The extended Stӧber method for synthesizing nitrogen-doped porous carbon nanospheres supported Pt nanoparticles towards methanol oxidation in alkaline media

Xu, Minghao; Zhang, Wei; Qu, Yongfang; Liu, Xuejun; Zhai, Cuiping; Liu, Yong

doi:10.1016/j.matlet.2022.132894

Cited by 3 publications

(3 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The hard-templating route is one of the most common methods used to directly fabricate a variety of carbon nanoarchitectures with periodic macroporous or mesoporous features, which are derived from preformed hard templates, including porous silica frameworks, silica colloidal crystals, polystyrene (PS) spheres, calcium carbonate (CaCO 3 ) nanoparticles (NPs), and hollow metal oxide particles. − In general, these incorporated preformed hard templates can not only ensure complete filling of carbon precursors into porous channels, but also effectively prevent collapse of as-produced carbon skeletons during high-temperature heat treatment processes. Therefore, such preformed hard templates facilitate the fabrication of highly ordered porous carbon frameworks for the deposition of noble-metal nanocrystals. − …”

Section: Synthesis Of Noble Metal-decorated Porous Carbon Nanoarchite...mentioning

confidence: 99%

Advancements in Noble Metal-Decorated Porous Carbon Nanoarchitectures: Key Catalysts for Direct Liquid Fuel Cells

Huang,

Guo,

Zhang

et al. 2024

ACS Nano

View full text Add to dashboard Cite

Noble-metal nanocrystals have emerged as essential electrode materials for catalytic oxidation of organic small molecule fuels in direct liquid fuel cells (DLFCs). However, for large-scale commercialization of DLFCs, adopting cost-effective techniques and optimizing their structures using advanced matrices are crucial. Notably, noble metaldecorated porous carbon nanoarchitectures exhibit exceptional electrocatalytic performances owing to their three-dimensional cross-linked porous networks, large accessible surface areas, homogeneous dispersion (of noble metals), reliable structural stability, and outstanding electrical conductivity. Consequently, they can be utilized to develop nextgeneration anode catalysts for DLFCs. Considering the recent expeditious advancements in this field, this comprehensive review provides an overview of the current progress in noble metal-decorated porous carbon nanoarchitectures. This paper meticulously outlines the associated synthetic strategies, precise microstructure regulation techniques, and their application in electrooxidation of small organic molecules. Furthermore, the review highlights the research challenges and future opportunities in this prospective research field, offering valuable insights for both researchers and industry experts.

show abstract

Section: Synthesis Of Noble Metal-decorated Porous Carbon Nanoarchite...mentioning

confidence: 99%

Advancements in Noble Metal-Decorated Porous Carbon Nanoarchitectures: Key Catalysts for Direct Liquid Fuel Cells

Huang,

Guo,

Zhang

et al. 2024

ACS Nano

View full text Add to dashboard Cite

show abstract

“…79 The ECSA value was calculated to be 39.1 m 2 g À1 , which was higher than that of 25 m 2 g À1 reported previously for commercial Pt/C (20 wt%) catalyst. 80 The porous architectures of PEDOT/ERGO provided that the PtNPs were well dispersed on polymeric/graphene support leading to a larger surface area for the The voltammetric curve in Figure 5b displayed a forward oxidation peak and a reverse peak with anodic current, which was characteristic of methanol oxidation. The rise in forward current density corresponded to the oxidation of methanol, which was known to occur via the formation of various intermediates such as CO, HCOO, and others.…”

Section: Morphological Characterizationmentioning

confidence: 99%

Production of Pt decorated poly(3,4‐ethylenedioxythiophene)/ERGO/GCEas an efficient catalyst for methanol oxidation reaction

Mert

Karazehir

Mert

et al. 2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

In this study, Pt‐decorated poly(3,4‐ethylenedioxythiophene) (PEDOT) electrocatalyst was uniformly coated electrochemically reduced graphene oxide (ERGO) layer on glassy carbon electrode (GCE) has been created using appropriate procedures to facilitate the implementation of the methanol oxidation reaction (MOR). This multi‐layer catalyst was characterized in each production step via Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, field‐emission scanning electron microscopy and energy‐dispersive x‐ray analysis (FESEM‐EDX) morphological analysis beside the electrochemical tests. The favorable structures of both ERGO and PEDOT increase conductivity and electrocatalytic activity toward methanol oxidation, which may create a suitable matrix for Pt loading thanks to the formation of much more active centers for methanol electrooxidation. The results demonstrate that the electrochemical surface area (ECSA) of Pt/PEDOT/ERGO/GCE was 39.1 m2 g−1, and it has a convenient mass activity (MA with 467 mA mg Pt−1) compared to that of commercial Pt/C. According to chronoamperometric analysis, the current density of Pt/PEDOT/ERGO/GCE was stable during the 1200 s of operation. It demonstrated remarkable stability with a final current density of 4.36 mA cm−2.

show abstract

“…Direct methanol fuel cells (DMFCs) have received many researchers' extensive attention due to their high energy density, high conversion efficiency, and environmental friendliness [1,2]. Additionally, due to the abundant supply of methanol, simplicity of storage, and accessibility of current fuel delivery systems, DMFCs have become extremely attractive [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of PtPd Network Structure Nanochains Supported on Multi-Walled Carbon Nanotubes for Methanol Oxidation

Zhang

Ren

Jin

et al. 2022

Metals

View full text Add to dashboard Cite

In this paper, a PtPd NC catalyst with a network structure of nanochains was prepared with KBr as a structure-directing agent, NaBH4 as a reducing agent, and modified multi-walled carbon nanotubes (MWCNTs) as a support. The experimental results show that the structure-directing agent KBr helps to form a particular type of nanochain with a network topology. PtPd NCs with various ratios (Pt:Pd = 2:1, 1:1, 1:2) have respective diameters of 30 nm, 35 nm, and 23 nm. With numerous structural flaws at the junctions, the nanochains’ distinctive network structure increases the number of active sites on the PtPd nanocenter surface. Electrochemical characterization results show that the current density of the PtPd NCs is about 658.5 mA mg−1, 1.5-times that of the Pt/C catalyst and 3.9-times that of the commercial Pd/C catalyst. Furthermore, it has better electrocatalytic stability for methanol oxidation than Pd/C and Pt/C catalysts.

show abstract

The extended Stӧber method for synthesizing nitrogen-doped porous carbon nanospheres supported Pt nanoparticles towards methanol oxidation in alkaline media

Cited by 3 publications

References 15 publications

Advancements in Noble Metal-Decorated Porous Carbon Nanoarchitectures: Key Catalysts for Direct Liquid Fuel Cells

Advancements in Noble Metal-Decorated Porous Carbon Nanoarchitectures: Key Catalysts for Direct Liquid Fuel Cells

Production of Pt decorated poly(3,4‐ethylenedioxythiophene)/ERGO/GCEas an efficient catalyst for methanol oxidation reaction

Facile Synthesis of PtPd Network Structure Nanochains Supported on Multi-Walled Carbon Nanotubes for Methanol Oxidation

Contact Info

Product

Resources

About