HEИндивидуална стипендия2023–2025

SCCAMC · Stabilization of Carbon Chain and Application on Metal-free Catalyst

„Хоризонт Европа“ — Действия „Мария Склодовска-Кюри“

Период: 2023-08-01 → 2025-07-31
Финансиране от ЕС: 172 750 €
Участници: 1
Схема: HORIZON-TMA-MSCA-PF-EF

Линиите свързват координатора с партньорите.

Накратко на български

Въглеродните вериги, или атомни наножици, се стабилизират в твърди материали за използване като катализатори без метал. Това помага за подобряване на електрохимичните процеси, като например реакцията за редукция на кислорода.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Stabilization of Carbon Chain and Application on Metal-free Catalyst

The goal of this project is to stabilize carbon chains (also known as polyynes or carbon atomic nanowires) in solid materials and to investigate their electrochemical performance, with a focus on metal-free catalysts for the oxygen reduction reaction (ORR). Three objectives are addressed: O1: deposition of functionalized carbon chains; O2: nitrogen-doping capability of carbon chain-based materials; O3: electrochemical performance of carbon chain-based materials as metal-free catalysts for ORR. In this project, we have developed new methods for synthesizing carbon chains, including a modified chemical coupling method and a modified physical arc-discharge method. A new sp–sp² hybrid carbon chain-based material has been synthesized through a liquid–liquid interfacial reaction at room temperature. This new carbon chain-based material has exhibited high stability under ambient conditions. Heat-treated carbon materials have undergone structural transformations and have demonstrated ORR performance as metal-free catalysts in alkaline electrolytes. In addition, a collaboration activity has been carried out to facilitate knowledge transfer. Polyynes, as perfectly linear molecules, have been successfully encapsulated into carbon nanotubes. An irreversible one-dimensional Langmuir adsorption model has been proposed to explain the behavior of linear carbon chains encapsulated in carbon nanotubes.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Carbon chain with true 1D structure attracts significant attentions and are expected to bring new knowledge in nanoscience. It is recognized that linear carbon chain owns outstanding fundamental properties such as higher modulus and stiffness than graphene, extremely high mobility and tunable band gap. However, the preparation and applications were limited by the high reactivity for hundred years. Fortunately, recent researches show the possibility to keep carbon chain exist in special condition. For instance, long linear chain encapsulated inside carbon nanotube, free standing polyyne molecules end-capped by functional group and two dimensional graphyne film made of sp-sp2 hybrid structure, et al. Now, both of basic property study and large-scale preparation of carbon chains are in progress. It is the key moment to explore the potential applications. The goal of SCCAMC is to prepare solid carbon chain-based materials which can be stable in normal condition, and to develop the application on metal-free catalyst for fuel cell. Hence, SCCAMC will provide a common method to largely extend the use of carbon chain. The research will prepare and enrich carbon chains in large yield. Functionalization will help to stabilize carbon chains in high concentration. By choosing different functional group, the modification of physical and chemical properties can be realized. Then it is expected to obtain stable solid materials in normal condition, which will largely extend their using realm. A standard procedure to combine large-scale preparation, enrichment, functionalization and solidification will be set up. Furthermore, the obtained carbon chain-based materials will be used as metal-free catalyst for fuel cell after nitrogen doping. By studying on the detailed mechanism, the design of carbon chain-based materials will be optimized for different application, specifically on fuel cell in this project.

Оригинален текст от CORDIS (на английски).

Участници

POLITECNICO DI MILANO · MilanoКоординаторИталия