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21篇 您的检索式:作者名="HE Heyong"
    题名 作者 年代 出处 被引量
1Study of Oxygen Vacancies on Different Facets of Anatase TiO2显示文摘Anatase TiO2 samples with different ratios of {101} to {001} facets were prepared with hydrothermal method and further treated under three specific calcination atmospheres (air,H2,N2).The characterization results indicate that {001} facets may generate more oxygen vacancies and more Ti3+ species than {101} facets.Yanan Wu Yingyi Fu Li Zhang Yuanhang Ren Xueying Chen Bin Yue Heyong He 2019Chinese Journal of Chemistry2019,37,9:4
2Structure of graphite oxide revisited 显示文摘Led A He Heyong Forster M 1998Phys Chem B1998,102,23:1
3Graphite oxide as an efficient and durable metal-free catalyst for aerobic oxidative coupling of amines to imines 显示文摘Huang Hai Huang Jun Liu Yongmei He Heyong Cao Yong Fan Kangnian 2012Green Chemistry2012,14,4:1
4Structure of graphite oxiderevisited显示文摘Lerf A He Heyong Forster M and Klinowski J 1998J Phys Chem (B)1998,102,:1
5Solid-state NMR studies of the structure of graphite oxide 显示文摘HE Heyong RIEDL T LERF A 1996Journal of Physical Chemistry1996,100,19:1
6Struc- ture of graphite oxide revisited 显示文摘LERF A HE Heyong FORSTER M 1998Journal of Physi- cal Chemistry B1998,102,:1
7A Reliable synthesis of Cubic Mesoporous MCM-48 Molecular sieve 显示文摘Xu Jie Luan Zhaohua He Heyong etal 1998Chem Mater1998,10,11:1
8Structure of graphite oxide revisited 显示文摘ANTON LERF HEYONG HE FORSTER M 1998J Phys Chem1998,102,:1
9A new structural model for graphite oxide显示文摘HEYONG HE JACEK KLINOWSKI MICHAEL FORSTER 1998Chemical Physics Letters1998,287,:1
10Ordinal scheduling problem and its asymptotically optimal algorithms on parallel machine system显示文摘Focusing on the ordinal scheduling problem on a parallel machine system, we discuss the background of ordinal scheduling and the motivation of ordinal algorithms. In addition, for the ordinal scheduling problem on identical parallel machines with the objective to maximize the minimum machine load, we then give two asymptotically optimal algorithm classes which have worst-case ratios very close to the upper bound of the problem for any given m. These results greatly improve the results proposed by He Yong and Tan Zhiyi in 2002.TAN Zhiyi1,2 & HE Yong1 1. Department of Mathematics, Zhejiang University, Hangzhou 310027, China (email: tanzy@math.zju. edu.cn heyong@math.zju.edu.cn) 2. State Key Laboratory of CAD & CG, Zhejiang University, Hangzhou 310027, China 2004Science in China(Series F)2004,47,2:1
11A New Structural Model fo rGraphite Oxide显示文摘He Heyong Jacek Klinowski 1998Chem Phys Lett1998,287,12:1
12Synthesis of novel core-shell structured WO 3 /TiO 2 spheroids and its application in the catalytic oxidation of cyclopentene to glutaraldehyde by aqueous H 2 O 2显示文摘Xin-Li Yang Wei-Lin Dai Changwen Guo Hui Chen Yong Cao Hexing Li Heyong He Kangnian Fan 2005Journal of Catalysis2005,,2:1
13Characterization and Catalytic Activities of Al2O3-Promoted Sulfated Tin Oxides显示文摘Jie Zhao Yinghong Yue Dewei Zhai Changxi Miao Jianyi Shen Heyong He Weiming Hua Zi Gao 2009Catalysis Letters (-)2009,,1:1
14Structure of graphite oxide revisited显示文摘Anton Lerf Heyong He Michael Forster 1998J Phys Chem B1998,102,:1
15A new structural model :for graphite oxide显示文摘He Heyong Jacek Klinowski Michael Forster 1998Chem Phys Lett1998,287,12:1
16The synergy of modulated surface polarity and oxygen vacancy for CO_(2) to methanol over Zn(δ-)-Ti(δ+)Ovacancy显示文摘Bi-functional catalysts,which can be traced back to 1960s,are widely applied in energy conversion and chemical transformation[1].Generally,the enhanced performance of the bi-functional catalyst comes from the local geometry or electron density change after the second component introduced.These changes facilitate the reaction at the structure or electron density level[2].In fact,it is a great challenge to understand and control those effects[3].Junfu Zhou Lin Ye Daofeng Huang Meiyin Wang Yuanhang Ren Bin Yue Heyong He 2021Journal of Energy Chemistry2021,30,5:0
