Indium-intercalated NiCo LDH on MWCNT as Bifunctional Electrocatalyst for HER and OER DOI

Kannankuzhiyil Surjith,

Ramakrishnan Vishnuraj,

Dinesh Harsha

et al.

Process Safety and Environmental Protection, Journal Year: 2025, Volume and Issue: unknown, P. 107159 - 107159

Published: April 1, 2025

Language: Английский

Self-supported and integrated Co3Al-layered bimetallic hydroxide nanoribbons on nickel foam enable efficient electrocatalytic water decomposition DOI Creative Commons
Yanming Jia,

Fu Yang,

Li Sun

et al.

Electrochemistry Communications, Journal Year: 2025, Volume and Issue: unknown, P. 107890 - 107890

Published: Feb. 1, 2025

Language: Английский

Citations

0

Mesostructured Pt alloy nanotubes with synergistic edge sites as bifunctional electrocatalysts for direct ethanol fuel cells DOI Open Access
Shensong Wang, Zhiliang Zhao, Yongming Hu

et al.

Energy Materials, Journal Year: 2025, Volume and Issue: 5(6)

Published: Feb. 26, 2025

Direct ethanol fuel cells are considered indispensable and prospective energy storage devices due to their high volumetric density. Platinum (Pt) Pt-based alloys regarded as the most effective catalysts for both oxygen reduction reaction (ORR) oxidation reaction. To further enhance catalytic performance of catalyst, it is necessary improve mass activity utilization efficiency Pt. In this work, we report a strategy fabricating ordered mesostructured platinum-palladium alloy nanotubes (MPPNs) with hierarchical porosity (68%) abundant exposed active edge sites. MPPNs exhibit excellent stability ORR, approximately 7.4 times higher than that commercial Pt/C catalyst. After 20 k cycles accelerated durability test demonstrate impressive retention original activity, maintaining value 93.9%. Furthermore, they display superior reactions, about 2.4 Pt/C. 2,000 scan cycles, remains at 84.5% initial performance. Both experimental theoretical studies reveal synergistic effect neighboring (111) (100) facets on sites plays critical role in enhancing electrocatalytic selectivity, stability.

Language: Английский

Citations

0

Modulating the Local Charge Distribution of Single‐Atomic Ru Sites for an Efficient Hydrogen Evolution Reaction DOI Creative Commons

Youyu Long,

Lingfeng Yang,

Min Xi

et al.

Carbon Energy, Journal Year: 2025, Volume and Issue: unknown

Published: March 7, 2025

ABSTRACT Ruthenium (Ru)‐based electrocatalysts show great promise as substitutes for platinum (Pt) the alkaline hydrogen evolution reaction (HER) because of their efficient water dissociation capabilities. Nevertheless, strong adsorption Ru–OH intermediates (Ru‐OH ad ) blocks active site, leading to unsatisfactory HER performance. In this study, we report a universal ligand‐exchange strategy synthesizing MOF‐on‐MOF‐derived FeP–CoP heterostructure‐anchored Ru single‐atom site catalyst (Ru‐FeP‐CoP/NPC). The obtained shows low overpotential (28 mV at 10 mA cm −2 and high mass activity (9.29 A mg −1 100 mV), surpassing performance commercial Pt/C by factor 46. Theoretical studies that regulating local charge distribution sites could alleviate surrounding OH − blockages, accelerating facilitating adsorption/desorption, thus enhancing activity. This work aims inspire further design highly durable with tailored electronic properties high‐purity production.

Language: Английский

Citations

0

Insight into the Facilitated surface reconstruction of NiFe layered double hydroxide by constructing heterostructures with Prussian blue analogues for enhanced oxygen evolution reaction DOI

Ruiqian Zhang,

Xinyi Sun,

Binbin Qian

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 137413 - 137413

Published: March 1, 2025

Language: Английский

Citations

0

Indium-intercalated NiCo LDH on MWCNT as Bifunctional Electrocatalyst for HER and OER DOI

Kannankuzhiyil Surjith,

Ramakrishnan Vishnuraj,

Dinesh Harsha

et al.

Process Safety and Environmental Protection, Journal Year: 2025, Volume and Issue: unknown, P. 107159 - 107159

Published: April 1, 2025

Language: Английский

Citations

0