Synthesis of modified, ordered mesoporous carbon-supported Pt3Cu catalyst for enhancing the oxygen reduction activity and durability

Li, Yinlei; Gui, Fusheng; Wang, Fanghui; Li, Jianjun; Zhu, Hong

doi:10.1016/j.ijhydene.2021.09.042

Cited by 15 publications

(2 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[108] Due to high temperatures, mesoporous carbon loses most of its oxygen-containing groups during carbonization, thus exhibiting chemical inertness and hydrophobicity, limiting its application in various aspects. [109,110] To further develop the applications of mesoporous carbon, a lot of research has been done on the modification of this material, such as the introduction of nonmetallic elements (e.g., B, N, P, and S), metallic elements (e.g., monomers and oxides), and organic substances into the lattice, skeleton, pores, or surfaces of mesoporous carbon. The primary purpose of modifying mesoporous carbon is to introduce heteroatoms or surface-active functional groups into mesoporous carbon (Figure 9), which not only changes the morphological structure and physical and chemical characteristics of mesoporous carbon but also improves the related properties of mesoporous carbon, such as surface area, electrical conductivity, adsorption, and wettability, and so on.…”

Section: Modification Of Mesoporous Carbonmentioning

confidence: 99%

A review of the advancements in the synthesis and modification of mesoporous carbon and its application to electrochemistry

Lei

Tang

et al. 2023

Can J Chem Eng

View full text Add to dashboard Cite

In the 21st century, materials science has developed rapidly. Mesoporous carbon is now among the most attractive substances due to its enormous specific surface area, high porosity, and structured pore structure. There are many methods to synthesize mesoporous carbon, among which the template method is widely used because of the variety of templates and synthesis pathways. Mesoporous carbon has been used in many fields. Its good electrical conductivity, lightweight nature, and low price have led to many applications in electrochemistry, such as capacitors, electrodes, and materials for electric vehicles. This work contains a literature overview on the synthesis methods and modification techniques for mesoporous carbon, as well as its application in electrochemistry, which serves as a guide for the future growth of mesoporous carbon research.

show abstract

Section: Modification Of Mesoporous Carbonmentioning

confidence: 99%

A review of the advancements in the synthesis and modification of mesoporous carbon and its application to electrochemistry

Lei

Tang

et al. 2023

Can J Chem Eng

View full text Add to dashboard Cite

show abstract

“…Polymer electrolyte membrane fuel cells (PEMFCs) are increasingly gaining acceptance as a clean, efficient, and silent energy conversion technology, and are seen as a future alternative energy source [1][2][3]. However, the sluggish kinetics of the oxygen reduction reaction (ORR) and the instability of the platinum electrocatalysts for ORR significantly hinder the commercialization of PEMFCs [4][5][6][7]. Accordingly, a higher mass activity and longer durability/stability of the platinum electrocatalysts for ORR are required to increase the popularity of PEMFCs.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Mass Activity and Durability of Bimetallic Pt-Pd Nanoparticles on Sulfated-Zirconia-Doped Graphene Nanoplates for Oxygen Reduction Reaction in Proton Exchange Membrane Fuel Cell Applications

Yaldagard,

Arkas

2024

Molecules

View full text Add to dashboard Cite

Developing highly active and durable Pt-based electrocatalysts is crucial for polymer electrolyte membrane fuel cells. This study focuses on the performance of oxygen reduction reaction (ORR) electrocatalysts composed of Pt-Pd alloy nanoparticles on graphene nanoplates (GNPs) anchored with sulfated zirconia nanoparticles. The results of field emission scanning electron microscopy and transmission electron microscopy showed that Pt-Pd and S-ZrO2 are well dispersed on the surface of the GNPs. X-ray diffraction revealed that the S-ZrO2 and Pt-Pd alloy coexist in the Pt-Pd/S-ZrO2-GNP nanocomposites without affecting the crystalline lattice of Pt and the graphitic structure of the GNPs. To evaluate the electrochemical activity and reaction kinetics for ORR, we performed cyclic voltammetry, rotating disc electrode, and EIS experiments in acidic solutions at room temperature. The findings showed that Pt-Pd/S-ZrO2-GNPs exhibited a better ORR performance than the Pt-Pd catalyst on the unsulfated ZrO2-GNP support and with Pt on S-ZrO2-GNPs and commercial Pt/C.

show abstract

Spatially Confined Alloying of Pt Accelerates Mass Transport for Fuel Cell Oxygen Reduction

Gao,

Liu,

Wang

et al. 2024

Small

View full text Add to dashboard Cite

Pt‐based alloy with high mass activity and durability is highly desired for proton exchange membrane fuel cells, yet a great challenge remains due to the high mass transport resistance near catalysts with lowering Pt loading. Herein, an extensible approach employing atomic layer deposition to accurately introduce a gas‐phase metal precursor into platinum nanoparticles (NPs) pre‐filled mesoporous channels is reported, achieved by controlling both the deposition site and quantity. Following the spatially confined alloying treatment, the prepared PtSn alloy catalyst within mesopores demonstrates a small size and homogeneous distribution (2.10 ± 0.53 nm). The membrane electrode assembly with mesoporous carbon‐supported PtSn alloy catalyst achieves a high initial mass activity of 0.85 A at 0.9 V, which is attributed to the smallest local oxygen transport resistance (3.68 S m−1) ever reported. The mass activity of the catalyst only decreases by 11% after 30000 cycles of accelerated durability test, representing superior full‐cell durability among the reported Pt‐based alloy catalysts. The enhanced activity and durability are attributed to the decreased adsorption energy of oxygen intermediates on Pt surface and the strong electronic interaction between Pt and Sn inhibiting Pt dissolution.

show abstract

Synthesis of modified, ordered mesoporous carbon-supported Pt3Cu catalyst for enhancing the oxygen reduction activity and durability

Cited by 15 publications

References 45 publications

A review of the advancements in the synthesis and modification of mesoporous carbon and its application to electrochemistry

A review of the advancements in the synthesis and modification of mesoporous carbon and its application to electrochemistry

Enhanced Mass Activity and Durability of Bimetallic Pt-Pd Nanoparticles on Sulfated-Zirconia-Doped Graphene Nanoplates for Oxygen Reduction Reaction in Proton Exchange Membrane Fuel Cell Applications

Spatially Confined Alloying of Pt Accelerates Mass Transport for Fuel Cell Oxygen Reduction

Contact Info

Product

Resources

About