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2篇 您的检索式:作者名="Samira Adimi"
    题名 作者 年代 出处 被引量
1Co_(3)Mo_(3)N—An efficient multifunctional electrocatalyst显示文摘Efficient catalysts are required for both oxidative and reductive reactions of hydrogen and oxygen in sustainable energy conversion devices.However,current precious metal-based electrocatalysts do not perform well across the full range of reactions and reported multifunctional catalysts are all complex hybrids.Here,we show that singlephase porous Co3Mo3N prepared via a facile method is an efficient and reliable electrocatalyst for three essential energy conversion reactions;oxygen evolution reaction(OER),oxygen reduction reaction(ORR),and hydrogen evolution reaction(HER)in alkaline solutions.Co3-Mo3N presents outstanding OER,ORR,and HER activity with high durability,comparable with the commercial catalysts RuO2 for OER and Pt/C for ORR and HER.In practical demonstrations,Co3Mo3N gives high specific capacity(850 mA h gZn^(-1) at 10 mA cm^(-2))as the cathode in a zinc-air battery,and a low potential(1.63 V at 10 mA cm^(-2))used in a water-splitting electrolyzer.Availability of Co and Mo d-states appear to result in high ORR and HER performance,while the OER properties result from a cobalt oxide-rich activation surface layer.Our findings will inspire further development of bimetallic nitrides as cost-effective and versatile multifunctional catalysts that will enable scalable usage of electrochemical energy devices.Yao Yuan Samira Adimi Tiju Thomas Jiacheng Wang Haichuan Guo Jian Chen J.Paul Attfield Francis J.DiSalvo Minghui Yang 2021The Innovation2021,2,2:2
2Metal-organic frameworks-derived hierarchical ZnO structures as efficient sensing materials for formaldehyde detection显示文摘Semiconducting metal oxides have been considered as effective approach for designing highperformance chemical sensing materials.In this paper,a kind of metal-organic frameworks ZIF-8 was used as sacrificed template to prepare porous ZnO hollow nanocubes for the application in gas sensing.It is found that changing calcination temperature and solvent can greatly influence the morphology of the material,which finally affects the gas sensing performance.Acetylene-sensing properties of the sensors were investigated in detail.It can be clearly seen that the material used methanol as reaction solvent with the decomposition at 350℃for 2 h(ZnO-350-M)showed the optimal formaldehyde-sensing behaviors compared with other materials prepared in this experiment.The dynamic transients of the ZnO-350-M-based sensors demonstrated a high response value(about 10),fast response and recovery rate(4 s and 4 s,respectively)and good selectivity towards 100 ppm(part per million)formaldehyde as well as a low detectable limit(1 ppm).As exemplified for the sensing inve stigation towards formaldehyde,the porous ZnO hollow nanocubes showed a significantly improved chemical sensitivity due to the highly syne rgistic effects from the well exposed surfaces,defect states and the robust ZnO.Nan Zhang Luming Yan Yang Lu Yizhuo Fan Sijia Guo Samira Adimi Dali Liu Shengping Ruan 2020Chinese Chemical Letters2020,31,8:1
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