Magnetically Induced Continuous CO2 Hydrogenation Using Composite Iron Carbide Nanoparticles of Exceptionally High Heating Power,Angewandte Chemie International Edition

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Magnetically Induced Continuous CO2 Hydrogenation Using Composite Iron Carbide Nanoparticles of Exceptionally High Heating Power
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2016-11-22 , DOI: 10.1002/anie.201609477
Alexis Bordet ₁ , Lise-Marie Lacroix ₁ , Pier-Francesco Fazzini ₁ , Julian Carrey ₁ , Katerina Soulantica ₁ , Bruno Chaudret ₁

Affiliation

The use of magnetic nanoparticles to convert electromagnetic energy into heat is known to be a key strategy for numerous biomedical applications but is also an approach of growing interest in the field of catalysis. The heating efficiency of magnetic nanoparticles is limited by the poor magnetic properties of most of them. Here we show that the new generation of iron carbide nanoparticles of controlled size and with over 80 % crystalline Fe_2.2C leads to exceptional heating properties, which are much better than the heating properties of currently available nanoparticles. Associated to catalytic metals (Ni, Ru), iron carbide nanoparticles submitted to magnetic excitation very efficiently catalyze CO₂ hydrogenation in a dedicated continuous‐flow reactor. Hence, we demonstrate that the concept of magnetically induced heterogeneous catalysis can be successfully applied to methanation of CO₂ and represents an approach of strategic interest in the context of intermittent energy storage and CO₂ recovery.

中文翻译：

使用异常高的加热功率的复合碳化铁纳米粒子进行磁感应连续CO2加氢

已知使用磁性纳米颗粒将电磁能转化为热量是许多生物医学应用的关键策略，但也是催化领域越来越引起人们关注的一种方法。磁性纳米粒子的加热效率受到大多数纳米粒子不良的磁性的限制。在这里，我们显示了具有受控尺寸且具有超过80％结晶Fe _2.2 C的新一代碳化铁纳米颗粒，可提供出色的加热性能，其性能远远优于目前可用的纳米颗粒。与催化金属（Ni，Ru）相关联的碳化铁纳米颗粒，能够非常有效地磁激发催化CO _2。在专用连续流反应器中进行氢化。因此，我们证明了磁感应非均相催化的概念可以成功地应用于CO _2的甲烷化，并且代表了在间歇性储能和CO ₂回收方面具有战略意义的方法。

更新日期：2016-11-22

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