Cited by Dynamic Self‐Healing of the Reconstructed Phase in Perovskite Oxides for Efficient and Stable Electrocatalytic OER

Electrochemical Oxidation of Small Molecules for Energy‐Saving Hydrogen Production DOI

Hainan Sun, Xiaomin Xu, Liangshuang Fei

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(30)

Published: May 27, 2024

Abstract Electrochemical water splitting is a promising technique for the production of high‐purity hydrogen. Substituting slow anodic oxygen evolution reaction with an oxidation that thermodynamically more favorable enables energy‐efficient Moreover, this approach facilitates degradation environmental pollutants and synthesis value‐added chemicals through rational selection small molecules as substrates. Strategies small‐molecule electrocatalyst design are critical to electrocatalytic performance, focus on achieving high current density, selectivity, Faradaic efficiency, operational durability. This perspective discusses key factors required further advancement, including technoeconomic analysis, new reactor system design, meeting requirements industrial applications, bridging gap between fundamental research practical product detection separation. aims advance development hybrid electrolysis applications.

Language: Английский

Citations

Regulating the electronic state of SnO2@NiFe-LDH heterojunction: Activating lattice oxygen for efficient oxygen evolution reaction DOI

Chaojie Yin,

Fanghe Zhou,

Chunliang Ding

et al.

Fuel, Journal Year: 2024, Volume and Issue: 370, P. 131762 - 131762

Published: May 4, 2024

Language: Английский

Citations

Defect engineering for surface reconstruction of metal oxide catalysts during OER DOI

Jingxuan Zheng, Zhao Wang

Chem Catalysis, Journal Year: 2024, Volume and Issue: 4(11), P. 101091 - 101091

Published: Sept. 3, 2024

Language: Английский

Citations

Low Pt Loading on Wolframite-Type NiWO₄ to Excel the Electrocatalytic Water Splitting and Ammonia Oxidation Reaction DOI

Hirak Kumar Basak,

Mrinal Kanti Adak,

Anubha Rajput

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 28, 2025

Hydrogen production via water-splitting or ammonia electrolysis using transition metal-based electrodes is one of the most cost-effective approaches. Herein, ca. 1-4% Pt atoms are stuffed into a wolframite-type NiWO4 lattice to improve electrocatalytic efficiency. The co-existence atomically dilute quantities Pt0 and PtIV in without altering structure established powder X-ray diffraction, inductively coupled plasma mass spectrometry (ICP-MS), core-level photoelectron spectroscopy, other spectroscopic studies. While undoped physical mixture (2 wt %) exhibit poor oxygen evolution reaction (OER), hydrogen (HER), oxidation (AOR) activities, 3-4% Pt-enriched depict improved performances with at least 50 mV overpotential drop for both OER HER. 3%Pt/NiWO4 electrode showcases long-term (for 110 h) chronoamperometric/chronopotentiometric HER performance, delivering high current low working potential. bifunctional behavior material leads development electrolyzer, 3%Pt/NiW/NF(-)/(+)3%Pt/NiW/NF, achieving >90% Faradaic efficiency H2 production. onset potential AOR also cathodically shifted 3%Pt/NiW 4%Pt/NiW compared itself. Electrokinetic study through rotating ring-disk (RRDE) experiment Koutecký-Levich provides an observed rate constant (kobs) 1.68 × 10-3 cm s-1 6e- count from kinetic region, highlighting [NO2]- as major product. 1 M NH3 4%Pt/NiW/NF produces predominantly (FE: 53%) [NO3]- 30%). activity can be due Tafel slope charge transfer resistance (Rct). being electron-rich induces facile electronic conduction during electrocatalysis enhances better binding analytes such H2O, [OH]-, NH3. At same time, centers present adjacent NiII sites polarize electron density stabilize NiIII species enhance possibility AOR. This demonstrates effect hetero-metal doping tune electrochemical activity. low-Pt-doped presented here multimodal electrocatalyst that efficiently electrolyze water produce hydrogen.

Language: Английский

Citations

Plasma‐Induced Oxygen Defect Engineering in Perovskite Oxide for Boosting Oxygen Evolution Reaction DOI

Kaiteng Wang,

Jun Zhou, Lei Fu

et al.

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

Published: Sept. 2, 2024

Abstract Perovskite oxides are considered highly promising candidates for oxygen evolution reaction (OER) catalysts due to their low cost and adaptable electronic structure. However, modulating the structure of without altering nanomorphology is crucial understanding structure‐property relationship. In this study, a simple plasma bombardment strategy developed optimize catalytic activity perovskite oxides. Experimental characterization plasma‐treated LaCo 0.9 Fe 0.1 O 3 (P‐LCFO) reveals abundant vacancies, which expose numerous active sites. Additionally, X‐ray photoelectron spectroscopy absorption fine analyses indicate Co valence state in P‐LCFO, likely presence these contributes an optimized that enhances OER performance. Consequently, P‐LCFO exhibits significantly improved activity, with overpotential 294 mV at current density 10 mA cm −2 , outperforming commercial RuO 2 . This work underscores benefits engineering studying relationships developing oxide water splitting.

