التفاصيل البيبلوغرافية
| العنوان: |
Co–N Active Sites between Co Nanoparticles and N‑Doped Carbon toward Remarkably Enhanced Electrocatalytic Oxygen Evolution and Hydrogen Evolution Reactions |
| المؤلفون: |
Qingtao Wang (138989), Kai Cui (239147), Dongxu Liu (547486), Yanxia Wu (741216), Shufang Ren (9680974) |
| سنة النشر: |
2022 |
| المجموعة: |
Smithsonian Institution: Digital Repository |
| مصطلحات موضوعية: |
Biophysics, Biochemistry, Evolutionary Biology, Developmental Biology, Infectious Diseases, Computational Biology, Environmental Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, oxygen evolution reaction, hydrogen evolution reactions, hydrogen evolution reaction, graphitic carbon nitride, carbon composite electrocatalysts, synthesizing various metal, nc nanosheets anchor, situ growth method, doped carbon, preparation method, effective method, metal electrocatalyst, metal dual, renewable energy, rational design, provides ideas, nc ), n atoms, manufacturing high, major challenges, layer capacitance, large number |
| الوصف: |
The rational design and synthesis of a non-noble-metal electrocatalyst for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) with good conductivity, high efficiency, and excellent stability are major challenges in the field of renewable energy. Therefore, we developed a simple and effective method to grow ZIF-67 in situ on graphitic carbon nitride (GCN) and then annealed it to generate nitrogen-doped carbon (NC) loaded with Co@C nanoparticles (Co@C/NC). Benefiting from this in situ growth method, after annealing, a large number of N atoms on the surface of NC nanosheets anchor more metal Co to form more catalytic Co–N active sites. At the same time, the Co@C/NC composites use NC nanosheets as the matrix, which can improve the electrochemical double-layer capacitance and conductivity of the composites. As demonstrated in electrochemical measurements, the OER and HER overpotentials of Co@C/NC composites at a current density of 10 mA cm –2 were only 300 and 175.4 mV in 1.0 M KOH, respectively. The preparation method is suitable for synthesizing various metal and carbon composite electrocatalysts. It provides ideas for designing and manufacturing high-performance non-noble-metal dual-function OER/HER catalysts. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| العلاقة: |
https://figshare.com/articles/journal_contribution/Co_N_Active_Sites_between_Co_Nanoparticles_and_N_Doped_Carbon_toward_Remarkably_Enhanced_Electrocatalytic_Oxygen_Evolution_and_Hydrogen_Evolution_Reactions/18550944Test |
| DOI: |
10.1021/acs.energyfuels.1c04141.s001 |
| الإتاحة: |
https://doi.org/10.1021/acs.energyfuels.1c04141.s001Test |
| حقوق: |
CC BY-NC 4.0 |
| رقم الانضمام: |
edsbas.6B02E870 |
| قاعدة البيانات: |
BASE |
