Breakthrough oxygen electrode reaction kinetics using BaCe0.7Zr0.1Y0.1Yb0.1O3−δ based composite air electrodes for reversible solid oxide cells DOI
Jun‐Young Park, K. Park, Won‐Jun Lee

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: April 10, 2025

Abstract For nearly half a century, composite air electrode architectures based on an oxygen-ion conducting Gd0.1Ce0.9O2–δ (GDC) electrolyte phase and catalytically-active, electronically conductive second have dominated solid-oxide electrochemical cell (SOC) design. This strategy maximizes three-phase boundary density reduces electrode/electrolyte interfacial resistance, leading to exceptionally durable, high-performance devices. While this approach has been highly effective, performance improvements recently plateaued. Here, we demonstrate new for SOC design by deploying mixed proton, oxygen ion, hole-conducting BaCe1-xZrxO3 (BCZ)-based materials (e.g., BaCe0.7Zr0.1Y0.1Yb0.1O3−δ, BCZYYb7111) in place of GDC architectures. revolutionizes optimally balancing the electronic ionic conductivity electrode, altering reaction pathway—leading lower-barrier rate-determining-step, expanding electrochemically active region from isolated zones entire surface area catalyst. In optimal configuration, where highly-active misfit-layered Gd0.3Ca2.7Co3.82Cu0.18O9-δ (GCCCO) bifunctional catalyst is composited with BCZYYb7111, attain fuel mode 7.08 W‧cm−2 electrolysis –7.88 A‧cm−2 at 1.3 V otherwise conventional yttria-stabilized zirconia (YSZ)-based reversible 800℃. Even reduced temperature 650℃, reaches 2.65 –1.86 mode. These remarkable results are attributed significantly enhanced charge transfer, efficient exchange, modified pathways, separation ions holes via large built-in diffusive electric double layer interface GCCCO-BCZYYb7111 electrode. We use same catalyst+BCZYYb711 composting enhance other popular electrocatalysts 38-129%, including La0.6Sr0.4CoO3-δ (LSC), La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF), PrBa0.5Sr0.5Co1.5Fe0.5O5+δ (PBSCF), La0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF), thereby establishing as widely-applicable air-electrode paradigm RSOCs.

Language: Английский

High-Entropy layered double hydroxides Tailor Pt electron state for Promoting acidic hydrogen evolution reaction DOI
Hui Xu, Yang Liu, Kun Wang

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 684, P. 566 - 574

Published: Jan. 11, 2025

Language: Английский

Citations

14
Single-atom dissolution at the MN4/MXene interface and electric field-driven adsorption mechanisms: Unraveling catalytic descriptors using machine learning DOI

Pei Song,

Zhikai Gao,

Tiren Peng

et al.

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162886 - 162886

Published: March 1, 2025

Language: Английский

Citations

1
Disrupt Mitochondrial Proton Gradients via Flexoelectric Catalysis to Deplete Tumor Energy and Enhance Immunotherapy DOI Open Access

Yihan Fu,

Zichuang Xu,

H. F. Liu

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

Abstract Mitochondria, recognized as the cellular powerhouse, provide a continuous stream of energy essential for rapid proliferation and elevated metabolic demands tumor cells. Herein, flexoelectric nanocatalyst, SrTiO₃/RGD/TPP (SRT), is engineered to disrupt mitochondrial proton gradients ionic balance through ultrasound‐induced catalysis. This interference impedes production, resulting in cell apoptosis due an inadequate supply. Upon ultrasound stimulation, SRT experiences polarization stress gradient, separation positive negative charges, thereby generating local electric field. The charges interact with protons (H⁺) intermembrane space produce hydrogen (H₂), reducing concentration disrupting subsequently inhibiting ATP synthesis. Concurrently, field modifies membrane potential (MMP), opening calcium uniporter (MCU) channels facilitating influx ions, overload dysfunction, ultimately severing supply disruption energy, when combined immunotherapy, demonstrates significant inhibition both vitro vivo models. Through integration catalysis this study potent anti‐tumor effects proposes new research directions nanomedicine.

Language: Английский

Citations

1
Dual Electric Fields in Ni-CdS@Ni(OH)2 Heterojunction: A Synergistic Spatial Charge Separation Approach for Enhanced Coupled CO2 Photoreduction and Selective Toluene Oxidation DOI Creative Commons
Khakemin Khan, Ahmed Mahmoud Idris, Haseebul Hassan

et al.

Advanced Powder Materials, Journal Year: 2025, Volume and Issue: unknown, P. 100284 - 100284

Published: March 1, 2025

Language: Английский

Citations

1
Enhancement of Photocatalytic Activity in BiFeO3 Nanoparticles through Electrical Polarization DOI Creative Commons

Jhen‐Yang Wu,

Xinyu Jin,

Wang Jun-an

et al.

