H2020Индивидуална стипендия2020–2022

LoCatSpot · Localized catalytic hotspot detection, manipulation, and creation for Energy Innovations

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2020-07-01 → 2022-06-30
Финансиране от ЕС: 144 981 €
Участници: 1
Схема: MSCA-IF

Линиите свързват координатора с партньорите.

Накратко на български

Двуизмерните материали, като дихалкогенидите на преходните метали, се изследват за подобряване на производството на водород чрез електролиза на вода. Това помага за прехода от изкопаеми горива към възобновяеми енергийни източници.

Този кратък обзор е генериран от изкуствен интелект

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

Резултати накратко

Localized catalytic hotspot detection, manipulation, and creation for Energy Innovations

Throughout the European Union, questions about the sustainability of our lifestyles have become a strong motivation for innovation in science and industry. The transformation of our society from the use of fossil fuels to the use of renewable energy sources is fundamental and a major challenge. A study from the Fuel Cells and Hydrogen joint undertaking (FCH JU) points to hydrogen as an essential element in the energy transition. The report “Hydrogen Roadmap Europe: A sustainable pathway for the European Energy Transition” says that hydrogen can account for 24% of final energy demand and 5.4 million jobs by 2050. Hydrogen can be produced by electrochemical water splitting. Tremendous efforts have already been made to develop new materials for efficient electrochemical water electrolysis. Since the first isolation of single-layer graphene, 2D layered materials have had an important role in related innovations. Among the 2D materials, transition metal dichalcogenides (TMDs) attracted great interest as potent electrocatalysts for the hydrogen evolution reaction (HER). However, up to now the expectations of TMDs as a possible replacement for less abundant Pt-based HER catalysts have not been fulfilled. On the road to better TMD-based catalysts for HER several challenges have to be faced. The first challenge is the gathering of specific information about the electrochemical activity of surface features. The second challenge is the selective generation and modification of well-defined TMD structures. The scanning electrochemical microscopy (SECM) provides the ideal basis for overcoming these challenges, by enabling the localization of catalytic effects on individual surface features as well as the generation of well-defined TMD structures. Therefore, this project entails the application of localized electrochemistry for selective electrochemical deposition and the direct analysis of the HER activity of TMDs to link the local electrochemical activity with structural features.

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

Цел на проекта

Throughout the European Union, questions about the sustainability of our lifestyles have become a strong motivation for innovations in chemical energy conversion and storage. Hydrogen is expected to play the key role in future developments. The electrochemical hydrogen evolution reaction (HER) is an important and future-oriented way of producing hydrogen. Tremendous efforts have been made to develop new materials as substitutes for Pt-based HER catalysts. Two dimensional transition metal dichalcogenide (TMD) are promising replacements due to their admirable catalytic activity and low cost. However, the expectations in TMDs as alternative HER catalysts have not yet been fulfilled. It is well known that local variations in the chemical composition and morphological characteristics (planes, edges) influence catalytic effects and thus change electrochemical activity. The development of advanced nanocomposites of two or more TMDs is therefore a fascinating and targeted approach which faces several challenges. One major challenge, especially for complex materials where modifications can cause multiple changes, is pinpointing the electrochemical activity to individual surface characteristics to identify catalytic hotspots. Another big challenge is the selective creation of catalytic hotspots up to the construction of well divined and highly efficient nanocomposite structures. The scanning electrochemical microscope enables the correlation of electrochemical activity to surface characteristics as well as the template-free chemical structuring of surfaces. In particular, the direct read out after induced modifications will deliver unprecedently detailed information about catalytic hotspots. This project aims to apply localized electrochemistry to provide clear solutions for both challenges and to finally path the way to new advanced 2D materials for further energy related innovations.

Оригинален текст от CORDIS (на английски).

Участници

VYSOKE UCENI TECHNICKE V BRNE · BRNO STREDКоординаторЧехия