Lattice contracted Pd-hollow nanocrystals: Synthesis, structure and electrocatalysis for formic acid oxidation

Ren, Ming; Chen, Ju; Li, Yuan; Zhang, Haifeng; Zou, Zhiqing; Li, Xuemei; Yang, Hui

doi:10.1016/j.jpowsour.2013.07.067

Cited by 41 publications

(26 citation statements)

References 29 publications

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“…The outer shell part, which constitutes the entire simplex hollow structure, is the prerequisite element of all the hollow nanomaterials that delimit the heterogeneous outer/inner environment. It can serve as catalysts, supports or molecular sieves for sorts of catalytic reactions, and shows distinctive properties over other nanomaterials . For metallic and metal oxide hollow nanomaterials, it has demonstrated to show superior catalytic activity for electrocatalysis, photocatalysis, and heterogeneous catalysis owing to the high specific surface area, efficient active sites, and reduced diffusion distance .…”

Section: Insight Into Hollow Nanomaterials As a Nanoreactor In Spatiamentioning

confidence: 99%

Functionalization of Hollow Nanomaterials for Catalytic Applications: Nanoreactor Construction

et al. 2018

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Hollow nanomaterials have attracted a broad interest in multidisciplinary research due to their unique structure and preeminent properties. Owing to the high specific surface area, well-defined active site, delimited void space, and tunable mass transfer rate, hollow nanostructures can serve as excellent catalysts, supports, and reactors for a variety of catalytic applications, including photocatalysis, electrocatalysis, heterogeneous catalysis, homogeneous catalysis, etc. Based on state-of-the-art synthetic methods and characterization techniques, researchers focus on the purposeful functionalization of hollow nanomaterials for catalytic mechanism studies and intricate catalytic reactions. Herein, an overview of current reports with respect to the catalysis of functionalized hollow nanomaterials is given, and they are classified into five types of versatile strategies with a top-down perspective, including textual and composition modification, encapsulation, multishelled construction, anchored single atomic site, and surface molecular engineering. In the detailed case studies, the design and construction of hierarchical hollow catalysts are discussed. Moreover, since hollow structure offers more than two types of spatial-delimited sites, complicated catalytic reactions are elaborated. In summary, functionalized hollow nanomaterials provide an ideal model for the rational design and development of efficient catalysts.

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Section: Insight Into Hollow Nanomaterials As a Nanoreactor In Spatiamentioning

confidence: 99%

Functionalization of Hollow Nanomaterials for Catalytic Applications: Nanoreactor Construction

et al. 2018

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“…[265][266][267] In particular, hollow nanostructures of Pd and Pd-based alloys have demonstrated improved FAOR activity compared to commercially available Pd/C catalysts. [268][269][270][271][272][273] For example, Wang et al reported the synthesis of well-defined Pd nanoframes by controlling the rates of etching and the regrowth process (Fig. 11b).…”

Section: Limitations In Pt-based Binary Hollow Nanostructuresmentioning

confidence: 99%

Hollow nanoparticles as emerging electrocatalysts for renewable energy conversion reactions

et al. 2018

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While the realization of clean and sustainable energy conversion systems primarily requires the development of highly efficient catalysts, one of the main issues had been designing the structure of the catalysts to fulfill minimum cost as well as maximum performance. Until now, noble metal-based nanocatalysts had shown outstanding performances toward the oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER). However, the scarcity and high cost of them impeded their practical use. Recently, hollow nanostructures including nanocages and nanoframes had emerged as a burgeoning class of promising electrocatalysts. The hollow nanostructures could expose a high proportion of active surfaces while saving the amounts of expensive noble metals. In this review, we introduced recent advances in the synthetic methodologies for generating noble metal-based hollow nanostructures based on thermodynamic and kinetic approaches. We summarized electrocatalytic applications of hollow nanostructures toward the ORR, OER, and HER. We next provided strategies that could endow structural robustness to the flimsy structural nature of hollow structures. Finally, we concluded this review with perspectives to facilitate the development of hollow nanostructure-based catalysts for energy applications.

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“…Electrocatalytic activity of Pd nanostructures intensively depends on their size, shape and structure of the electrocatalysts [12][13][14][15]. So far, Pd nanostructures including nanocrystals, polyhedrons, nanosheets, nanorods and nanowires have been synthesized using various techniques, such as hydrothermal/solvothermal method, template and electrochemical methods [5,6,[11][12][13][14][15][16][17].…”

Section: Page 5 Of 23mentioning

confidence: 99%

“…So far, Pd nanostructures including nanocrystals, polyhedrons, nanosheets, nanorods and nanowires have been synthesized using various techniques, such as hydrothermal/solvothermal method, template and electrochemical methods [5,6,[11][12][13][14][15][16][17]. For example, tetrahexahedral Pd nanocrystals with high-index facets are prepared by a simple electrochemical deposition method, which show excellent electrochemical activity toward formic acid and ethanol [12].…”

Section: Page 5 Of 23mentioning

confidence: 99%

Template synthesis of palladium nanotubes and their electrocatalytic properties

Li¹,

Lu²,

Li³

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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A c c e p t e d M a n u s c r i p t A c c e p t e d M a n u s c r i p t Abstract: Palladium nanotubes were prepared by using silver nanowires as the template, which were prepared in a modified polyol reduction process. The morphology and structure of silver nanowires and palladium nanotubes were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Electrochemical experimental data showed that palladium nanotubes displayed high electrocatalytic activity towards the electrooxidation of alcohols, especially for ethanol. The formation mechanism of palladium nanotubes as well as the relationship between their structure and electrocatalytic activity was discussed based on the experimental results.

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Lattice contracted Pd-hollow nanocrystals: Synthesis, structure and electrocatalysis for formic acid oxidation

Cited by 41 publications

References 29 publications

Functionalization of Hollow Nanomaterials for Catalytic Applications: Nanoreactor Construction

Functionalization of Hollow Nanomaterials for Catalytic Applications: Nanoreactor Construction

Hollow nanoparticles as emerging electrocatalysts for renewable energy conversion reactions

Template synthesis of palladium nanotubes and their electrocatalytic properties

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