Facile potentiostatic preparation of functionalized polyterthiophene-anchored graphene oxide as a metal-free electrocatalyst for the oxygen reduction reaction
作者:M. Halappa Naveen、Hui-Bog Noh、Md Shahriar Al Hossain、Jung Ho Kim、Yoon-Bo Shim
DOI:10.1039/c4ta06774f
日期:——
2′′-terthiophene (TBA) and 3′-(carboxylic acid)-2,2′:5′,2′′-terthiophene (TCA) were synthesized and polymerized with as-prepared GO to form complexes by a potential cycling method. The aminopyrimidyl groups on the poly(APT) backbone served as effective functional groups in the oxygen reduction reaction. The APT–GO complex was formed through hydrogen bonding and a ring-opening reaction of the epoxide group with
开发新型催化剂以实现高性能,具有成本效益的氧气还原对于燃料电池的商业化至关重要。我们在这里展示了功能化的聚对噻吩锚定的氧化石墨烯(GO)复合材料作为新的非金属催化剂进行氧还原反应的用途。包含单体3'-(2-氨基嘧啶基)-2,2':5',2''-对噻吩(APT),3'-(p的不同官能团-苯甲酸)-2,2':5',2''-对噻吩(TBA)和3'-(羧酸)-2,2':5',2''-对噻吩(TCA)合成并聚合通过潜在的循环方法与制备的GO形成络合物。聚(APT)主链上的氨基嘧啶基在氧还原反应中充当有效的官能团。APT-GO络合物是通过氢键和环氧基团与胺的开环反应形成的一个新的C-N键而形成的。观察到,聚合物基体中的C–N键参与了O 2到H 2 O的直接电催化还原。聚(APT–GO)复合材料对燃料穿越和长期电极表现出更好的耐受性稳定性优于市售的Pt / C电极。