Electrocatalytic performance of Ni@Pt core–shell nanoparticles supported on carbon nanotubes for methanol oxidation reaction

Ali, Shahid; Khan, Ibrahim; Khan, Safyan Akram; Sohail, Manzar; Ahmed, Rafay; Rehman, Ateeq Ur; Ansari, Muhammad Shahid; Morsy, Mohamed A.

doi:10.1016/j.jelechem.2017.04.040

Cited by 84 publications

(21 citation statements)

References 46 publications

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“…Building up of nanoparticles could be through top-down or bottom-up approach routes [2] . Based on physical and chemical properties, nanoparticles are classified into carbon-based [3] ), metallic [4] , ceramic, polymeric [5] , semiconductor [6] and liquid-based [7] . Feasibility of size, facet and shape variation during synthesis gave metallic nanoparticles edge of various applications.…”

Section: Methods Detailsmentioning

confidence: 99%

Bottom-up approach synthesis of core-shell nanoscale zerovalent iron (CS-nZVI): Physicochemical and spectroscopic characterization with Cu(II) ions adsorption application

et al. 2020

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Section: Methods Detailsmentioning

confidence: 99%

Bottom-up approach synthesis of core-shell nanoscale zerovalent iron (CS-nZVI): Physicochemical and spectroscopic characterization with Cu(II) ions adsorption application

et al. 2020

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“…As reported by Sun (2000) (33) signi cant alteration in the properties with extensive and gap tuning in the NPs of semiconductors and proved signi cant supplies in the photo catalysis and electronic devices and also found various water splitting applications (34). Semiconductor material possesses properties between non metallic and metallic materials and execute to this characteristic features (35,36).…”

Section: Ceramics Nanoparticlesmentioning

confidence: 90%

Biogenic Green Synthesis of Nanoparticles from Living sources with Special Emphasis on Their Biomedical Applications

Ga¹,

Nanda²,

Chakravorty³

et al. 2021

Preprint

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Nanobiotechnology has been achieved great significance in terms of nanomedicine & many others. But the first challenge in nanobiotechnology science is the preparation of stable nanoparticles. Presently, many preparation methods have been developed like different chemical & physical processes, but the main drawbacks of these processes are required hazardous chemicals, environmental impact, and ultimately expenses a lot. To overcome these challenges another advanced technology has been developed, which is termed green or biogenic synthesis. This review is discussing the modern approaches of the eco-friendly and cost-effective methodology of green synthesis of nanoparticles by using different eukaryotic & prokaryotic agents like plants, human cell lines, diatoms, algae, fungi, bacteria, viruses, and other organisms. Also, this review gives a clear idea of the different applications of those nanoparticles in drug delivery, dentistry, labeling, diagnostics & sensors.

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“…In addition, CH 3 OH chemisorption and CO intermediate adsorption are also predicted to be suppressed on platinized Ni catalysts due to strain effects [461,462], implying that core-shell Ni@Pt electrocatalysts possess good catalytic activities for small organic molecules such as methanol, ethanol and formic acid [336,[463][464][465][466][467][468]. For example, Yuan et al [464] synthesized core-shell Ni@Pt nanoparticles through chemical reduction for use as an electrocatalyst for methanol oxidation which exhibited a 40 mV negative shift in onset potential, a 5.6 times better specific activity, and a higher forward anodic peak current density (I f ) to reverse anodic peak current density (I b ) (I f /I b , 1.57) than Pt/C catalysts.…”

Section: Ni As Corementioning

confidence: 99%

Core–Shell-Structured Low-Platinum Electrocatalysts for Fuel Cell Applications

Wang

Luo

et al. 2018

Electrochem. Energ. Rev.

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Pt-based catalysts are the most efficient catalysts for low-temperature fuel cells. However, commercialization is impeded by prohibitively high costs and scarcity. One of the most effective strategies to reduce Pt loading is to deposit a monolayer or a few layers of Pt over other metal cores to form core-shell-structured electrocatalysts. In core-shell-structured electrocatalysts, the compositions of the core can be divided into five classes: single-precious metallic cores represented by Pd, Ru, and Au; singlenon-precious metallic cores represented by Cu, Ni, Co, and Fe; alloy cores containing 3d, 4d or 5d metals; and carbide and nitride cores. Of these, researchers have found that carbide and nitride cores can yield tremendous advantages over alloy cores in terms of cost and promotional activities of Pt shells. In addition, desirable shells with reasonable thicknesses and compositions have been recognized to play a dominant role in electrocatalytic performances. And recently, researchers have also found that the catalytic activity of core-shell-structured catalysts is dependent on the binding energy of the adsorbents, which is determined by the d-band center of Pt. The shifting of this d-band center in turn is mainly affected by strain and electronic effects, which can be adjusted by adjusting core compositions and shell thicknesses of catalysts. In the development of these core-shell structures, optimal synthesis methods are of primary concern because they directly determine the practical application potential of the resulting electrocatalysts. And in this article, the principles behind core-shell-structured low-Pt electrocatalysts and the developmental progresses of various synthesis methods along with the traits of each type of core and its effects on Pt shell catalytic activities are discussed. In addition, perspectives on this type of catalyst are discussed and future research directions are proposed.

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Electrocatalytic performance of Ni@Pt core–shell nanoparticles supported on carbon nanotubes for methanol oxidation reaction

Cited by 84 publications

References 46 publications

Bottom-up approach synthesis of core-shell nanoscale zerovalent iron (CS-nZVI): Physicochemical and spectroscopic characterization with Cu(II) ions adsorption application

Bottom-up approach synthesis of core-shell nanoscale zerovalent iron (CS-nZVI): Physicochemical and spectroscopic characterization with Cu(II) ions adsorption application

Biogenic Green Synthesis of Nanoparticles from Living sources with Special Emphasis on Their Biomedical Applications

Core–Shell-Structured Low-Platinum Electrocatalysts for Fuel Cell Applications

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