铁、氮掺杂石墨烯/碳黑复合材料的制备及氧还原电催化性能

以高含氮量的2-氨基咪唑为氮源,三氯化铁为铁源,高比表面积的KJ600碳黑为载体,通过水热法制得氨基咪唑聚合物前驱体,再经二次高温热处理,制得石墨烯/碳黑复合材料.透射电镜表征显示该材料为石墨烯纳米片与碳黑颗粒的复合结构.BET表征表明这是一种多孔结构,具有很高的比表面积（882 m~2·g~（-1））,这有利于暴露更多活性位点,并促进传质.XRD证实催化剂中存在石墨烯,且石墨烯结构是在第一次热处理过程中形成的.电化学测试表明,该催化剂在酸性和碱性介质中都具有很高的氧还原电催化活性和低H_2O_2产率,并且在碱性介质中对甲醇小分子的抗毒化性能明显优于商业Pt/C催化剂,展示出在实际燃料电池系统...

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Published in电化学 Vol. 22; no. 1; pp. 25 - 31
Main Author 陈驰 周志有 张新胜 孙世刚
Format Journal Article
LanguageChinese
Published 29.02.2016
Subjects
2-氨基咪唑
N掺杂石墨烯
氧气还原反应
石墨烯/碳黑复合结构
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Abstract 以高含氮量的2-氨基咪唑为氮源,三氯化铁为铁源,高比表面积的KJ600碳黑为载体,通过水热法制得氨基咪唑聚合物前驱体,再经二次高温热处理,制得石墨烯/碳黑复合材料.透射电镜表征显示该材料为石墨烯纳米片与碳黑颗粒的复合结构.BET表征表明这是一种多孔结构,具有很高的比表面积（882 m~2·g~（-1））,这有利于暴露更多活性位点,并促进传质.XRD证实催化剂中存在石墨烯,且石墨烯结构是在第一次热处理过程中形成的.电化学测试表明,该催化剂在酸性和碱性介质中都具有很高的氧还原电催化活性和低H_2O_2产率,并且在碱性介质中对甲醇小分子的抗毒化性能明显优于商业Pt/C催化剂,展示出在实际燃料电池系统中的应用潜力.
AbstractList 以高含氮量的2-氨基咪唑为氮源,三氯化铁为铁源,高比表面积的KJ600碳黑为载体,通过水热法制得氨基咪唑聚合物前驱体,再经二次高温热处理,制得石墨烯/碳黑复合材料.透射电镜表征显示该材料为石墨烯纳米片与碳黑颗粒的复合结构.BET表征表明这是一种多孔结构,具有很高的比表面积（882 m~2·g~（-1））,这有利于暴露更多活性位点,并促进传质.XRD证实催化剂中存在石墨烯,且石墨烯结构是在第一次热处理过程中形成的.电化学测试表明,该催化剂在酸性和碱性介质中都具有很高的氧还原电催化活性和低H_2O_2产率,并且在碱性介质中对甲醇小分子的抗毒化性能明显优于商业Pt/C催化剂,展示出在实际燃料电池系统中的应用潜力.
Author 陈驰 周志有 张新胜 孙世刚
AuthorAffiliation 华东理工大学化学工程联合国家重点实验室,化工学院,上海200237 厦门大学固体表面物理化学国家重点实验室,化学化工学院,福建厦门361005
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DocumentTitleAlternate Synthesis of Fe, N-doped Graphene/Carbon Black Composite with High Catalytic Activity for Oxygen Reduction Reaction
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Notes CHEN Chi, ZHOU Zhi-you, ZHANG Xin-sheng, SUN Shi-gang（1. State Key Laboratory of Chemical Engineering, East China University of Scienee and Technology, Shanghai 200237, China; 2. State Key Laboratory of Physical Chemistry of Solid Surfaces,Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China）
Oxygen reduction reaction （ORR） is a bottleneck for improving the efficiency of proton-exchange membrane fuel cells as a cathode reaction due to its sluggish kinetics. The exploitation of low cost and high performance non-precious metal catalysts such as Fe/N/C based materials toward ORR has attracted extensive attentions. In this work, the Fe, N-doped graphene nanosheets/carbon black composite was prepared by hydrothermal polymerization and followed by a twice-heat-treatment procedure using 2-aminoimidazole as an N precursor, FeC13 as an Fe precursor and KJ600 carbon black as a support. The TEM images revealed that the graphene nanosheets were separated b
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Snippet 以高含氮量的2-氨基咪唑为氮源,三氯化铁为铁源,高比表面积的KJ600碳黑为载体,通过水热法制得氨基咪唑聚合物前驱体,再经二次高温热处理,制得石墨烯/碳黑复合材料.透射电镜表征显示该材料为石墨烯纳米片与碳黑颗粒的复合结构.BET表征表明这是一种多孔结构,具有很高的比表面积（882...
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StartPage 25
SubjectTerms 2-氨基咪唑
N掺杂石墨烯
氧气还原反应
石墨烯/碳黑复合结构
Title 铁、氮掺杂石墨烯/碳黑复合材料的制备及氧还原电催化性能
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