Advanced Energy and Sustainability Research, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 16, 2025

This study investigates the enhancement of photocatalytic properties in BiFeO 3 nanoparticles through an additional electrical polarization (poling) pretreatment process. , a promising multiferroic material with narrow bandgap ≈2. 12 eV, is well‐suited forvisible light‐driven photocatalysis. However, its efficiency isoften limited by insufficient photogenerated charge availability. To address this, poling process was employed to align ferroelectric domains within nanoparticles, improving separation and enhancing activity. The findings reveal that preserves intrinsic maintaining visible light absorption capability. Steady‐state photoluminescence spectroscopy shows marked increase intensity poling‐treated samples, indicating enhanced carrier generation. Photo degradation experiments using Indigo dye as model pollutant demonstrate achieves remarkable photodegradation 99%, compared 56% for untreated . Additionally, retains 65% initial after four cycles, highlighting durability sustained environmental applications. underscores effectiveness performance providing valuable insights into development efficient photocatalysts via domain engineering purification technologies.

Language: Английский

Citations

0
Addressing the Complexity of Bridging Thermal and Reactive Catalysis. The Role of Strong Localised Electrical Fields DOI
Gabriele Centi, Siglinda Perathoner

Topics in Catalysis, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 3, 2025

Language: Английский

Citations

0
The Role of Oxygen Defects in High Entropy Perovskite for Lithium Ion Batteries DOI
Xuefeng Liu, Lixiang Ding,

Kezhuo Li

et al.

Acta Materialia, Journal Year: 2025, Volume and Issue: unknown, P. 120812 - 120812

Published: Feb. 1, 2025

Language: Английский

Citations

0
Atomic-scale anisotropic local electric field of BiOCl for enhanced photoelectrochemical seawater reduction DOI
Fei Wang, Wenbin Li, Zengtao Lv

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160774 - 160774

Published: Feb. 1, 2025

Language: Английский

Citations

0
Hydrogenation of Mixed Ir–Ti Oxide: A Powerful Concept to Promote the Oxygen Evolution Reaction in Acidic Water Electrolysis DOI Creative Commons
Wei Wang, Matej Zlatar, Yuejun Wang

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 6721 - 6730

Published: April 10, 2025

Language: Английский

Citations

0
Breakthrough oxygen electrode reaction kinetics using BaCe0.7Zr0.1Y0.1Yb0.1O3−δ based composite air electrodes for reversible solid oxide cells DOI
Jun‐Young Park, K. Park, Won‐Jun Lee

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: April 10, 2025

Abstract For nearly half a century, composite air electrode architectures based on an oxygen-ion conducting Gd0.1Ce0.9O2–δ (GDC) electrolyte phase and catalytically-active, electronically conductive second have dominated solid-oxide electrochemical cell (SOC) design. This strategy maximizes three-phase boundary density reduces electrode/electrolyte interfacial resistance, leading to exceptionally durable, high-performance devices. While this approach has been highly effective, performance improvements recently plateaued. Here, we demonstrate new for SOC design by deploying mixed proton, oxygen ion, hole-conducting BaCe1-xZrxO3 (BCZ)-based materials (e.g., BaCe0.7Zr0.1Y0.1Yb0.1O3−δ, BCZYYb7111) in place of GDC architectures. revolutionizes optimally balancing the electronic ionic conductivity electrode, altering reaction pathway—leading lower-barrier rate-determining-step, expanding electrochemically active region from isolated zones entire surface area catalyst. In optimal configuration, where highly-active misfit-layered Gd0.3Ca2.7Co3.82Cu0.18O9-δ (GCCCO) bifunctional catalyst is composited with BCZYYb7111, attain fuel mode 7.08 W‧cm−2 electrolysis –7.88 A‧cm−2 at 1.3 V otherwise conventional yttria-stabilized zirconia (YSZ)-based reversible 800℃. Even reduced temperature 650℃, reaches 2.65 –1.86 mode. These remarkable results are attributed significantly enhanced charge transfer, efficient exchange, modified pathways, separation ions holes via large built-in diffusive electric double layer interface GCCCO-BCZYYb7111 electrode. We use same catalyst+BCZYYb711 composting enhance other popular electrocatalysts 38-129%, including La0.6Sr0.4CoO3-δ (LSC), La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF), PrBa0.5Sr0.5Co1.5Fe0.5O5+δ (PBSCF), La0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF), thereby establishing as widely-applicable air-electrode paradigm RSOCs.

Language: Английский

Citations

0