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Stöber synthesis of tannic acid–formaldehyde resin polymer spheres and their derived carbon nanospheres and nanocomposites for oxygen reduction reaction
Journal of Colloid and Interface Science ( IF 9.9 ) Pub Date : 2018-05-23 , DOI: 10.1016/j.jcis.2018.05.070
Minmin Liu , Chao Cai , Jian Li , Jing Zhao , Wei Teng , Rui Liu

We report a facile Stöber approach to prepare polyphenol-based resin polymer spheres using tannic acid and formaldehyde as reactants. The tannic acid-formaldehyde (TAF) spheres directly convert into carbon spheres with monodispersity and structural integrity. In addition, TAF-Fe complex spheres are carbonized into Fe nanoparticles (NPs) decorated carbon spheres ([email protected]), which are successfully applied as electrocatalysts for oxygen reduction reaction (ORR) in alkaline media. The electrocatalyst exhibits similar catalytic activity but better methanol tolerance performance to 20% commercial Pt/C in alkaline media. This feasible strategy presents a novel precursor for fabricating and tailoring the structure, composition, and size of polyphenol resin and derived carbon-based materials for energy conversion and storage.



中文翻译:

用于氧还原反应的单宁酸-甲醛树脂聚合物球及其衍生的碳纳米球和纳米复合材料的斯托伯合成

我们报告了一种简便的Stöber方法,以鞣酸和甲醛为反应物来制备多酚基树脂聚合物球。单宁酸-甲醛(TAF)球直接转化为具有单分散性和结构完整性的碳球。此外,TAF-Fe络合物球被碳化成装饰有Fe纳米颗粒(NPs)的碳球([受电子邮件保护]),已成功用作碱性介质中氧还原反应(ORR)的电催化剂。在碱性介质中,该电催化剂显示出相似的催化活性,但对20%的商业Pt / C具有更好的甲醇耐受性。这种可行的策略提出了一种新颖的前体,用于制造和调整多酚树脂和衍生的基于碳的材料的结构,组成和尺寸,以进行能量转换和存储。

更新日期:2018-05-23
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