Enhancing surface activity and durability in triple conducting electrode for protonic ceramic electrochemical cells DOI Creative Commons
Shuanglin Zheng, Wei Wu, Yuchen Zhang

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: May 3, 2025

Abstract With the material system operating at lower temperatures, protonic ceramic electrochemical cells (PCECs) can offer high energy efficiency and reliable performance for both power generation hydrogen production, making them a promising technology reversible cycling. However, PCEC faces technical challenges, particularly regarding electrode activity durability under current density operations. To address these we introduce nano-architecture oxygen characterized by porosity triple conductivity, designed to enhance catalytic interfacial stability through self-assembly approach, while maintaining scalability. Electrochemical incorporating this advanced demonstrate robust performance, achieving peak of 1.50 W cm⁻ 2 600 °C in fuel cell mode 5.04 A cm −2 1.60 V electrolysis mode, with enhanced on transient operations thermal cycles. The underlying mechanisms are closely related improved surface mass transfer due dual features structure. Additionally, bonding between electrolyte contributes increased thermomechanical integrity. This study underscores critical importance optimizing microstructure achieve balance durability.

Language: Английский

High‐Entropy Driven Self‐Assembled Dual‐phase Composite Air Electrodes with Enhanced Performance and Stability for Reversible Protonic Ceramic Cells DOI Open Access
Ao Hu, Chenghao Yang, Yitong Li

et al.

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

Published: Feb. 9, 2025

Abstract Reversible proton ceramic cells (R‐PCCs) offer a transformative solution for dual functionality in power generation and energy storage. However, their potential is currently obstacles by the lack of high‐performance air electrodes combining high electrocatalytic activity with durability. Here, an innovative electrode composed high‐entropy driven self‐assembled xNiO‐Pr 0.2 La Ba Sr Ca Fe 0.8 Ni 0.2−x O 3−δ (N‐XFN) composites presented, which result from unique lattice distortion effects inherent perovskites. The experimental results coupled density functional theory (DFT) calculations verify that at A‐site significantly induces NiO nanoparticles exsolved B‐site, promoting formation biphasic composite structure dramatically increases electrochemical active sites. Remarkably, R‐PCCs using N‐XFN achieve impressive peak 1.30 W cm −2 fuel cell mode current ‐2.52 A 1.3 V electrolysis 650 °C. In addition, show excellent stability reversibility over 830 h, including 500 h 330 reversible operation This research provides important insights into design perovskites, paving way advanced technology.

Language: Английский

Citations

8
Enhancing performance of lower-temperature solid oxide fuel cell cathodes through surface engineering: A review DOI

Halefom G. Desta,

Gebrehiwot Gebreslassie, Jianjian Zhang

et al.

Progress in Materials Science, Journal Year: 2024, Volume and Issue: 147, P. 101353 - 101353

Published: Aug. 13, 2024

Language: Английский

Citations

11
Structurally Stable Perovskite Cathode with Extended Lifetime for Protonic Ceramic Fuel Cells DOI
Yitong Li, Caichen Yang,

Xucong Liu

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

Language: Английский

Citations

0
Recent breakthroughs in cathode of protonic ceramic fuel cells: Materials, functionalization, and future perspectives DOI Creative Commons

H.K. Kang,

Ye Ji Park,

Stephen Baek

et al.

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

Published: April 28, 2025

Abstract Hydrogen stands as a promising energy carrier that plays pivotal role in addressing global sustainability and achieving carbon neutrality. The conversion of hydrogen through fuel cells has emerged central technology this pursuit. Notably, protonic ceramic (PCFCs) hold potential for the future ecosystem, owing to their impressive efficiencies at low‐to‐intermediate temperatures (300–750°C). It is becoming increasingly evident development PCFC relies on advancements cathode, oxygen‐involved reactions often exhibit sluggish kinetics. In comprehensive review, we aim provide an overview current state knowledge concerning design advanced cathodes PCFCs. This includes discussing key descriptors cathodes, methods characterizing material properties, functionalization techniques enhance electrode performance. Finally, present insights into research directions. image

Language: Английский

Citations

0
Enhancing surface activity and durability in triple conducting electrode for protonic ceramic electrochemical cells DOI Creative Commons
Shuanglin Zheng, Wei Wu, Yuchen Zhang

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: May 3, 2025

Abstract With the material system operating at lower temperatures, protonic ceramic electrochemical cells (PCECs) can offer high energy efficiency and reliable performance for both power generation hydrogen production, making them a promising technology reversible cycling. However, PCEC faces technical challenges, particularly regarding electrode activity durability under current density operations. To address these we introduce nano-architecture oxygen characterized by porosity triple conductivity, designed to enhance catalytic interfacial stability through self-assembly approach, while maintaining scalability. Electrochemical incorporating this advanced demonstrate robust performance, achieving peak of 1.50 W cm⁻ 2 600 °C in fuel cell mode 5.04 A cm −2 1.60 V electrolysis mode, with enhanced on transient operations thermal cycles. The underlying mechanisms are closely related improved surface mass transfer due dual features structure. Additionally, bonding between electrolyte contributes increased thermomechanical integrity. This study underscores critical importance optimizing microstructure achieve balance durability.

Language: Английский

Citations

0