We report the development of MOF-derived nitrogen-doped carbon/ Co 3 O 4 nanocomposites (Co 3 O 4 @NCs) with core−shell structures as an efficient electrocatalyst for the artificial nitrogen fixation at room temperature and atmospheric pressure in 0.05 M H 2 SO 4 . It exhibits a high NH 3 yield of 42.58 μg h −1 mg cat.−1 and a faradaic efficiency of 8.5% at −0.2 V versus reversible hydrogen electrode. Experimental results show that the great N 2 reduction reaction performance of Co 3 O 4 @NCs originates from the synergistic effects of N-doped carbon and Co 3 O 4 with significant oxygen vacancy. In addition, we speculate that the core−shell structure can further enhance the electrochemical activity for producing NH 3 .

MOF-derived C@NiO@Ni are proposed as an efficient electrocatalyst for N2 reduction reaction in alkaline media. Abundant oxygen vacancies and NiO/Ni interfaces can act as active sites for adsorbing nitrogen and proton, respectively.

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The vacancies of semiconductor have been proven to be effective active sites for photocatalytic nitrogen fixation, but what about the role of defects in MOF materials? Here we report the...

Excessive discharge of nitrate pollutants has caused an imbalance in the nitrogen cycle, which has threatened human health and ecosystems. Clean electrocatalytic nitrate reduction technology can convert nitrate into high value-added ammonia to control water pollution, truly realizing “turning waste into treasure”. This review highlights the latest mechanisms proposed by combining in situ characterization and discusses the various intermediates produced during the reaction process and the key steps that determine the reaction rate. Meanwhile, four common catalyst synthesis strategies are systematically summarized. These strategies have exhibited preeminent results in terms of conductivity and active sites and inhibition of side effects. Finally, the challenges and difficulty of electrocatalytic nitrate reduction into ammonia (NRA) in the process of development and the main development direction in the future are discussed. The engineering strategies for increasing the electrocatalytic stability and performance are also discussed. This review aims to provide guidance for efficient electrocatalytic nitrate conversion and promotes the advancement of sustainable nitrogen chemistry.

The Layered double hydroxides (LDHs) have been shown to be efficient photocatalysts for nitrogen fixation reactions. However, the effect of interlayer anions on catalytic performance has not been reported yet....

Metal node substitution in metal organic frameworks is an efficient strategy to enhance photocatalytic properties. Herein, bimetallic CeZr5-MOFs UiO-66 photocatalysts were successfully synthesized by partial replacing Zr with Ce for...

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