Combination of Supercapacitor and AC Power Source in Storing and Supplying Energy for Computer Backup Power

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Phoosomma P., Kasayapanand N., Mungkung N.

ผู้เผยแพร่: Korean Electrochemical Society

ปีที่เผยแพร่ (ค.ศ.): 2019

Volume number: 14

Issue number: 2

หน้าแรก: 993

หน้าสุดท้าย: 1000

จำนวนหน้า: 8

นอก: 2093-8551

eISSN: 2093-8551

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85077392949&doi=10.33961%2fjecst.2019.00206&partnerID=40&md5=a1c6265d89195437e426608eab34449c

ภาษา: English-Great Britain (EN-GB)

ดูในเว็บของวิทยาศาสตร์ | ดูบนเว็บไซต์ของสำนักพิมพ์ | บทความในเว็บของวิทยาศาสตร์

บทคัดย่อ

A novel non-enzymatic oxalic acid (OA) sensor based on the platinum/carbon black-nickel-reduced graphene oxide (Pt/CBNi-rGO) nanocomposite is reported. The nanocomposites were prepared by the ethylene glycol reduction method. Their morphology and chemical composition were characterized by scanning electron microscopy (SEM), energy dispersive Xray spectroscopy (EDX) and transmission electron microscopy (TEM). The results clearly demonstrated the formation of the Pt/CB-Ni-rGO nanocomposite. The electrocatalytic activity of the Pt/CB-Ni-rGO electrode was investigated by cyclic voltammetry. It was determined that the appropriate amount of Pt enhanced the catalytic activity of Pt for oxalic acid electro-oxidation. Moreover, the modified electrode was determined to be highly selective for oxalic acid without interference from compounds commonly found in urine including uric acid and ascorbic acid. The chronoamperometric signal gave a wide linearity range of 20 μM-60 mM and the detection limit (3σ) was found to be 2.35 μM. The proposed method showed high selectivity, stability, and good reproducibility and could be used with micro-volumes of sample for the detection of oxalic acid. Finally, the oxalic acid content in artificial and control urine samples were successfully determined by our proposed electrode. © 2019, Korean Electrochemical Society. All rights reserved.

คำสำคัญ

Carbon black, Oxalic Acid, Platinum Nanoparticle, Reduced graphene oxide