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| 1 | Constructions of new families of nonbinary asymmetric quantum BCH codes and subsystem BCH codes显示文摘Two code constructions generating new families of good nonbinary asymmetric quantum BCH codes and good nonbinary subsystem BCH codes are presented in this paper.The first one is derived from q-ary Steane's enlargement of CSS codes applied to nonnarrow-sense BCH codes.The second one is derived from the method of defining sets of classical cyclic codes.The asymmetric quantum BCH codes and subsystem BCH codes here have better parameters than the ones available in the literature. | RiGuang Leng Zhi Ma | 2012 | Science China(Physics,Mechanics & Astronomy)2012，55，3： | 3 |
| 2 | A DFT theoretical study of CH_4 dissociation on gold-alloyed Ni(111)surface显示文摘A density-functional theory(DFT)method has been conducted to systematically investigate the adsorption of CHx(x=0~4)as well as the dissociation of CHx(x=1~4)on(111)facets of gold-alloyed Ni surface.The results have been compared with those obtained on pure Ni(111)surface.It shows that the adsorption energies of CHx(x=1~3)are lower,and the reaction barriers of CH4 dissociation are higher in the first and the fourth steps on gold-alloyed Ni(111)compared with those on pure Ni(111).In particular,the rate-determining step for CH4 dissociation is considered as the first step of dehydrogenation on gold-alloyed Ni(111),while it is the fourth step of dehydrogenation on pure Ni(111).Furthermore,the activation barrier in rate-determining step is higher by 0.41 eV on gold-alloyed Ni(111)than that on pure Ni(111).From above results,it can be concluded that carbon is not easy to form on gold-alloyed Ni(111)compared with that on pure Ni(111). | Hongyan Liu Ruixia Yan Riguang Zhang Baojun Wang Kechang Xie | 2011 | Journal of Natural Gas Chemistry2011，20，6： | 2 |
| 3 | Effects of Processing Variables on the Morphology and Diameter of Electrospun Poly(amino acid ester)phosphazene Nanofibers显示文摘Poly[(alanino ethyl ester)_(0.67)(glycino ethyl ester)_(0.33) phosphazene](PAGP)was synthesized,and morphology and diameter of the electrospun PAGP nanofibers were systematically evaluated by using a cool field emission scanning electron microscope(SEM)with changing the important processing variables such as applied voltage,polymeric concentration,and ambient temperature.The average diameter of PAGP nanofibers was inversely proportional to the applied voltage,but increased with the increase of solution concentration.Lower environmental temperature was unfavorable due to the nanofibers conglutination. | 林益军 DENG Qinghua JIN Riguang | 2012 | Journal of Wuhan University of Technology(Materials Science)2012，27，2： | 2 |
| 4 | Ethane dehydrogenation over the g-C_(3)N_(4)supported metal singleatom catalysts to enhance reactivity and coking-resistance ability显示文摘Ethane dehydrogenation(EDH)to produce ethylene requires high operating temperature to achieve satisfactory ethylene yield,however,this process leads to coke formation and catalyst deactivation.Here,an active site isolation strategy was employed to inhibit side reaction and coke formation over fifteen types of metal single-atom metal/graphitic carbon nitride(M/g-C_(3)N_(4))catalysts.Density functional theory(DFT)calculations completely describe reaction network of ethane dehydrogenation.Onlattice kinetic Monte Carlo simulations were carried out to evaluate catalytic performance under the realistic conditions.The Co/g-C_(3)N_(4),Rh/g-C_(3)N_(4),Ni/g-C_(3)N_(4)catalysts were screened out to exhibit higher C_(2)H_(4)(g)formation activity and C_(2)H_(4)(g)selectivity close to or equal to 100%.The low reactant partial pressure 0%–5%at atmospheric pressure facilitates ethane dehydrogenation,and the appropriate temperatures over Co/g-C_(3)N_(4),Rh/g-C_(3)N_(4),Ni/g-C_(3)N_(4)catalysts are 673.15,723.15,723.15 K,respectively.Especially,Co/g-C_(3)N_(4)catalyst presents the highest C_(2)H_(4)(g)formation activity,attributing to the appropriate antibonding strength between C atom and metal single-atom.Further,a simple descriptor,the reaction energy of C_(2)H_(5)*dehydrogenation to C_(2)H_(4)*,was proposed to quantitatively and quickly evaluate C_(2)H_(4)(g)formation activity.The present study laid a solid foundation for efficient design and development of single-atom catalysts with high-performance for selective dehydrogenation of alkanes. | Yuan Zhang Baojun Wang Maohong Fan Lixia Ling Riguang Zhang | 2023 | Nano Research2023，16，5： | 2 |