17Synthesis of Cs_(2.5)H_(0.5)PW_(12)O_(40)/TiO_(2) Nanocomposites with Dominant TiO_(2){001}Facets and Related Photocatalytic Properties显示文摘TiO_(2) nanosheets with dominant{001}facets,coupled with Cs_(2.5)H_(0.5)PW_(12)O_(40),were successfully synthesized by a one-step hydrothermal reaction.The photocatalytic activity of nanocatalysts was evaluated by the degradation of Rhodamine B under UV light irradiation.The results showed that both the addition of Cs_(2.5)H_(0.5)PW_(12)O_(40) and the exposed{001}facets of TiO_(2) have a positive effect on the photocatalytic activity.The improved photoactivity of nanocomposites in comparison with that of TiO_(2) nanosheets could be attributed to the synergistic effect between Cs_(2.5)H_(0.5)PW_(12)O_(40) and TiO_(2) which facilitates the separation of photo-induced hole-electron pairs.Yichen Hu Yuanhang Ren Gangfeng Tang Cheng Wang Min Tang Bin Yue Heyong He 2014Chinese Journal of Chemistry2014,32,11:0
18Promotional effect of cerium on nickel-containing mesoporous silica for carbon dioxide reforming of methane显示文摘A series of Ce-promoted 6.7%Ni-containing mesoporous silica(Ce-Ni-Si O2)with varying Ce content(0.5%–4.8%)was prepared using the evaporation-induced self-assembly method.The characterization results showed that Ce and Ni species were homogeneously incorporated into the mesoporous silica matrix.The catalytic properties of these samples in the dry reforming of methane reaction revealed that the catalysts(e.g.,1.2%Ce-Ni-Si O2)containing highly dispersed small Ni particles exhibited excellent catalytic activity and long-term stability,which is attributed to the anchoring effect of the Ce and its ability to increase surface oxygen species concentration.Yingyi Fu Yanan Wu Wenjia Cai Bin Yue Heyong He 2015Science China Chemistry2015,58,1:0
19Improving Catalytic Stability and Coke Resistance of Ni/Al_(2)O_(3) Catalysts with Ce Promoter for Relatively Low Temperature Dry Reforming of Methane Reaction显示文摘A series of Ni catalysts supported on alumina with different Ce contents(1.0%–6.0%,mass fraction)was prepared by the impregnation method and used for dry reforming of methane(DRM)at a relatively low temperature of 650°C.The promotion effect of Ce with different loading amounts on the physicochemical properties of the catalysts was systematically characterized by transmission electron microscopy(TEM),X-ray diffraction(XRD),N_(2) adsorption-desorption,thermo elemental IRIS Intrepid inductively coupled plasma atomic emission spectrometer(ICP-AES),UV-visible diffuse reflectance spectroscopy(UV-Vis DRS),Fourier transformation infrared(FTIR)spectra,H_(2)-temperature programmed reduction(H_(2)-TPR)analysis,H_(2)-temperature programmed desorption(H_(2)-TPD),and The X-ray photoelectron spectroscopy(XPS)techniques.The results indicate that all the catalysts mainly exist in the NiAl_(2)O_(4) phase after being calcined at 750°C with small Ni particle sizes due to the strong metal-support interaction derived from the reduction of the NiAl_(2)O_(4) phase.The Ce-promoted catalysts show better catalytic performance as well as the resistance against sintering of Ni particles and deposition of carbon compared to the Ni/Al_(2)O_(3) catalyst.The Ni-6Ce/Al_(2)O_(3) exhibits the best catalytic stability and coke resistance among the four catalysts studied,which is due to its small Ni nanoparticles sizes,excellent reducibility as well as high amount of active oxygen species.In a 400 h stability test for DRM reaction at 650°C,Ni-6Ce/Al_(2)O_(3) exhibits less coke deposition and small growth of Ni nanoparticles.This work provides a simple way to preparing the Ni-Ce/Al_(2)O_(3) catalyst with enhanced catalytic performance in DRM.The Ni-6Ce/Al_(2)O_(3) catalyst has great potential for industrial application due to its anti-sintering ability and resistance to carbon deposition.HE Lulu CHEN Xin REN Yuanhang YUE Bin TSANG Shik Chi Edman HE Heyong 2022Chemical Research in Chinese Universities2022,38,4:0
20Effect of Bronsted/Lewis Acid Ratio on Conversion of Sugars to 5-Hydroxymethylfurfural over Mesoporous Nb and Nb-W Oxides显示文摘一系列 mesoporous Nb 和 Nb-W 氧化物为葡萄糖的变换作为高度活跃的稳固的酸催化剂被采用到 5-hydroxymethylfurfural (HMF ) 。固体的结果说 31 有是的吸附的 trimethylphosphine 的 P 妈 NMR 光谱学在铌氧化物的 W 的增加增加的探查分子表演 Br 的数字 ? nsted 酸地点和减少路易斯酸地点的数字。为 Nb-W 氧化物的催化表演与 Br 的比率变化了 ? 到路易斯酸地点和高葡萄糖变换的 nsted 在 Nb 5 W 5 和 Nb 7 有 Br 的高比率的 W 3 氧化物 ? nsted 到路易斯酸地点。所有 Nb-W 氧化物显示出 HMF 的一种相对高的选择,而没有 HMF 由于它的纯 Br 在硫磺的酸上形成 ? nsted 酸味。结果显示葡萄糖的快异构化到在地点由脱水跟随了的路易斯酸上果糖对在 Br 上的 HMF 果糖 ? nsted 酸地点。而且,比作反应发生在水的媒介, 2-butanol/H 2 O 系统提高 HMF 选择并且稳定在 Nb 7 W 3 氧化物。2-butanol/H 2 O 催化系统能也在蔗糖的变换被采用,在 Nb 5 W 5 氧化物。Bin Guo Lin Ye Gangfeng Tang Li Zhang Bin Yue Shik Chi Edman Tsang Heyong He 2017Chinese Journal of Chemistry2017,35,10:0
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