乙二胺四甲叉膦酸辅助合成Pd立方块及其对甲酸的电催化
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- 英文论文题名：Ethylenediamine-tetramethylene phosphonic acid assisted synthesis of palladium nanocubes and their electrocatalytic application for formic acid oxidation
- 论文作者：赵若鹏 ; 张庆文 ; 史鑫浩 ; 胡永奇 ; 戚伟业 ; 王毅
- 英文论文作者：Ruopeng Zhao ; Qingwen Zhang ; Xinhao Shi ; Yongqi Hu ; Weiye Qi ; Yi Wang ; Wenzhou Institute of Biomaterials and Engineering
- 年：2016
- 作者机构：温州生物材料与工程研究所;
- 论文关键词：钯 ; 立方块 ; 电催化 ; 甲酸氧化
- 英文论文关键词：palladium ; nanocubes ; electrocatalytic ; formic acid oxidation
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第四十二分会：能源纳米材料物理化学
- 语种：中文
- 分类号：O643.36
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第四十二分会 ; 能源纳米材料物理化学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：230k
- 原文格式：D
- 会议级别：全国
摘要
Pd纳米晶的形貌对其催化活性和选择性起到非常重要的作用~([1])。在众多不同的形貌中,表面富有{100}晶面的Pd立方块对甲酸氧化有着非常独特的作用,原因在于Pd的{100}晶面在三种低指数晶面中对甲酸氧化的催化活性最高(Pd{100}>Pd{111}>Pd{110})~([2])。在本工作中,我们报道了一种全新高效的一步合成Pd纳米立方块的方法。在合成步骤中,乙二胺四甲叉膦酸和碘离子对Pd形貌的控制起到关键性作用。制备得的Pd纳米立方块相比商业化Pd黑对甲酸催化有着杰出的催化活性(图1B)和稳定性这归功于其表面大量的{100}晶面及粒径的微小(图1A)。
The shape of Pd nanocrystals plays a significant role in its catalytic activity and selectivity. Among various shapes, the {100}-enclosed Pd nanocubes are of particular interest in the formic acid oxidation. Because the {100} facet of Pd shows the highest catalytic activity among the three low-index facets(Pd{100}>Pd{111}>Pd{110})~([2]). In this work, we report a new and efficient strategy for the one-step synthesis of Pd nanocubes. In this strategy, the Ethylenediamine-tetramethylene phosphonic acid and iodide ions play important role in the final morphology of Pd nanocrystals. The as-prepared Pd nanocubes demonstrate an excellent activity(Figure 1B) and stability toward formic acid oxidation reaction due to the abundant {100} facets and small particle size of Pd nanocubes(Figure 1A).
The shape of Pd nanocrystals plays a significant role in its catalytic activity and selectivity. Among various shapes, the {100}-enclosed Pd nanocubes are of particular interest in the formic acid oxidation. Because the {100} facet of Pd shows the highest catalytic activity among the three low-index facets(Pd{100}>Pd{111}>Pd{110})~([2]). In this work, we report a new and efficient strategy for the one-step synthesis of Pd nanocubes. In this strategy, the Ethylenediamine-tetramethylene phosphonic acid and iodide ions play important role in the final morphology of Pd nanocrystals. The as-prepared Pd nanocubes demonstrate an excellent activity(Figure 1B) and stability toward formic acid oxidation reaction due to the abundant {100} facets and small particle size of Pd nanocubes(Figure 1A).
引文
[1]J.Gong,F.Zhou,Z.Li and Z.Tang,Chem.Commun,2013,49,4379.
[2]C.-L.Lee and H.-P.Chiou,Appl.Catal.B-Environ.,2012,117,204.
[2]C.-L.Lee and H.-P.Chiou,Appl.Catal.B-Environ.,2012,117,204.