| 5 | Formation mechanism of methane during coal evolution:A density functional theory study显示文摘The formation mechanism of methane(CH4) during coal evolution has been investigated by density functional theory(DFT) of quantum chemistry. Thermogenic gas, which is generated during the thermal evolution of medium rank coal, is the main source of coalbed methane(CBM). Ethylbenzene(A) and 6,7-dimethyl-5,6,7,8-tetrahydro-1-hydroxynaphthalene(B) have been used as model compounds to study the pyrolysis mechanism of highly volatile bituminous coal(R), according to the similarity of bond orders and bond lengths. All possible paths are designed for each model. It can be concluded that the activation energies for H-assisted paths are lower than others in the process of methane formation; an H radical attacking on β-C to yield CH4 is the dominant path for the formation of CH4 from highly volatile bituminous coal. In addition, the calculated results also reveal that the positions on which H radical attacks and to which intramolecular H migrates have effects on methyl cleavage. | Lina Zhang Lixia Ling Senpeng Zhao Riguang Zhang Baojun Wang | 2014 | Journal of Energy Chemistry2014，23，5： | 2 |
| 6 | Study of Polymer Blends with Sub-cluster Theory PartⅠ Essential Concepts and Equations of Sub-cluster Theory显示文摘Various viscosity-composition curves of polymer blends are summarized in eight groups. To represent these curves. 'sub-cluster equations' are derived on the basis of so called 'sub-cluster theoryThe essential concepts of sub-cluster theory and the derivation of those 'Sub-cluster equations' are briefly introduced. | Riguang JIN and Hangquan LI (Beijing Institute of Chemical Technology, Beijing, 100029, China)(To whom correspondence should be addressed) | 1994 | Journal of Materials Science & Technology1994，10，2： | 2 |
| 7 | Structure and mechanical properties of PP / EPDM / attapulgite ternary blends显示文摘 | Gao Xiang Mao Lixin Jin Riguang | 2007 | Polymer Journal2007，39，10： | 1 |
| 8 | Toughening ofPoly(2,6-dimethyl-1,4-phenylene oxide)/Nylon 6 Alloys with Functionalized Elastomers Via Reactive Compatibili- zation: Morphology, Mechanical Properties, and Rheology 显示文摘 | Dezhen Wu Xiaodong Wang Riguang Jin | 2004 | European Polymer Journal2004，40，： | 1 |
| 9 | Phosphazene cyclomatrix network polymers: Some aspects of synthesis, characterization and flame-retardant mechanism of polymer显示文摘 | Zhangteng Caiqing Wu Dezhen Jin Riguang | 2005 | Journal of Applied Polymer Science2005，95，4： | 1 |
| 10 | Toughening of poly (2,6-dimethyl-l,4-phenylene oxide nylon 6 alloys with functionalized elastomers via reactive compatibilization: Mor- phology, mechanical properties, and rheology显示文摘 | Wu Dezhen Wang Xiaodong Jin Riguang | 2004 | European Polymer Journal2004，40，6： | 1 |
| 11 | Preparation and Characterization of Polycarbonate/Polypropylene/Attapulgite Ternary Nanocomposites with the Morphology of Encapsulation显示文摘 | Gao Xiang Mao Lixin Jin Riguang | 2005 | Macromoleeular Materials and Engineering2005，290，9： | 1 |
| 12 | Toughening of poly(2,6-dimethyl-1,4-phenylene oxide)/nylon 6 alloys with functionalized elastomers via reactive compatibilization:Morphology,mechanical properties,and rheology显示文摘 | Dezhen Wu Xiaodong Wang Riguang Jin | 2004 | European Polymer Journal2004，40，： | 1 |
| 13 | Nanocomposites of poly (vinyl chloride) and nanometric calcium carbonate particles:Effects of chlorinated polyethylene on mechanical properties,morphology,and rheology显示文摘 | Dezhen Wu Xiaodong Wang Yongzhi Song Riguang Jin | 2004 | Journal of Applied Polymer Science2004，92，4： | 1 |
| 14 | Density functional theory study on the pyrolysis mechanism of thiophene in coal 显示文摘 | Ling Lixia Zhang Riguang Wang Baojun | 2009 | Journal of Molecular Structure :THEOCHEM2009，905，1： | 1 |
| 15 | DFT study on the sulfur migration during benzenethiol pyrolysis in coal 显示文摘 | Ling Lixia Zhang Riguang Wang Baojun | 2010 | Journal of Molecular Structure:THEOCHEM2010，952，1： | 1 |
| 16 | Preparation and characterization of polycarbonate/poly(propylene)/attapulgite ternary nanoeomposites with the morphology of encapsulation显示文摘 | GAO Xiang MAO Lixin JIN Riguang | 2005 | Macromol Mater Eng2005，290，9： | 1 |
| 17 | Nitrile butadiene rubber/hindered phenol nanocomposites with improved strength and high damping performance显示文摘 | Xiu-Ying Zhao Ping Xiang Ming Tian Hao Fong Riguang Jin Li-Qun Zhang | 2007 | Polymer2007，，20： | 1 |
| 18 | Effect of maleic grafting ratio on mechanical properties and morphology of nylon11/ethylene-octene copolymer blend 显示文摘 | Li Qifang Kim Donggil Wu Dezhen Lu Kun Jin Riguang | 2001 | Polym Eng &Sci2001，41，12： | 1 |
| 19 | Toughening of poly (2, 6-dimethyl-1, 4-phenylene oxide) /nylon 6 alloys with functionalized elastomers via reactive compatibilization: morphology, mechanical properties, and theology 显示文摘 | WU Dezhen WANG Xiaodong JIN Riguang | 2004 | Eur Polym J2004，40，6： | 1 |
| 20 | A mecha- nistic study of H2 S adsorption and dissociation on Cu20 (111) surfaces : thermochemistry, reaction barrier 显示文摘 | Zhang Riguang Liu Hongyan Li Jingrui | 2012 | Applied Surface Science2012，258，24： | 1 |
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