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Catalytic combustion of soot over Ru-doped mixed oxides catalystsL.F.Nascimento,R.F.Martins,O.A.SerraDepartment of Chemistry,Faculdade de Filosofia,Ciências e Letras de Ribeir?o Preto,University of S... in the operation range of diesel exhausts(270–400 oC). Here, we used the sol-gel method to synthesize catalysts based on mixed oxides(ZnO:CeO2) deposited on cordierite substrates, and modified by ruthenium......
Reduction of chromium oxides in stainless steel dustYan-ling Zhang,Wen-ming Guo,Xin-lei JiaState Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing摘 要:The recovery of metal oxides from stainless steel dust using C(graphite), SiFe, and Al as reductants was investigated under various conditions. The apparent distribution......
of low-concentration sulfur dioxide. Key words: stibnite; low-temperature; fused salt; sulfur fixing; clean metallurgy 基金项目:国家自然科学基金资助项目(50804056,51174237)；湖南有色集团－中南大学有色金属研究基金资助 收稿日期:2011-09-16；修订日期......
middle oxide layer is confirmed to be Cr2O3, and the innermost layer consists of discontinuous SiO2. Key words: Ni-based superalloy; rare earth element; high temperature oxidation; multi-layered oxides 1... to high temperature and an oxygen-containing environment will produce oxides on the surface, such as Ta2O5, WO3, TiO2, Cr2O3 and Al2O3 [7-11]. However, Cr2O3 oxide can effectively obstruct the base......
Role of the Bandgaps on Some Interfacial Phenomena with Ionocovalent Oxides李建国摘 要:<正> Many ionocovalent oxide materials are either semiconducting or insulating in nature.One of the most im-portant quantities characterising these materials,therefore,is the bandgap energy.The thermodynamic ap-proaches to the bandgaps of oxides are briefly described......
电熔镁钙砂的加入方式 王健东1,孙加林1,高心魁2,潘波1,尹国祥2 (1.北京科技大学材料科学与工程学院;2.营口青花耐火材料股份有限公司) 摘要:以电熔镁砂和石墨为原料制备CaO含量不同的MgO-CaO-C砖,利用回转法对比了试样抗CaO-SiO2渣性能.结果表明:电熔镁钙砂的加入方式影响抗渣侵蚀及挂渣性能,在CaO含量相同时,电熔镁钙砂全以骨料加入时的挂渣性能较好,而抗渣侵蚀性能较差.只有当电熔镁钙砂骨料与粉料以一定比例加入,即当挂渣性能与抗侵蚀性能均衡时,MgO-CaO-C砖的残厚才最大. 关键词:电熔镁钙砂; 抗侵蚀; 挂渣; fused magnesia-calcia slag corrosion resistance slag adhesion; [全文内容正在添加中] ......
Relationship between coupling ration and elongation length for fused tapered optical fiber couplers LI Wenjuan, ZHENG Yu, DUAN Jian, WANG Lijun, LI Jipan, L Wen (State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, China) Abstract: In order to explore the relationship between coupling ration and elongation length for fused tapered optical fiber......
%. Key words: CeO2-MnOx/CF mixed oxides catalyst; VOCs; catalytic oxidation; influencing factors 随着我国经济高速发展,能源消耗持续加快,大量污染物排放到大气环境中,导致全国连续爆发灰霾等区域性大气污染事件[1].挥发性有机污染物(VOCs)是二次气溶胶[2],PM2.5和O3[3]形成的关键前驱体,"十三五... S A C, CHEN X, MARTYNYUK O, et al. Gold supported on metal oxides for volatile organic compounds total oxidation[J]. Catalysis Today, 2015, 244: 103-114. [22] CHEN Jin, CHEN Xi, CHEN Xi, et al......
speed of 800 r/min. Key words:Lead-zinc oxides ore; Thermal dissolved sulfuration; Sulphidiz-ing ratio; Disproportionation reaction; First-order reaction; [全文内容正在添加中] ......
Study on Catalysts with Rhodium Loading on Different Cerium-Zirconium Mixed Oxides朱增赞,李兵,张爱敏,卢军,赵云昆摘 要:<正>The catalysts with Rh loading on different cerium-zirconium mixed oxides were characterized by BET, H2-TPR and OSC. The effects of different cerium-zirconium mixed oxides on catalytic performance and thermal stability of Rh loaded catalyst......
