使用多种溶剂：MeOH、EtOH、H2O 和白酒，通过多入口涡流混合器轻松合成金属-有机骨架 ZIF-67,Industrial & Engineering Chemistry Research

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使用多种溶剂：MeOH、EtOH、H2O 和白酒，通过多入口涡流混合器轻松合成金属-有机骨架 ZIF-67
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2022-05-30 , DOI: 10.1021/acs.iecr.2c00685
Chenxu Wang ₁ , Feng Yu _{1,

2,

3} , Ke Lu ₁ , Zhimou Wang ₁ , Jie Yu ₁ , Wentao Bao ₁ , Gang Wang ₁ , Banghua Peng ₁ , Xuhong Guo ₄

Affiliation

金属有机骨架（MOF）材料的传统制备方法包括直接混合法、溶剂热法和机械法。这些方法是通过数天的缓慢协调反应和不连续性进行的。目前，纯有机溶剂用于合成MOFs，导致MOF合成条件苛刻。因此，本研究采用多入口涡流混合器和 MeOH、EtOH、H ₂O 和白酒合成 Co-MOF。与传统的合成间歇法相比，它们可以解决宏观混合不均匀和材料进入微通道缓慢的问题，同时提供连续快速的工业放大倍率等特点。首次以白酒为溶剂合成MOF材料。白酒作为溶剂降低了MOF材料的合成条件，可以回用工业乙醇废水，方便MOF材料的合成。以白酒为溶剂碳化 ZIF-67-FNP-Baijiu 制备的催化剂 Co@NC-FNP-Baijiu 具有E_起始= 0.93 V _RHE和E _1/2 = 0.82 V _RHE，这仅次于以甲醇为溶剂制备的催化剂的氧还原反应性能。以Co@NC-FNP-白酒为正极催化剂组装的锌空气电池的开路电压、峰值功率密度和比容量与Pt/C电池相似。

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Facile Synthesis of Metal–Organic Framework ZIF-67 via a Multi-Inlet Vortex Mixer Using Various Solvents: MeOH, EtOH, H2O, and Baijiu

The traditional preparation methods for metal–organic framework (MOF) materials include direct mixing, solvothermal, and mechanical methods. These methods are conducted through several days of slow coordination reactions and discontinuities. Presently, pure organic solvents are used to synthesize MOFs, leading to harsh conditions for MOF synthesis. Therefore, this study used the multi-inlet vortex mixer and MeOH, EtOH, H₂O, and Baijiu to synthesize the Co-MOF. They can solve the problem of the uneven macromixing and slow penetration of materials into the microchannel compared to the traditional synthetic intermittent method, while providing continuous rapid industrial magnification and other characteristics. MOF materials were synthesized using Baijiu as a solvent for the first time. Baijiu as the solvent reduced the synthetic conditions of MOF materials and allowed for the reuse of industrial ethanol wastewater, making the synthesis of MOF materials convenient. The catalyst, Co@N-C-FNP-Baijiu, prepared by carbonizing ZIF-67-FNP-Baijiu using Baijiu as the solvent has E_onset = 0.93 V_RHE and E_1/2 = 0.82 V_RHE, which is second to the oxygen reduction reaction performance of the catalyst prepared using MeOH as the solvent. The open-circuit voltage, peak power density, and specific capacity of Zn-air batteries assembled with Co@N-C-FNP-Baijiu as cathode catalysts are similar to those of Pt/C batteries.

更新日期：2022-05-30

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