Shape Engineering of Biomass‐Derived Nanoparticles from Hollow Spheres to Bowls through Solvent‐Induced Buckling,ChemSusChem

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Shape Engineering of Biomass‐Derived Nanoparticles from Hollow Spheres to Bowls through Solvent‐Induced Buckling
ChemSusChem ( IF 7.5 ) Pub Date : 2018-07-23 , DOI: 10.1002/cssc.201801215
Chunhong Chen ₁ , Xuefeng Li ₁ , Jiang Deng ₁ , Zhe Wang ₁ , Yong Wang ₁

Affiliation

The realization of asymmetric hollow carbonaceous nanostructures remains a great challenge, especially when biomass is chosen as the carbon resource through hydrothermal carbonization (HTC). Herein, a simple and straightforward solvent‐induced buckling strategy is demonstrated for the synthesis of asymmetric spherical and bowl‐like carbonaceous nanomaterials. The formation of the bowl‐like morphology was attributed to the buckling of the spherical shells induced by the dissolution of the oligomers. The bowl‐like particles prepared through this solvent‐driven approach demonstrated a well‐controlled morphology and a uniform particle size of approximately 360 nm. The obtained nanospheres and nanobowls were loaded with CoS₂ nanoparticles to act as heterogeneous catalysts for the selective hydrogenation of aromatic nitro compounds. As expected, the CoS₂/nanobowls catalyst showed good tolerance to a wide scope of reducible groups and afforded both high activity and selectivity in almost all the tested substrates.

中文翻译：

通过溶剂诱导屈曲从空心球到碗的生物质纳米颗粒的形状工程

非对称空心碳质纳米结构的实现仍然是一个巨大的挑战，特别是当通过水热碳化（HTC）选择生物质作为碳资源时。本文展示了一种简单而直接的溶剂诱导屈曲策略，用于合成不对称球形和碗状碳纳米材料。碗状形态的形成归因于低聚物的溶解引起的球形壳的屈曲。通过这种溶剂驱动的方法制备的碗状颗粒表现出良好的形貌控制，并且粒径约360 nm。所获得的纳米球和纳米碗中装有CoS ₂纳米颗粒充当用于芳香族硝基化合物选择性加氢的非均相催化剂。如所期望的，CoS ₂ /纳米碗催化剂对宽范围的可还原基团表现出良好的耐受性，并且几乎在所有测试的底物中都提供了高活性和选择性。

更新日期：2018-07-23

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