High‐Sulfur‐Loading Gel Cathode Employing a Self‐Supporting Composite Matrix for Lithium‐Polysulfide Batteries DOI Open Access
Cong Li, Yan Yuan, Zhengqian Li

et al.

Energy Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 14, 2024

Aimed at the application drawbacks of lithium‐polysulfide semiflow battery involved with low utilization active material and inevitable shuttle effect, a self‐supporting porous substrate characterized by high porosity outstanding conductivity is developed in this study, which consists cotton‐derived nanofiber graphene wrapped on nanofiber. Then gelable polymer poly‐(vinylidenefluoride‐hexafluoropropylene) further integrated into for fabricating novel PS gel cathode. The as‐prepared composite matrix possesses strong adsorption/loading ability gelation as well favorable electron/ion transport pathway, not only provides effective restriction toward migration shuttle, but also actualizes rapid redox conversion localized species. Consequently, resultant cathode demonstrates reversible capacity, excellent cycle rate capability even sulfur loading up to 9.0 mg cm −2 .

Language: Английский

Strong Interfacial Interaction in Polarized Ferroelectric Heterostructured Nanosheets for Highly Efficient and Selective Photocatalytic CO2 Reduction DOI Open Access
Xiao Liu, Yuyin Wang, Wenchao Tian

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 19, 2025

Abstract Heterojunctions are sustainable solutions for the photocatalytic CO 2 reduction reaction (CO RR) by regulating charge separation behavior at interface. However, their efficiency and product selectivity severely hindered inflexible weak built‐in electric field electronic structure of two phases. Herein, ferroelectric‐based heterojunctions between polarized bismuth ferrite (BFO(P)) CdS constructed to enhance interfacial interactions catalytic activity. The intrinsic polarization depending on ferroelectric state causes significant electrostatic potential difference energy‐band bending. This helps overcome unsatisfactory redox that differs from classical mechanism, synergy heterostructure facilitates effective transfer photogenerated charges with an extended lifetime (>20 ns) significantly enhanced photovoltage (1002 times BFO). optimized carrier dynamics allow heterojunction achieve a much higher yield compared state‐of‐the‐art photocatalysts, 85.46 23.47 than those pristine BFO, respectively. Moreover, it maintains impressive 100% together excellent repeatability cycling. work not only sheds light how strong inherent polarity promotes performance photocatalysts but also provides new insights designing efficient RR.

Language: Английский

Citations

4
Inductive effect of charge transfer in ferroelectrics and plasmonic Ag heterojunctions for enhanced CO2 photoreduction DOI
Xiao Liu,

Jicong Wang,

Wenchao Tian

et al.

Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(6)

Published: Feb. 10, 2025

Converting carbon dioxide into fuel and chemicals by utilizing solar energy represents a cutting-edge approach to recovery renewal. The transfer behavior of photogenerated electrons built-in electric field photocatalysts greatly affect the efficiency photoreduction reaction. Herein, heterostructures composed bismuth sodium titanate (BNT) ferroelectrics silver nanoparticles (Ag NPs) are constructed promote photocatalytic CO2 performance. large spontaneous polarization BNT optimizes dynamics photoinduced holes causes band bending with strong intrinsic field. With aid Ag NPs, BNT@xAg heterojunctions exhibit intensified light absorption due phenomenon localized surface plasmon resonance (LSPR), which extends visible spectrum strengthens charge transfer. modified catalysts demonstrate improved separation capacity notably prolonged electron lifetime up 40.95 ns. synergistic effect LSPR significantly boosts together ultrahigh CO product selectivity, is outstanding among ferroelectric other representative photocatalysts. This study elucidates enhancement mechanism plasmonic decorated offers an alternative route for design efficient catalysts.

Language: Английский

Citations

2
Novel Bi0.5Na0.5TiO3/MoS2 fibrous heterojunctions for piezoelectric activation of peroxymonosulfate to degrade organic pollutants DOI
Jun Liu,

Heng-Xue Xie,

Meng-Jie Chang

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: 1013, P. 178618 - 178618

Published: Jan. 1, 2025

Language: Английский

Citations

1
Significant enhancement of piezoelectric properties by mechanochemical activation in perovskite-like layered structure La2Ti2O7 ceramics DOI

Wangxin Li,

Biao Zhang,

Zhihong Luo

et al.

Materials Science and Engineering B, Journal Year: 2025, Volume and Issue: 315, P. 118100 - 118100

Published: Feb. 11, 2025

Language: Английский

Citations

0
Atomic-scale structural origin of giant strain in Ta-modified BNKT-based relaxor ferroelectrics DOI
Chang Liu,

Sijian Zhu,

Tianyang Zheng

et al.

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

0
Effect of entropy on dielectric and ferroelectric properties of BaTiO3-based ceramics for energy-storage applications DOI
Jia Liu, Jin Dai,

Furong Shang

et al.

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

Citations

0
Dielectric and ferroelectric properties of bismuth sodium titanate-based high-entropy ferroelectrics for energy-storage applications DOI
Jia Liu,

Ruinan Liang,

Furong Shang

et al.

Ceramics International, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

Citations

2
High‐Sulfur‐Loading Gel Cathode Employing a Self‐Supporting Composite Matrix for Lithium‐Polysulfide Batteries DOI Open Access
Cong Li, Yan Yuan, Zhengqian Li

et al.

Energy Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 14, 2024

Aimed at the application drawbacks of lithium‐polysulfide semiflow battery involved with low utilization active material and inevitable shuttle effect, a self‐supporting porous substrate characterized by high porosity outstanding conductivity is developed in this study, which consists cotton‐derived nanofiber graphene wrapped on nanofiber. Then gelable polymer poly‐(vinylidenefluoride‐hexafluoropropylene) further integrated into for fabricating novel PS gel cathode. The as‐prepared composite matrix possesses strong adsorption/loading ability gelation as well favorable electron/ion transport pathway, not only provides effective restriction toward migration shuttle, but also actualizes rapid redox conversion localized species. Consequently, resultant cathode demonstrates reversible capacity, excellent cycle rate capability even sulfur loading up to 9.0 mg cm −2 .

Language: Английский

Citations

0