Boosting Hydrogen Production from Formic Acid over Pd Catalysts by Deposition of N-Containing Precursors on the Carbon Support
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Energies
ISSN: 1996-1073
|
| Вых. Данные |
Год: 2019,
Том: 12,
Номер: 20,
Номер статьи
: 3885,
Страниц
: 13
DOI:
10.3390/en12203885
|
| Ключевые слова |
hydrogen production; formic acid decomposition; Pd/C; melamine; g-C3N4; bipyridine; phenanthroline; N-doped carbon |
| Авторы |
Golub Fedor S.
1,2
,
Beloshapkin Sergey
3
,
Gusel’nikov Artem V.
4
,
Bolotov Vasiliy A.
1
,
Parmon Valentin N.
1,2
,
Bulushev Dmitri A.
1,2
|
| Организации |
| 1 |
Laboratory of Catalytic Methods of Solar Energy Transformation, Boreskov Institute of Catalysis, SB RAS,
630090 Novosibirsk, Russia
|
| 2 |
Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
|
| 3 |
Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
|
| 4 |
Laboratory of Physico-Chemistry of Nanomaterials, Nikolaev Institute of Inorganic Chemistry, SB RAS,
630090 Novosibirsk, Russia
|
|
Информация о финансировании (1)
|
1
|
Российский научный фонд
|
17-73-30032
|
Formic acid is a promising liquid organic hydrogen carrier (LOHC) since it has relatively high hydrogen content
(4.4 wt%), low inflammability, low toxicity and can be obtained from biomass or from CO2. The aim of the present research was the creation of efficient 1 wt% Pd catalysts supported on mesoporous graphitic carbon (Sibunit) for the hydrogen production from gas-phase formic acid. For this purpose, the carbon support was modified by pyrolysis of deposited precursors containing pyridinic nitrogen such as melamine (Mel), 2,2′-bipyridine (Bpy) or
1,10-phenanthroline (Phen) at 673 K. The following activity trend of the catalysts Pd/Mel/C > Pd/C ~ Pd/Bpy/C >
Pd/Phen/C was obtained. The activity of the Pd/Mel/C catalyst was by a factor of 4 higher than the activity of the Pd/C catalyst at about 373 K and the apparent activation energy was significantly lower than those for the other catalysts
(32 vs. 42–46 kJ/mol). The high activity of the melaminebased samples was explained by a high dispersion of Pd nanoparticles (~2 nm, HRTEM) and their strong electron-deficient character (XPS) provided by interaction of Pd with pyridinic nitrogen species of the support. The presented results can be used for the development of supported Pd
catalysts for hydrogen production from different liquid organic hydrogen carriers.