Language: Английский

Citations

Dynamic in situ reconstruction of NiSe2 promoted by interfacial Ce2(CO3)2O for enhanced water oxidation DOI

Fengli Wei,

Jinghao Shen,

Jiayin Xie

et al.

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: 98, P. 472 - 480

Published: July 3, 2024

Language: Английский

Citations

Recent Advances in Perovskite Oxides for Oxygen Evolution Reaction: Structures, Mechanisms, and Strategies for Performance Enhancement DOI

Xiong Sun, Ying Yuan, Shuzhi Liu

et al.

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

Published: Nov. 22, 2024

Abstract Perovskite‐type oxides are widely employed as oxygen evolution reaction (OER) electrocatalysts due to their tunable composition, diverse structure, abundant natural reserves, remarkable stability, and low cost. The intrinsic OER electrocatalytic activity of these perovskite is generally enhanced by improving conductivity, increasing specific surface area, optimizing the adsorption oxygen‐containing intermediates. This achieved through rationally designed strategies, including compositional engineering, defect hybridization, regulation. In this review, recent advances in for summarized, with a focus on exploring structure‐performance relationships. review provides brief introduction application OER, followed classification characteristics oxides. primary catalytic mechanisms, well‐established descriptors discussed. key strategies concentrated enhancing activity, composition reconstruction. Finally, challenges opportunities developing high‐performance presented.

Language: Английский

Citations

Applications of perovskite oxides for oxygen evolution and oxygen reduction reactions in alkaline media DOI

Huimin Wang, Junfang Cheng, Hao Chen

et al.

Energy Reviews, Journal Year: 2025, Volume and Issue: unknown, P. 100139 - 100139

Published: April 1, 2025

Language: Английский

Citations

Confining Surface Oxygen Redox in Double Perovskites for Enhanced Oxygen Evolution Reaction Activity and Stability DOI

Natasha Hales,

Jinzhen Huang, Benjamin H. Sjo̷lin

et al.

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

Published: Jan. 22, 2025

Abstract Nickel‐based double perovskites AA′BB′O 6 are an underexplored class of oxygen evolution reaction (OER) catalysts, in which B‐site substitution is used to tune electronic and structural properties. BaSrNiWO , with a comprised alternating Ni W, exhibits high activity, attributed the highly OER active surface phase. The redox transformation 2+ (3d 8 ) 3+ 7 combined partial W dissolution into electrolyte from linear Ni(3d)‐O(2p)‐W(5d) chains drives situ reconstruction amorphized, NiO‐like layer, promoting mechanism. However, valence 6+ (5d 0 acts as stabilizing influence bulk, preventing mobilization lattice bound covalent W─O bonds. It proposed that generated during can support mechanism (LOEM) vacancies created preferentially refilled by electrolytic OH − while bulk O species remain stable. This LOEM (sLOEM) allows retain integrity catalysis. With Tafel slope 45 mV dec −1 0.1 m KOH, illustrates potential Ni‐based offer both efficiency stability alkaline electrolysis.

Language: Английский

Citations

Selective A‐Site Exsolution and Phase Transition in Perovskite Electrode for Efficient Flexible Znic‐Air Batteries DOI

Wenyu Zhang,

Nan Zhang,

Wenhui Zhu

et al.

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

Published: Feb. 14, 2025

Zinc-air batteries (ZABs) are highly promising for flexible electronics due to their high energy density and cost-effective. However, practical application is impeded by the sluggish kinetics of oxygen evolution reduction reactions (OER/ORR). This study presents a novel design featuring BaO nanoparticles anchored on layered perovskite PrBaMn1.5Co0.5O6-δ (PBMC) nanofibers, fabricated through plasma method. Notably, treatment induces selective exsolution A-site Ba onto surface, while simultaneously driving transformation PBMC from simple perovskite, resulting in unique BaO/PBMC heterostructure. Theoretical calculations demonstrate that construction heterojunction regulates interfacial electronic redistribution, thereby lowering barriers both OER ORR. Consequently, air electrode exhibits superior peak power enhanced stability solid-state ZABs, compared pristine cathode. Selective coupled with phase transition, alkaline-earth metal oxide/perovskite heterostructure, may offer new insights conversion technologies.

Language: Английский

Citations