- 羅民 教授
- 寧夏大學
- 網(wǎng)址: luomin.polymer.cn 訪問量:508645
- 通信地址:寧夏銀川市西夏區(qū)賀蘭山西路539號
- 郵編:750021
- 電話:0951-2062004
- 傳真:martinluo
- Email:[email protected]
關(guān)鍵字:N2 electrochemical reduction
論文來源:期刊
具體來源:Sustainable Energy &Fuels,Accepted
發(fā)表時間:2019年
Today, industrial ammonia synthesis mainly depends on the Haber-Bosch process which causes a lot of energy consumption and huge CO2 emissions.Electrochemical N2 reduction reaction (NRR) is considered as a more sustainable and environmentally benign alternative to produce ammonia, but requires efficient catalyst to overcome the difficulty of N2 activation. In this work, we report that MOF-derived C@NiO@Ni microtubes behave as a high-efficiency electrocatalyst in 0.1 M KOH electrolyte. This electrocatalyst achieves a high NH3 yield of 43.15 μg h-1 mg-1cat. and a Faradaic efficiency of 10.9% at -0.7 V vs. reversible hydrogen electrode. Experimental results indicate the excellent NRR performance originates from the oxygen vacancies in NiO. Moreover, abundant NiO/Ni interfaces are conductive to proton adsorption and further enhance the NRR performance