Vanadium and carbon composite electrocatalyst for oxygen reduction reaction

被引：3

作者：

Zarmehri, Ehsan ^{[1
]}

Raudsepp, Ragle ^{[1
]}

Danilson, Mati ^{[2
]}

Sutka, Andris ^{[3
]}

Kruusenberg, Ivar ^{[1
]}

机构：

[1] NICPB, Akad Tee 23, EE-12618 Tallinn, Estonia

[2] Tallinn Univ Technol, Dept Mat & Environm Technol, Ehitajate Tee 5, EE-19086 Tallinn, Estonia

[3] Riga Tech Univ, Fac Mat Sci & Appl Chem, Res Lab Funct Mat Technol, P Valdena 3-7, LV-1048 Riga, Latvia

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2023年 / 307卷

关键词：

Fuel cell; ORR; Carbon; Vanadium; Phthalocyanine; MICROBIAL FUEL-CELL; METAL PHTHALOCYANINES; IRON PHTHALOCYANINE; CATALYTIC-ACTIVITY; TRANSITION-METALS; CATHODE CATALYSTS; COUNTER ELECTRODE; HIGHLY EFFICIENT; SINGLE-ATOM; NITROGEN;

D O I：

10.1016/j.matchemphys.2023.128162

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Non-noble metal catalysts (NNMCs) are a promising alternative to platinum-based catalysts towards the largescale commercial of hydrogen fuel cells and metal-air batteries. Improving the kinetics of oxygen reduction reaction (ORR) and reducing the price of catalysts for fuel cells and batteries has long time been of interest to researchers. NNMCs are a good choice for this purpose and have been studied extensively. The present study offers a low cost and straightforward method to fabricate inexpensive and durable ORR catalysts. By using vanadyl phthalocyanine, a promising carbon nanotube supported catalyst was synthesized, which shows competitive characteristics to platinum catalyst. Vanadium and nitrogen were co-doped on multiwall carbon nanotubes (MWCNTs) during a high temperature pyrolysis in argon atmosphere. Scanning and transmission electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy and X-ray diffraction analysis were employed for physical characterization. V-N co-doped catalysts were electrochemically tested using the rotating disk electrode (RDE) setup in alkaline, neutral and acidic media.

引用

页数：10

共 85 条

[1] Preparation and characterization of V2O3 micro-crystals via a one-step hydrothermal process [J].