Molten state synthesis of nickel phosphides: mechanism and composition-activity correlation for electrochemical applications
| العنوان: | Molten state synthesis of nickel phosphides: mechanism and composition-activity correlation for electrochemical applications |
|---|---|
| المؤلفون: | Liel Abisdris, Michal Weitman, Yair Ein-Eli, Reut Cohen, Jiawei Xia, Menny Shalom, Natasha Ronith Levy, Jesus Barrio, Rotem Geva, Michael Volokh, Lidan Xing, Jonathan Tzadikov |
| المصدر: | Journal of Materials Chemistry A. 9:27629-27638 |
| بيانات النشر: | Royal Society of Chemistry (RSC), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | inorganic chemicals, Materials science, Renewable Energy, Sustainability and the Environment, chemistry.chemical_element, General Chemistry, Electronic structure, Electrochemistry, Catalysis, Anode, chemistry.chemical_compound, Nickel, chemistry, Chemical engineering, General Materials Science, Chemical stability, Triphenylphosphine, Phase diagram |
| الوصف: | Nickel phosphides are highly attractive low-cost (electro)catalysts, thanks to their unique electronic structure, versatile phase diagram, and chemical stability. Herein, we describe a single-step, simple, and scalable synthesis of nickel phosphides, with good control over phase composition, size, and catalytic activity, by a direct thermal reaction of nickel nitrate hexahydrate and triphenylphosphine (PPh3). Advanced analytic tools combined with theoretical calculations reveal that upon heating, nickel ions are dissolved and coordinated by PPh3, enabling the synthesis of fine-tuned particles, with nickel phosphides phases ranging from Ni3P to Ni2P. The new synthetic method enables comprehending the correlation between phase composition and the phosphides’ catalytic activity. This work shows a clear composition-activity trend of the optimized nickel phosphides both as electrocatalysts for the hydrogen evolution reaction in acidic media and as anode materials in Li-ion batteries |
| تدمد: | 2050-7496 2050-7488 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::b6c5bddcef271b2d3ee8897f872833a7 https://doi.org/10.1039/d1ta08455k |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........b6c5bddcef271b2d3ee8897f872833a7 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20507496 20507488 |
|---|