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| 1 | Surface functional groups and redox property of modified activated carbons显示文摘一系列激活的碳(交流) 与目的作为激活代理人用 HNO3, H2O2 和蒸气被准备在交流准备过程把功能的组介绍给碳表面。激活代理人,功能的组和交流的氧化还原作用性质被温度节目解吸附作用(TPD ) 描绘的表面上的激活时间和周期的 Voltammetry (CV ) 的集中的效果。结果证明交流的内酯组与组们与 HNO3 的集中增加的激活时间,和 carboxyl 由 HNO3 增加激活。交流的羰基 / 奎宁组与激活时间和 H2O2 的集中由 H2O2 增加激活,尽管酸的组与 H2O2 的集中减少。CV 在 0 和 0.5 V 反映的氧化还原作用性质与功能的组由 TPD 描绘了的任何种氧是不同的,但是它与 SO2 催化氧化 / 氧化性质由 TPR 显示了一致。 | Zhang Xianglan Deng Shengfu Liu Qiong Zhang Yan Cheng Lei | 2011 | Mining Science and Technology2011,21,2: | 1 |
| 2 | Oxidative coupling of methane in a dual-bed reactor comprising of particle/cordierite monolithic catalysts显示文摘A dual-bed reactor was constructed comprising of a 5%Na2WO4-2%Mn/SiO2 particle catalyst and a 4%Ce-5%Na2WO4-2%Mn/SiO2 /cordierite monolithic catalyst.The reaction performance of the oxidative coupling of methane (OCM) over the dual-bed reactor system was evaluated.The effects of the bed height and operation mode,as well as the reaction parameters such as reaction temperature,CH4/O2 ratio and flowrate of feed gas,on the catalytic performance were investigated.The results indicated that the suggested dual-bed reactor exhibited a good performance for the OCM reaction when the feed gases firstly passed through the particle catalyst bed and then to the monolithic catalyst bed.A CH4 conversion of 38.2% and a C2H4 selectivity of 43.3% could be obtained using the dual-bed reactor with a particle catalyst bed height of 10 mm and a monolithic catalyst bed height of 50 mm.Both the CH4 conversion and C2H4 selectivity have increased by 2.5% and 12.8%,respectively,as compared with the 5%Na2WO4-2%Mn/SiO2 particle catalyst in a conventional single-bed reactor and by 12.9% and 23.0%,respectively,as compared with the 4%Ce-5%Na2WO4-2%Mn/SiO2 /cordierite monolithic catalyst in a single-bed reactor.The catalytic performance of the OCM in the dual-bed reactor system has been improved remarkably. | Deng Pan Shengfu Ji Wenhua Wang Chengyue Li | 2010 | Journal of Natural Gas Chemistry2010,19,6: | 1 |
| 3 | Abrasive resistance of arc sprayed carbonitride alloying self- shielded coatings显示文摘 | Deng Yu Yu Shengfu Xing Shule | 2011 | Applied Surface Science2011,258,: | 1 |
| 4 | Materials,fundamentals,and technologies of liquid metals toward carbon neutrality显示文摘Carbon-neutral technologies are critical to ensure a stable future climate.Currently,low-melting-point liquid metals are emerging rapidly as important energy materials with significant potential to contribute to carbon neutrality.The advantages of gallium-and bismuth-based liquid metals,such as their high fluidity,low melting point,high thermal/electrical conductivity,unique chemical properties,non-flammability,and nontoxic characteristics,render them highly attractive for the development of advanced carbon-neutral technologies.Although their significance in both academia and industry has increased gradually,to the best of our knowledge,a systematic monograph of liquid-metal materials,mechanisms,and technologies toward carbon neutrality is not yet available.Therefore,we presented a comprehensive review of low-melting-point liquid metals for carbon neutrality.First,liquid-metal materials,including fluids,pastes,solids,and their composites were introduced.Subsequently,the mechanisms of liquid-metal technologies used to achieve carbon neutrality were interpreted.Finally,typical liquid-metal applications of carbon neutrality in the power,industry,transport,and building sectors were presented.Both the fundamental mechanisms and promising technologies were elaborated upon,and the critical assessment criteria for carbon-neutral technologies were discussed.The scientific and technical challenges and future perspectives in these areas were also highlighted. | DENG YueGuang E ErTai LI Jing JIANG Yi MEI ShengFu YU Yang | 2023 | Science China(Technological Sciences)2023,66,6: | 0 |
| 5 | Notes on Homoclinic Solutions of the Steady Swift-Hohenberg Equation显示文摘This paper considers the steady Swift-Hohenberg equation u''+β~2u'+u^3-u=0.Using the dynamic approach,the authors prove that it has a homoclinic solution for eachβ∈[8^(1/4)-ε_0,8^(1/4)),whereε_0 is a small positive constant.This slightly complements Santra and Wei's result[Santra,S.and Wei,J.,Homoclinic solutions for fourth order traveling wave equations,SIAM J.Math.Anal.,41,2009,2038-2056],which stated that it admits a homoclinic solution for eachβ∈(0,β_0)whereβ_0=0.9342…. | Shengfu DENG Boling GUO Xiaopei LI | 2013 | Chinese Annals of Mathematics,Series B2013,34,6: | 0 |
| 6 | Existence of Generalized Heteroclinic Solutions of the Coupled Schrdinger System under a Small Perturbation显示文摘The following coupled Schrdinger system with a small perturbation uxx + u- u3+ βuv2+ f(, u, ux, v, vx) = 0 in R,vxx- v + v3+ βu2v + g(, u, ux, v, vx) = 0 in R is considered, where β and are small parameters. The whole system has a periodic solution with the aid of a Fourier series expansion technique, and its dominant system has a heteroclinic solution. Then adjusting some appropriate constants and applying the fixed point theorem and the perturbation method yield that this heteroclinic solution deforms to a heteroclinic solution exponentially approaching the obtained periodic solution(called the generalized heteroclinic solution thereafter). | Shengfu DENG Boling GUO Tingchun WANG | 2014 | Chinese Annals of Mathematics,Series B2014,35,6: | 0 |