse of Spent Adsorbent for Blood Fingerprint Detection