Colossal permittivity with ultra-wide temperature stability in Bi + Ca co-doped BaTiO3 DOI Creative Commons
Tingting Fan, Qi Shi,

Wenrong Xiao

et al.

Journal of Materiomics, Journal Year: 2024, Volume and Issue: 11(2), P. 100877 - 100877

Published: May 16, 2024

The poor temperature stability of the BaTiO3 ceramic has always been main problem limiting their application. This situation improved but sacrifices intrinsic polarization, which significantly reduces dielectric constant. In this work, mechanism multiple polarization was creatively introduced, and properties BaTiO3-based ceramics are simultaneously enhanced. particular, Ba0.9925Bi0.005Ti0.995Ca0.005O2.995 (BBTC0.5) sample achieved excellent (−14.8%–8.85%) over an ultra-wide range (−47–400 oC) exhibited colossal permittivity (27,125, 25 oC, 1 kHz) low loss (0.07, kHz). properties, complex impedance spectra combined with XPS results indicate that defective dipole clusters (, ) along surface effects lead to effect. More importantly, SEM images show presence second phase at grain boundaries, prevent carriers within grains from accumulating boundaries. As a result, reduced further extended. strategy breaks traditional limitation single/noncomprehensive enhancement by single-polarization mechanism, is great theoretical practical significance promote research application high-performance materials.

Language: Английский

Electrochemical reduction of carbon dioxide to multicarbon (C2+) products: challenges and perspectives DOI Creative Commons
Bin Chang, Hong Pang,

Fazal Raziq

et al.

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 16(11), P. 4714 - 4758

Published: Jan. 1, 2023

This review analyzes advanced catalysts and C 2+ synthesis mechanisms based on theoretical explorations in situ / operando characterizations. Triphasic interface optimization is discussed for the potential of industry-compatible stability.

Language: Английский

Citations

170

Iron-based metal–organic frameworks and their derived materials for photocatalytic and photoelectrocatalytic reactions DOI
Yangdan Pan, Reza Abazari,

Beenish Tahir

et al.

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 499, P. 215538 - 215538

Published: Nov. 1, 2023

Language: Английский

Citations

128

Perovskite oxides as electrocatalysts for water electrolysis: From crystalline to amorphous DOI Creative Commons
Hainan Sun, Xiaomin Xu,

Gao Chen

et al.

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

Published: Aug. 2, 2024

Abstract Crystalline perovskite oxides are regarded as promising electrocatalysts for water electrolysis, particularly anodic oxygen evolution reactions, owing to their low cost and high intrinsic activity. Perovskite with noncrystalline or amorphous characteristics also exhibit electrocatalytic performance toward electrochemical splitting. In this review, a fundamental understanding of the advantages crystalline, noncrystalline, is presented. Subsequently, recent progress in development advanced electrolysis by engineering breaking crystallinity reviewed, special focus on underlying structure–activity relationships. Finally, remaining challenges unsolved issues presented, an outlook briefly proposed future exploration next‐generation water‐splitting based oxides.

Language: Английский

Citations

18

Advances in Defect Engineering of Metal Oxides for Photocatalytic CO2 Reduction DOI Creative Commons
Kang Zhong, Peipei Sun, Hui Xu

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: April 30, 2024

Abstract Photocatalytic CO 2 reduction technology, capable of converting low‐density solar energy into high‐density chemical energy, stands as a promising approach to alleviate the crisis and achieve carbon neutrality. Semiconductor metal oxides, characterized by their abundant reserves, good stability, easily tunable structures, have found extensive applications in field photocatalysis. However, wide bandgap inherent oxides contributes poor efficiency photocatalytic reduction. Defect engineering presents an effective strategy address these challenges. This paper reviews research progress defect enhance performance summarizing classifications, preparation methods, characterization techniques. The focus is on engineering, represented vacancies doping, for improving oxide photocatalysts. includes advancements expanding photoresponse range, enhancing photogenerated charge separation, promoting molecule activation. Finally, provides summary current issues challenges faced along with prospective outlook future development technology.

Language: Английский

Citations

16

Construction of Dual Active Sites in Perovskite Oxide for Targeted Photocatalytic CO2 Reduction to CH4 DOI
Yibo Gao, Miaomiao Zhang, Yang Jin

et al.

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(14), P. 10746 - 10759

Published: July 3, 2024

Language: Английский

Citations

14

Constructing Z-scheme WO3/C3N4 heterojunctions with an enlarged internal electric field and accelerated water oxidation kinetics for robust CO2 photoreduction DOI

Zhijia Song,

Qian Chen,

Zhiwei Sun

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(24), P. 14426 - 14436

Published: Jan. 1, 2024

The enlarged internal electric field and accelerated H 2 O oxidation kinetics synergically enhance the CO photoreduction activity of Z-scheme WO 3 /C N 4 heterojunctions.

Language: Английский

Citations

13

Recent progress on photocatalytic reduction of CO2 to C2+ products DOI

Hao‐wen Zhu,

Rui‐tang Guo, Cong Liu

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(33), P. 21677 - 21703

Published: Jan. 1, 2024

This review examines recent research advances for photocatalytic reduction of CO 2 to C 2+ products and predicts possible future directions further improve the selectivity multi-carbon species.

Language: Английский

Citations

11

Antenna Effect in Noble Metal‐Free Dye‐Sensitized Photocatalytic Systems Enhances CO2‐to‐CO Conversion DOI Creative Commons
Vasilis Nikolaou, Chinju Govind, Evangelos Balanikas

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(13)

Published: Feb. 7, 2024

Abstract Dye‐sensitized photocatalytic systems (DSPs) have been extensively investigated for solar‐driven hydrogen (H 2 ) evolution. However, their application in carbon dioxide (CO reduction remains limited. Furthermore, current CO ‐to‐CO DSPs typically employ rhenium complexes as catalysts. In this study, we developed that incorporate noble metal‐free components, specifically a zinc‐porphyrin photosensitizer (PS) and cobalt‐quaterpyridine catalyst (CAT). Taking significant stride forward, achieved an antenna effect the first time by introducing Bodipy additional chromophore to enhance light harvesting efficiency. The energy transfer from zinc porphyrin resulted remarkable stability (turn over number (TON)=759 vs. CAT), high evolution activity (42 mmol g −1 h CAT).

Language: Английский

Citations

9

Low-electric-field-induced high electrocaloric properties via defect regulation in samarium-doped BaTiO3 ceramics DOI

Haopeng Feng,

Huajin Wen,

Yanli Huang

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 989, P. 174362 - 174362

Published: April 1, 2024

Language: Английский

Citations

8

Recent Progress in Sr2Fe1.5Mo0.5O6‐δ‐Based Multifunctional Materials for Energy Conversion and Storage DOI Open Access
Hainan Sun, Xiaomin Xu, Yufei Song

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 1, 2024

Abstract Perovskite oxides, particularly double perovskite have drawn significant research interest within the fields of solid‐state chemistry and materials science. As a quintessential oxide, Sr 2 Fe 1.5 Mo 0.5 O 6‐δ (SFM) has unique electronic, magnetic, catalytic properties. These attributes make it promising candidate for energy conversion storage applications. This review offers comprehensive overview advancements using SFM across various applications, including solid oxide cells, protonic ceramic electrocatalysis. Notably, highlights emerging optimization strategies that enhance functionality based on fundamental understanding reaction mechanisms. The concludes by discussing persistent challenges facing SFM‐based functional materials, as well their prospects, considering both industrial

Language: Английский

Citations

6