Carbon-coated Cu-Co bimetallic nanoparticles as selective and recyclable catalysts for production of biofuel 2,5-dimethylfuran
Carbon-coated Cu-Co bimetallic nanoparticles as selective and recyclable catalysts for production of biofuel 2,5-dimethylfuran
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碳包覆铜钴双金属纳米粒子作为选择性和可回收催化剂用于生产生物燃料 2,5-二甲基呋喃
DOI：
10.1016/j.apcatb.2016.07.004
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发表时间：
2017-01-01
影响因子：
22.1
通讯作者：
Yuan, Guoqing
中科院分区：
文献类型：
--
作者：
Chen, Bingfeng;Li, Fengbo;Yuan, Guoqing
用聚乙二醇包覆双金属氧化物前驱体，通过直接加热处理制备了包覆碳层的铜钴双金属纳米粒子。所合成的纳米催化剂在5-羟甲基呋喃的化学选择性氢解合成2，5-二甲基呋喃中表现出良好的催化性能。钴基催化剂表现出比铜基催化剂更高的催化性能。2，5-二甲基呋喃的产率最高，为99.4%。用透射电子显微镜、X射线衍射仪和X射线光电子能谱对双金属纳米催化剂进行了详细的表征。双金属纳米颗粒被碳壳包裹，可以保护它们免受氧化和失活。在六次循环试验中，催化剂的活性和选择性保持不变。两种金属组份之间的协同作用有助于提高催化性能。(C)2016爱思唯尔B.V.保留所有权利。
Cu-Co bimetallic nanoparticles coated with carbon layers have been developed through direct heating treatment of bimetallic oxide precursors incipiently deposited with polyethene glycol. The as-synthesized nanocatalyst performs excellently in chemoselective hydrogenolysis of 5-hydroxymethylfurfural to 2,5-dimethylfuran. The Co-based catalysts exhibit higher performance than Cu-based catalysts. Cu-Co@C (Cu:Co = 1:3) shows the highest yield of 2,5-dimethylfuran (99.4%). Bimetallic nanocatalysts are detailedly characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The bimetallic nanoparticles are entrapped by carbon shells that can protect them from oxidation and deactivation. The catalytic activity and selectivity are kept constant in a six run recycling test. The synergistic effect between two metal components is helpful to enhance catalytic performance. (C) 2016 Elsevier B.V. All rights reserved.