Composition-tunable PtCu porous nanowires as highly active and durable catalyst for oxygen reduction reaction

Cao, Hehuan; Cao, Jidong; Wang, Fanghui; Di, Shuxian; Zhu, Hong; Pu, Min; Буланова, А. В.

doi:10.1016/j.ijhydene.2021.02.208

Cited by 21 publications

(9 citation statements)

References 53 publications

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“…This is in good agreement with many experimental and theoretical reports such as Su et al synthesized Pt–Cu NT (PtCuNT) electrocatalysts and reported an enhanced activity and durability for ORR. Furthermore, the study carried out by Cao et al and Li et al are also in good agreement with our reports regarding durability of PtCu-based NRs.…”

Section: Resultssupporting

confidence: 93%

“…synthesized Pt−Cu NT (PtCuNT) electrocatalysts and reported an enhanced activity and durability for ORR. Furthermore, the study carried out by Cao et al35 and Li et al28 are also in good agreement with our reports regarding durability of PtCu-based NRs.3.2.2. Adsorption Properties of Cu 42 @Pt 48 Core−Shell NRs.…”

supporting

confidence: 93%

“…34 Apart from bare nanostructures, core−shell-based 1D catalysts have been also investigated for their ORR activity. Cao et al 35 synthesized PtCu porous NWs with controlled composition and reported for improved catalytic activity. Liang et al 36 studied the Pt@M (M = Au, Ag, and Pd) core−shell nanorods (NRs) for ORR activity, and Pt@Ag was reported for the highest stability in 0.5 M HClO 4 .…”

Section: Introductionmentioning

confidence: 99%

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Dimensional-Dependent Effects in Platinum Core–Shell-Based Catalysts for Fuel Cell Applications

Bharadwaj

Nair

Pathak

2021

ACS Appl. Nano Mater.

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The oxygen reduction reaction (ORR) activity of platinum catalysts can be affected by tuning the dimension. Experimental reports suggest that one-dimensional platinum catalysts have been identified as efficient ORR catalysts. With this objective, we have modeled one-dimensional Pt90 nanorods (NRs) and investigated the origin of ORR activity. Core–shell effects within one dimension are investigated by modeling 3d metal core-based platinum NRs. Thermodynamic and electrochemical stability-based screening of core–shell NRs suggested Cu42@Pt48 as the most stable core–shell system. Systematic analysis of ORR energetics revealed higher ORR activity of Pt90 NRs compared to the conventional Pt(111) surface catalyst, which is further improved by incorporating core–shell effects into the Cu42@Pt48 NR owing to the different reaction mechanisms associated with the core–shell structure. The activity modulation is principally governed by strain and charge-transfer effects. The dimensional effects are investigated by comparing the activities with two-dimensional surface and zero-dimensional nanocluster catalysts. The results obtained in this study provide fundamental insights into the dimensional effect of catalysts toward ORR activity.

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Section: Resultssupporting

confidence: 93%

supporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

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Dimensional-Dependent Effects in Platinum Core–Shell-Based Catalysts for Fuel Cell Applications

Bharadwaj

Nair

Pathak

2021

ACS Appl. Nano Mater.

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“…A porous metal structure is a very efficient structure which can provide high specific surface area and abundant catalytic active sites. The porous structure not only enhances the efficiency of Pt, but also inherits the high conductivity of the Pt, thus maximizing the electron transfer rate in the porous nanostructures [ 24 , 70 ]. However, the porous metal structures tend to be less stable, often in the form of NPs, which can easily agglomerate or detach from the supports [ 91 , 92 , 93 ].…”

Section: Controllable Preparation Of Pt-based Orr Catalystsmentioning

confidence: 99%

“…At present, researchers have also prepared a series of Pt alloy catalysts with porous nanostructures, which have showed good catalytic activity [ 70 ]. Li et al [ 75 ] developed porous Pt-Fe alloy nanowires through the dealloying method, which has a unique nanostructure.…”

Section: Controllable Preparation Of Pt-based Orr Catalystsmentioning

confidence: 99%

Pt-Based Oxygen Reduction Reaction Catalysts in Proton Exchange Membrane Fuel Cells: Controllable Preparation and Structural Design of Catalytic Layer

Zhao

Tao

et al. 2022

Nanomaterials

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Proton exchange membrane fuel cells (PEMFCs) have attracted extensive attention because of their high efficiency, environmental friendliness, and lack of noise pollution. However, PEMFCs still face many difficulties in practical application, such as insufficient power density, high cost, and poor durability. The main reason for these difficulties is the slow oxygen reduction reaction (ORR) on the cathode due to the insufficient stability and catalytic activity of the catalyst. Therefore, it is very important to develop advanced platinum (Pt)-based catalysts to realize low Pt loads and long-term operation of membrane electrode assembly (MEA) modules to improve the performance of PEMFC. At present, the research on PEMFC has mainly been focused on two areas: Pt-based catalysts and the structural design of catalytic layers. This review focused on the latest research progress of the controllable preparation of Pt-based ORR catalysts and structural design of catalytic layers in PEMFC. Firstly, the design principle of advanced Pt-based catalysts was introduced. Secondly, the controllable preparation of catalyst structure, morphology, composition and support, and their influence on catalytic activity of ORR and overall performance of PEMFC, were discussed. Thirdly, the effects of optimizing the structure of the catalytic layer (CL) on the performance of MEA were analyzed. Finally, the challenges and prospects of Pt-based catalysts and catalytic layer design were discussed.

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Recent progress of Pt-based oxygen reduction reaction catalysts for proton exchange membrane fuel cells

Zhan,

Hu,

Mai

et al. 2024

Rare Met.

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Composition-tunable PtCu porous nanowires as highly active and durable catalyst for oxygen reduction reaction

Cited by 21 publications

References 53 publications

Dimensional-Dependent Effects in Platinum Core–Shell-Based Catalysts for Fuel Cell Applications

Dimensional-Dependent Effects in Platinum Core–Shell-Based Catalysts for Fuel Cell Applications

Pt-Based Oxygen Reduction Reaction Catalysts in Proton Exchange Membrane Fuel Cells: Controllable Preparation and Structural Design of Catalytic Layer

Recent progress of Pt-based oxygen reduction reaction catalysts for proton exchange membrane fuel cells

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