CuFe, CuCo and CuNi nanoparticles as catalysts for higher alcohol synthesis from syngas: a comparative study

Kang Xiao; Xingzhen Qi; Zhenghong Bao

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CuFe, CuCo and CuNi nanoparticles as catalysts for higher alcohol synthesis from syngas: a comparative study

机译：CUFE，CUCO和CUNI纳米颗粒作为合成剂的较高酒精合成的催化剂：一项比较研究

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Higher alcohol synthesis (HAS) from syngas has attracted much attention and Cu-modified Fischer-Tropsch (FT) catalysts exhibited promising catalytic performance for HAS. In this paper, three model modified FT catalysts, CuFe, CuCo and CuNi nanoparticles, were synthesized by co-reduction method for the comparison of their performance in HAS. XRD, TEM and EDS characterizations for spent samples indicate that severe phase separation of Cu and Fe took place for CuFe, and Cu@Co core-shell structure formed with co-existence of Cu-Co alloy nanoparticles for CuCo, but only Cu-Ni alloys were observed for CuNi. Such structural change led to different performance in higher alcohol synthesis. As a result, CuFe mainly kept the original FT property of Fe, CuCo showed different performance from Co, and CuNi performed as methanol catalyst.

机译：较高的合成酒精合成（HAS）引起了很多关注，Cu修饰的Fischer-Tropsch（FT）催化剂表现出有希望的催化性能。在本文中，通过共同还原方法合成了三种模型修饰的FT催化剂，CUFE，CUFO和CUNI纳米颗粒，以比较其在HAS中的性能。 XRD，TEM和EDS的表征表明CUFE发生了严重的Cu和Fe相分离，而Cu@Co Core-shell结构则形成了Cu-Co-Co合金纳米颗粒的共存，但仅Cu-ni 观察到CUNI合金。这种结构性变化导致较高酒精合成的性能不同。结果，CUFE主要保留了Fe的原始FT特性，CUCO表现出与CO的不同性能，CUNI表现为甲醇催化剂。

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来源
《Catalysis science & technology》 |2013年第6期|1591-1602|共12页
作者
Kang Xiao; Xingzhen Qi; Zhenghong Bao;
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作者单位

CAS Key Laboratory of Lew-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, P. R China.;

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正文语种英语
中图分类汉语教学;
关键词
Iron; REDUCTION METHODS; NanoparticlesSynthesis gasCatalystsPhase separationsynthesisCopper cobalt alloyshigh level synthesis;

机译：铁;还原方法;纳米无神经合成的气体催化剂分离菌株钴合成级合成;

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CuFe, CuCo and CuNi nanoparticles as catalysts for higher alcohol synthesis from syngas: a comparative study

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