Synthesis of PtCoNiRu/C nanoparticles by spray drying combined with reduction sintering for methanol electro-oxidation

Yao, Chensiqi; Xu, Hao; Li, Anjin; Li, Jigang; Pang, Fangzhao; Zhao, Panchao; He, Jiangyun; Yi, Wei; Jiang, Yunbo; Huang, Long

doi:10.1039/c9ra09764c

Cited by 3 publications

(2 citation statements)

References 43 publications

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“…Chemically assisted electrodeposition was developed for highly active electrodes [25] (Figure 1). Hydrothermal [23,26,27] and spray drying [10, 28,29] techniques are used as well. During the in situ exsolution, metal cations incorporated into the oxide form active metallic nanoparticles on its surface (Figure 2) in reducing atmospheres [30e32].…”

Section: Efficient Methods For Synthesis Of Materialsmentioning

confidence: 99%

Design of materials for solid oxide fuel cells, permselective membranes, and catalysts for biofuel transformation into syngas and hydrogen based on fundamental studies of their real structure, transport properties, and surface reactivity

Sadykov

Eremeev

Sadovskaya

et al. 2022

Current Opinion in Green and Sustainable Chemistry

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Section: Efficient Methods For Synthesis Of Materialsmentioning

confidence: 99%

Design of materials for solid oxide fuel cells, permselective membranes, and catalysts for biofuel transformation into syngas and hydrogen based on fundamental studies of their real structure, transport properties, and surface reactivity

Sadykov

Eremeev

Sadovskaya

et al. 2022

Current Opinion in Green and Sustainable Chemistry

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“…In addition, spray‐drying facilitates the homogeneous mixing of the precursor materials, resulting in a high and uniform distribution of active sites on the surface of the electrocatalyst. Most of the current examples of spray‐dried electrocatalysts concern carbon‐based spheres decorated or doped with metal catalysts for oxygen evolution reactions (OERs), [ 127 ] methanol electro‐oxidation [ 128 ] or the hydrogen evolution reaction (HER). [ 129 ] In a highly promising example, bifunctional electrocatalysts composed of doped mesoporous carbon‐based microspheres were made by spray‐drying from cost‐effective and biological precursors from eggs.…”

Section: Spray‐drying As a Highly Versatile Tool For Materials Chemistsmentioning

confidence: 99%

Multifunctional, Hybrid Materials Design via Spray‐Drying: Much more than Just Drying

Wintzheimer,

Luthardt,

Cao

et al. 2023

Advanced Materials

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Spray‐drying is a popular and well‐known “drying tool” for engineers. This perspective highlights that, beyond this application, spray‐drying is a very interesting and powerful tool for materials chemists to enable the design of multifunctional and hybrid materials. Upon spray‐drying, the confined space of a liquid droplet is narrowed down, and its ingredients are forced together upon “falling dry.” As detailed in this article, this enables the following material formation strategies either individually or even in combination: nanoparticles and/or molecules can be assembled; precipitation reactions as well as chemical syntheses can be performed; and templated materials can be designed. Beyond this, fragile moieties can be processed, or “precursor materials” be prepared. Post‐treatment of spray‐dried objects eventually enables the next level in the design of complex materials. Using spray‐drying to design (particulate) materials comes with many advantages—but also with many challenges—all of which are outlined here. It is believed that multifunctional, hybrid materials, made via spray‐drying, enable very unique property combinations that are particularly highly promising in myriad applications—of which catalysis, diagnostics, purification, storage, and information are highlighted.

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Spray‐dried Ni‐Co Bimetallic Catalysts for Dry Reforming of Methane

Küchen,

Olszok,

Kreitz

et al. 2024

ChemCatChem

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Dry reforming of methane (DRM) is an attractive reaction for synthesis gas production, since it converts two green‐ house gases into valuable chemical feedstock. Silica sup‐ ported bimetallic catalysts with constant metal loading but varying Ni/Co ratios (xNi = 1, 0.8, 0.6, 0.5, 0.4, 0.2, 0) were produced via spray‐drying for the application in DRM, aim‐ ing at the identification of compositions with superior activ‐ ity. In this study, building block particles refer to an inert framework, supporting the catalyst. The elemental distri‐ bution of Si, Ni, and Co within such building block parti‐ cles was evaluated using scanning transmission electron mi‐ croscopy. Additionally, X‐ray diffraction and temperature‐ programmed reduction experiments confirmed that Ni and Co initially exist in an oxidic state within the SiO2 frame‐ work after production and later transform into an alloyed metallic state upon reduction with hydrogen, as confirmed by X‐ray photoelectron spectroscopy. A systematic compar‐ ison of the activity over a temperature range (323‐1150 K) was performed using temperature scanning measurements. The highest intrinsic activity was found with the bimetallic Ni40Co60 particles.

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Synthesis of PtCoNiRu/C nanoparticles by spray drying combined with reduction sintering for methanol electro-oxidation

Abstract: The controllable synthesis of carbon-supported platinum-based multicomponent alloys is important for the development and application of direct methanol fuel cells (DMFCs).

Cited by 3 publications

References 43 publications

Design of materials for solid oxide fuel cells, permselective membranes, and catalysts for biofuel transformation into syngas and hydrogen based on fundamental studies of their real structure, transport properties, and surface reactivity

Design of materials for solid oxide fuel cells, permselective membranes, and catalysts for biofuel transformation into syngas and hydrogen based on fundamental studies of their real structure, transport properties, and surface reactivity

Multifunctional, Hybrid Materials Design via Spray‐Drying: Much more than Just Drying

Spray‐dried Ni‐Co Bimetallic Catalysts for Dry Reforming of Methane

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