MnO-carbon nanofiber composite material toward electro-chemical N-2 fixation under ambient conditions
MnO-carbon nanofiber composite material toward electro-chemical N-2 fixation under ambient conditions
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常温条件下电化学 N-2 固定的 MnO-碳纳米纤维复合材料
DOI：
10.1039/c9nj00869a
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发表时间：
2019
影响因子：
3.3
通讯作者：
Ding Caifeng
中科院分区：
文献类型：
--
作者：
Zheng Xiangjiang;Zhang Zhenhua;Li Xuemei;Ding Caifeng
常温下的电催化氮气还原反应(NRR)被认为是替代Haber-Bosch法人工固氮制氨的一种很有前途的方法。在本论文中，我们通过静电纺丝的方法制备了一维纳米晶包裹在碳纳米纤维中的MnO-CNF。在0.1M Na2SO4溶液中，MnO-CNF是一种性能优良的非贵金属NRR合成氨催化剂，在常温下法拉第效率为1.52%。值得注意的是，它的NH3生成率高达35.9mgg·h-μ-1mgCAT-−-1，并在电解和回收试验中表现出优异的耐久性。
The electrocatalytic nitrogen reduction reaction (NRR) under ambient conditions is regarded as a promising substitute approach to the Haber–Bosch process for artificial N2 fixation to NH3. In this communication, we constructed well-defined one-dimensional MnO nanocrystals encapsulated in carbon nanofibers (MnO–CNF) via an electrospinning method. MnO–CNF behaves as an excellent non-noble-metal NRR electrocatalyst for NH3 synthesis with a faradaic efficiency of 1.52% in 0.1 M Na2SO4 solution under ambient conditions. Remarkably, it attains a high NH3 formation rate of 35.9 μg h−1 mgcat−1 and also shows excellent durability during electrolysis and recycling tests.