High-Performance Electrocatalyst for PEMFC Cathode: Combination of Ultra-Small Platinum Nanoparticles and N-Doped Carbon Support | Sciact - CRIS-система Института катализа

High-Performance Electrocatalyst for PEMFC Cathode: Combination of Ultra-Small Platinum Nanoparticles and N-Doped Carbon Support Научная публикация

Журнал

Carbon Trends
ISSN: 2667-0569

Вых. Данные

Год: 2024, Номер статьи : 100383, Страниц : 11 DOI: 10.1016/j.cartre.2024.100383

Ключевые слова

Oxygen reduction reaction; N-doped carbon; Durability performance; Atom Pt; Carbon materials; Fuel cell

Авторы

Paperzh Kirill ¹ , Bayan Yulia ¹ , Gerasimov Evgeny ² , Pankov Ilya ³ , Konstantinov Alexey ⁴ , Vladislav Menshchikov ¹ , Mauer Dmitry ¹ , Beskopylny Yegor ¹ , Alekseenko Anastasia ¹

Организации

1	Southern Federal University, Faculty of Chemistry, 7 Zorge St., Rostov-on-Don 630090 Russia
2	Boreskov Institute of Catalysis, ak. Lavrentiev av. 5, Novosibirsk 630090 Russia
3	Southern Federal University, Research Institute of Physical Organic Chemistry, 194/2 Stachki St., Rostov-on-Don 344090 Russia
4	Southern Federal University, Faculty of Physics, 5 Zorge St., Rostov-on-Don 344090 Russia

Информация о финансировании (1)

Российский научный фонд

22-19-20101 (122071200010-6)

To accelerate the implementation of zero-emission power installations based on proton-exchange membrane fuel cells, it is necessary to maximize the power characteristics of these devices. For this purpose, we have obtained and tested a new N-doped carbon support and a synthesized Pt/C catalyst based on it with a platinum loading of about 37.3 %. A comparison of the degradation resistance of the initial support and the N-doped one has shown greater stability of the latter. At the same time, Raman spectroscopy has confirmed the presence of the C–N bond, which indicates the successful doping of carbon with nitrogen. The resulting Pt/C catalyst based on an N-doped support is characterized by a substantially narrow size dispersion and an ultra-small nanoparticle size of about 2.6 nm. The high-angle annular dark-field scanning transmission electron microscopy images of the synthesized catalyst have confirmed the presence of individual platinum atoms/clusters uniformly distributed over the surface of the support, and their presence is due to nitrogen embedded into the carbon structure. This material is characterized by a 50 m2 gPt-1 larger electrochemically active surface area and a 227 A gPt-1 greater mass activity compared to the commercial JM40 analog (40 % platinum loading). Meanwhile, the electrochemical parameters remaining after the accelerated stress testing are almost 2 times higher than those of JM40. And the power characteristics in the membrane electrode assembly for the catalyst synthesized by the facile one-pot synthesis method are 13 % (575 mW cm-2) higher than those of the commercial analog (500 mW cm-2). The Pt/C catalyst obtained during the research is deemed promising for commercial use in proton-exchange membrane fuel cells.

Paperzh K. , Bayan Y. , Gerasimov E. , Pankov I. , Konstantinov A. , Vladislav Menshchikov , Mauer D. , Beskopylny Y. , Alekseenko A.
High-Performance Electrocatalyst for PEMFC Cathode: Combination of Ultra-Small Platinum Nanoparticles and N-Doped Carbon Support
Carbon Trends. 2024. 100383 :1-11. DOI: 10.1016/j.cartre.2024.100383 Scopus OpenAlex

Поступила в редакцию:	15 мар. 2024 г.
Принята к публикации:	12 июн. 2024 г.
Опубликована online:	24 июл. 2024 г.
Опубликована в печати:	1 сент. 2024 г.

Scopus:	2-s2.0-85199478947
OpenAlex:	W4400952876

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