التفاصيل البيبلوغرافية
| العنوان: |
Synthesis of Nanosized Powders for Lead–Acid Battery Pastes by Recycling of Used Batteries |
| المؤلفون: |
Mariela T. Dimitrova, Sasho V. Vassilev |
| المصدر: |
Materials Proceedings; Volume 4; Issue 1; Pages: 78 |
| بيانات النشر: |
Multidisciplinary Digital Publishing Institute |
| سنة النشر: |
2020 |
| المجموعة: |
MDPI Open Access Publishing |
| مصطلحات موضوعية: |
spent lead–acid batteries, lead citrate, desulfurization, leaching, recycling |
| الوصف: |
In the present work we have investigated the oxysulfate fraction of spent lead–acid battery pastes in search of an optimal method for its recycling. For this purpose, desulfurization and leaching were performed in one step by simultaneously adding aqueous solutions of sodium citrate and citric acid at varying temperatures (25–100 °С) and heat treatment times (1–2 h) in order to obtain a lead citrate precursor for direct application in the production of lead oxide powder. Two types of lead citrate were obtained: Pb(C6H6O7).H2O and Pb3(C6H5O7)2.3H2O. After calcination at low temperature (300 °C), these precursors formed a nanosized lead oxide powder. X-ray diffraction analysis (XRD) was performed at each stage of the study to monitor the changes in phase composition and crystallite size of the synthesized powder. Morphological features were investigated by scanning electron microscopy (SEM). An additional differential thermal analysis (DTA) was performed to determine the type of the obtained lead citrate. Finely dispersed lead oxide powders were formed. The measured crystallite sizes of the two main phases were 30–50 nm for β-PbO(111) and 40–60 nm for Pb(111). |
| نوع الوثيقة: |
text |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| Relation: |
https://dx.doi.org/10.3390/IOCN2020-07853 |
| DOI: |
10.3390/IOCN2020-07853 |
| الاتاحة: |
https://doi.org/10.3390/IOCN2020-07853 |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: |
edsbas.94127FA8 |
| قاعدة البيانات: |
BASE |