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Chatchawan Panrot. Preparation and Characterization of Pt based Alloys on Manganese Oxide Modified Carbon Nanotubes for Use as Anode Catalysts in Direct Ethanol Fuel Cells. Master's Degree(Chemistry). Chiang Mai University Library. : Chiang Mai University, 2017.
Preparation and Characterization of Pt based Alloys on Manganese Oxide Modified Carbon Nanotubes for Use as Anode Catalysts in Direct Ethanol Fuel Cells
การเตรียมและการหาลักษณะเฉพาะของโลหะผสมที่มีแพลทินัมเป็นหลักบนท่อนาโนคาร์บอนที่ดัดแปรโดยแมงกานีสออกไซด์สำหรับใช้เป็นตัวเร่งปฏิกิริยาแอโนดในเซลล์เชื้อเพลิงแบบป้อนเอทานอลโดยตรง
Name: Chatchawan Panrot
LCSH:
Manganese catalysts
Classification :.DDC: 541.395
LCSH:
Catalysts
Abstract:
The development of electrocatalyst supports by using different manganese oxide phases (α and δ phases)loaded carbon nanotube (CNT/MnO2) composites was successfully carried out in this study.Various electrocatalysts were prepared by electrodeposition of platinum (Pt) on different compositions of manganese oxide phases supported CNT to determine the enhanced ethanol oxidation in acid medium. Various catalysts were characterized by transmission electron microscope (TEM), scanning electron microscope (SEM), energy dispersive X-ray (EDX) analysis and X-ray photoelectron spectroscopy (XPS) for the determination of morphologies and compositions. Their electrocatalytic activities were investigated by using cyclic voltammetry (CV) and chronoamperometry (CA). The results clearly indicate that incorporating manganese oxide with CNT significantly enhances oxidation current density of the catalyst possibly due to the presence of small, homogeneous and highly dispersed Pt active particles on the CNT/MnO2 support. The CNT/α-MnO2/Pt presents significantly higher anodic oxidation current and If/Ib ratio with lower onset potential when compared to the other catalysts. Besides, the bimetallic catalysts of CNT/α-MnO2/AuPt3 and CNT/α-MnO2/PdPt3 (ratio 1:3) also show excellent activities. Long-term electrocatalyst stability examined by chronoamperometry (CA) shows their excellent electrocatalytic performance by a reason of combination of M (Au and Pd) and α-MnO2 composite.
Chiang Mai University Library
Address:
Chiang Mai
Email:
cmulibref@cmu.ac.th
Name: Philaiwan Pornprasit
Role:
Chairman
Name: Napapha Promsawan
Role:
Member
Name: Surin Saipanya
Role:
Member
Created:
2017
Modified:
2020-01-10
Issued:
2020-01-10
วิทยานิพนธ์/Thesis
application/pdf
Th 541.395 C492P
eng
DegreeName: Master of Science
Level: Master's Degree
Descipline: Chemistry
Grantor: Chiang Mai University
©copyrights Chiang Mai University
RightsAccess:
ใช้เวลา
-0.95418 วินาที
Chatchawan Panrot
| Title | Contributor | Type |
|---|---|---|
| Preparation and Characterization of Pt based Alloys on Manganese Oxide Modified Carbon Nanotubes for Use as Anode Catalysts in Direct Ethanol Fuel Cells
มหาวิทยาลัยเชียงใหม่ Chatchawan Panrot | Philaiwan Pornprasit Napapha Promsawan Surin Saipanya | วิทยานิพนธ์/Thesis |
Philaiwan Pornprasit
Napapha Promsawan
| Title | Creator | Type and Date Create |
|---|---|---|
| Preparation and Characterization of Pt based Alloys on Manganese Oxide Modified Carbon Nanotubes for Use as Anode Catalysts in Direct Ethanol Fuel Cells
มหาวิทยาลัยเชียงใหม่ Philaiwan Pornprasit;Napapha Promsawan;Surin Saipanya | Chatchawan Panrot | วิทยานิพนธ์/Thesis |
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| Preparation of platinum nanoparticles on metal oxide loaded carbon nanotube for catalysis enhancement of Oxidation in low-temperature fuel cells
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Surin Saipanya