Nitrogen-doped carbon-coated Ru nanoparticles as a highly efficient and stable electrocatalyst for alkaline hydrogen oxidation reaction DOI

Jianchao Yue,

Pengyu Han,

Xinyi Yang

и другие.

Electrochimica Acta, Год журнала: 2024, Номер unknown, С. 145623 - 145623

Опубликована: Дек. 1, 2024

Язык: Английский

Multiscale Understanding of Anion Exchange Membrane Fuel Cells: Mechanisms, Electrocatalysts, Polymers, and Cell Management DOI Creative Commons
Huiyu Lei, Xiaohua Yang, Zhangsen Chen

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 10, 2025

Abstract Anion exchange membrane fuel cells (AEMFCs) are among the most promising sustainable electrochemical technologies to help solve energy challenges. Compared proton (PEMFCs), AEMFCs offer a broader choice of catalyst materials and less corrosive operating environment for bipolar plates membrane. This can lead potentially lower costs longer operational life than PEMFCs. These significant advantages have made highly competitive in future cell market, particularly after advancements developing non‐platinum‐group‐metal anode electrocatalysts, anion membranes ionomers, understanding relationships between conditions mass transport AEMFCs. review aims compile recent literature provide comprehensive three key areas: i) mechanisms hydrogen oxidation reaction (HOR) oxygen reduction (ORR) alkaline media; ii) synthesis routes structure‐property cutting‐edge HOR ORR as well ionomers; iii) conditions, including water management impact CO 2 . Finally, based on these aspects, development perspectives proposed.

Язык: Английский

Процитировано

6
Balancing the Binding of Intermediates Enhances Alkaline Hydrogen Oxidation on D-Band Center Modulated Pd Sites DOI
Yang Zhou, Tao Chen,

Jiawei Ke

и другие.

Inorganic Chemistry, Год журнала: 2024, Номер 63(21), С. 10092 - 10098

Опубликована: Май 15, 2024

Exploring efficient alkaline hydrogen oxidation reaction (HOR) electrocatalysts is of great concern for constructing anion exchange membrane fuel cells (AEMFCs). Herein, d-band center modulated PdCo alloys with ultralow Pd content anchored onto the defective carbon support (abbreviated as PdCo/NC hereafter) are proposed highly HOR catalyst. The as-prepared catalyst exhibits exceptional performance compared to Pt/C catalyst, achieving thermodynamically spontaneous and kinetically preferential reactions. Specifically, resultant demonstrates a marked enhancement in performance, highest mass specific activities 1919.6 mA mgPd–1 1.9 cm–2, 51.1 4.2 times higher than those benchmark Pt/C, along an excellent stability chronoamperometry test. In analysis situ Raman spectra, it was discovered that tetrahedrally coordinated H-bonded water molecules were formed during process. This indicates promotion interfacial molecule formation facilitated by defect engineering turning alloy. essential knowledge obtained this study could open up new direction modifying electronic structure cost-effective catalysts through engineering.

Язык: Английский

Процитировано

3
Free-Standing Ni nanoparticles wrapped in electrochemically reduced graphene Oxide: A highly efficient electrocatalyst for hydrogen evolution in acidic conditions DOI
Bingül Kurt Urhan,

Saadet Dinç,

Ümit Demir

и другие.

Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 131834 - 131834

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0
Alkaline hydrogen oxidation reaction on nickel-based non-noble metal electrocatalysts DOI Creative Commons
Lulu An,

Tonghui Zhao,

Wen Lei

и другие.

eScience, Год журнала: 2025, Номер unknown, С. 100400 - 100400

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Rapid Microwave‐Assisted Synthesis of Ru@NC Catalysts for Long‐Lasting Hydrogen Evolution Catalysis DOI

Zhide Geng,

Wenrui Li, Xianchun Chen

и другие.

Small, Год журнала: 2025, Номер unknown

Опубликована: Май 13, 2025

Abstract Even chemically stable Pt and Ru‐based catalysts suffer from activity degradation under high‐current hydrogen evolution reaction (HER) conditions, limiting the performance of water electrolysis. Encapsulating nanoparticles (NPs) with carbon shells is a promising way to enhance catalyst stability. Herein, Ru NPs encapsulated in N‐doped (Ru@NC) are synthesized via rapid microwave‐assisted pyrolysis bimetallic metal‐triazole framework. Specifically, Ru@NC demonstrates remarkable catalytic performance, achieving current densities 100 1000 mA cm −2 overpotentials only 77 287 mV, respectively, 1 м KOH. Moreover, it exhibited extraordinary long‐term stability toward HER (1000 for 500 h), outperforming bare nanoparticle catalysts. The synergistic effects protective shell metal‐support interaction provide both physical confinement chemical stabilization, effectively preventing agglomeration intrinsic decay. This work introduces versatile strategy preparing carbon‐shell‐coated highlights critical role enhancing HER.

Язык: Английский

Процитировано

0
Electronic regulation of hcp-Ru by d-d orbital coupling for robust electrocatalytic hydrogen oxidation in alkaline electrolytes DOI
Yi Liu,

Lianrui Cheng,

Shuqing Zhou

и другие.

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 677, С. 997 - 1004

Опубликована: Авг. 22, 2024

Язык: Английский

Процитировано

0
Nitrogen-doped carbon-coated Ru nanoparticles as a highly efficient and stable electrocatalyst for alkaline hydrogen oxidation reaction DOI

Jianchao Yue,

Pengyu Han,

Xinyi Yang

и другие.

Electrochimica Acta, Год журнала: 2024, Номер unknown, С. 145623 - 145623

Опубликована: Дек. 1, 2024

Язык: Английский

Процитировано

0