Electro‐Catalytic Behavior of Silver Nanoparticles Embedded in Potato and Tapioca Starch for Oxygen Reduction Reaction

• Published in: Die Stärke Vol. 71; no. 1-2
• Main Authors: Kalantari, Katayoon, Afifi, Amalina M., Nia, Pooria Moozarm, Izadiyan, Zahra, Kalantari, Alireza, Abouzari‐lotf, Ebrahim
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 01.01.2019
• Subjects: bio‐nanocomposite; Catalysis; catalysts; Chemical reduction; electrochemistry; Electrode materials; electrodes; energy; Gold; Nanoparticles; nanosilver; Oxygen; oxygen reduction reaction; Oxygen reduction reactions; Potatoes; Reproducibility; Silver; silver nanoparticles; Stability; standard deviation; Starch; Starches; Surface plasmon resonance; Tapioca; transmission electron microscopy
• ISSN: 0038-9056; 1521-379X
• DOI: 10.1002/star.201800038

The present work demonstrates an eco‐friendly and facile method for the synthesis of tapioca and potato starches incorporated by silver nanoparticles hereafter named (T‐Ag/NPs) and (P‐Ag/NPs), respectively. The analysis of UV–vis showed the appearance of surface plasmon resonance. The TEM analysis shows the formation of highly distributed Ag/NPs with an average diameter and standard deviation of 19.65 ± 2.45 and 12.27 ±7.39 nm for (P‐Ag/NPs) and (T‐Ag/NPs), respectively. The prepared (T‐Ag/NPs) show remarkable potential applicability in energy as low‐cost electrode material compared with (P‐Ag/NPs). They are used as a non‐precious catalyst for oxygen reduction reaction (ORR) in the alkaline medium. The presence of starch promotes long‐term stability up to 1000 cycles and avoid the dissolution and agglomeration of silver nanoparticles. The (T‐Ag/NPs) show significant stability and reproducibility. The authors present a facile method for the synthesis of tapioca and potato starches incorporated by silver nanoparticles with an average diameter of 19.65 and 12.27 nm, respectively. The (T‐Ag/NPs) show remarkable potential applicability in energy as low‐cost electrode material compared with (P‐Ag/NPs). The presence of starch promotes long‐term stability up to 1000 cycles and avoids the dissolution and agglomeration of silver nanoparticles.