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J. Cent. South Univ. (2020) 27: 1846-1860 DOI: https://doi.org/10.1007/s11771-020-4412-0 Fracture evolution in coalbed methane reservoirs subjected to liquid nitrogen thermal shocking YAN Hong(严红... and Springer-Verlag GmbH Germany, part of Springer Nature 2020 Abstract: Thermal shocking effect occurs when the coalbed methane (CBM) reservoirs meet liquid nitrogen (LN2) of extremely low temperature......
PVP-assisted preparation of nitrogen doped mesoporous carbon materials for supercapacitorsJuan Du1,Aibing Chen1,Yue Zhang1,Shuang Zong2,3,Haixia Wu1,Lei Liu11. College of Chemical and Pharmaceutical... Sustainability,University of South Africa摘 要:The rich porous structure, high surface area and surface doping make nitrogen doping mesoporous carbon materials......
Separation of rare earth elements from sulfate leach liquor by heterocyclic nitrogen compound OMNEYA M.El Hussaini1,NBIL T.El Hazek1,GHADA M.Mahmoud1,AHMAD M.Farag2 (1.Nuclear Materials Authority, P.O. Box 530 El Maadi, Cairo Egypt;2.Chemistry department, Faculty of Science, Cairo University, Giza, Egypt) Abstract:Separation of rare earth elements by solvent extraction has actually been widely......
Trans. Nonferrous Met. Soc. China 25(2015) 597-607 Treatment of copper-rich gold ore by cyanide leaching, ammonia pretreatment and ammoniacal cyanide leaching A. D. BAS, E. KOC, Y. E. YAZICI, H... September 2014 Abstract: The treatment of a copper sulphide-bearing gold ore by direct cyanide leaching, ammonia pretreatment and ammoniacal cyanide leaching was investigated. Dissolution behaviour of gold......
Modification of Cu/ZSM-5 catalyst with CeO2 for selective catalytic reduction of NOx with ammonia刘雪松1,2,吴晓东1,2,翁端1,21. Key Laboratory of Advanced Materials of Ministry of Education, School..., but the high-temperature activity was weakened. The catalysts were characterized by X-ray diffraction(XRD), nitrogen physisorption, inductively coupled plasma optical emission spectrometry(ICP-OES......
Modification of Cu/ZSM-5 catalyst with CeO2 for selective catalytic reduction of NOx with ammonia刘雪松1,2,吴晓东1,2,翁端1,21. Key Laboratory of Advanced Materials of Ministry of Education, School..., but the high-temperature activity was weakened. The catalysts were characterized by X-ray diffraction(XRD), nitrogen physisorption, inductively coupled plasma optical emission spectrometry(ICP-OES......
Nitrogen Deficient Graphitic Carbon Nitride as Anodes for Lithium-ion Batteries李线线1,谭铁宁2,ZHANG Jian1,ZHANG Nan1,HE Jianwei1,HAN Wenmiao1,王雅东1,PAN Mu11. State Kay Laboratory of Advanced Technology... to overcome the problem that the low conductivity and high content of graphitic N will lead to serious irreversible capacity loss,magnesiothermic denitriding method was employed to fabricate nitrogen......
at stationary phase increased by 26% and ammonia produced by mutant bacteria increased by 12%. Higher activity of bacteria leads to a higher copper extraction rate. The bioleaching performance... is more effective than ammonia leaching and copper extraction rate with mutant bacteria was 21.1% higher than that by ammonia leaching under the same condition. Key words: ultraviolet mutagenesis......
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