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	1. Synthesis of Cyclohexanone-formaldehyde　Resin Catalyzed by Rehydrated Mg-Al Hydrotalcite
	Yang Guo,Jiang Junqing,Zhang Yanwu
	Chemistry 28 February 2014
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	Abstract:Cyclohexanone-formaldehyde resin (CFR) was synthesized over rehydrated Mg-Al hydrotalcite (HT). Therein, Mg-Al HT was rehydrated from Mg-Al HT of good crystallinity using a liquid method. Rehydrated Mg-Al HT (HT-r) shows good catalytic activity for aldol condensation. In the synthesis of CFR catalyzed by HT-r, hexadecyl trimethyl ammonium bromide (CTAB) as a phase transfer catalyst was introduced to enhance the mass transfer. Both higher temperature and longer reaction time are preferable to increase the molecular weight of CFR. Though the catalytic activity of HT-r decreases as the reutilization cycle increases, the deactivated HT-r can be easily regenerated upon calcining and rehydrating.
	TO cite this article:Yang Guo,Jiang Junqing,Zhang Yanwu. Synthesis of Cyclohexanone-formaldehyde　Resin Catalyzed by Rehydrated Mg-Al Hydrotalcite[OL].[28 February 2014] http://en.paper.edu.cn/en_releasepaper/content/4587728


	2. Theoretical study of CO oxidation on the cationic, neutral, and anionic AuM dimers (M = Pd and Ag)
	CHEN Xuan,LU Ruifeng,KAN Erjun,LIU Yuzhen,XIAO Chuanyun,DENG Kaiming
	Chemistry 28 February 2014
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	Abstract:The CO and O2 adsorption as well as CO oxidation on the cationic, neutral, and anionic AuM dimers (M = Pd and Ag) are studied by carrying out density functional calculations. Our results show that CO and O2 could be more stable on AuPd dimers than on AuAg dimers with corresponding charge state. The reaction is explored along two possible pathways: one involves CO attacking the initial complexes of AuM dimers and O2 in path-1, and the other is related to O2 interacting with the complexes of AuM dimers and CO in path-2. The results show that the reactions of CO oxidation on AuPd- and AuPd prefer path-1, while AuPd+ mediated reaction proceeds along path-2. For AuAg dimers, the two pathways are both viable for AuAg- mediated reactions, while the AuAg and AuAg+ mediated reactions prefer path-2. In addition, the energy barriers of CO oxidation on AuAg- and AuAg+ are lower than that on cationic, neutral, and anionic AuPd dimers. So, both the impurity atom and the charge state have substantial effects on both the catalytic activity and the mechanism of CO oxidation on AuM dimers. Finally, AuAg- may be the most active species due to the lowest barrier involved in the reaction.
	TO cite this article:CHEN Xuan,LU Ruifeng,KAN Erjun, et al. Theoretical study of CO oxidation on the cationic, neutral, and anionic AuM dimers (M = Pd and Ag)[OL].[28 February 2014] http://en.paper.edu.cn/en_releasepaper/content/4587737

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	3. Solubilities of 3,3'-[1,2-ethanediylbis (oxy-2,1-ethanediyl)]- bis[1-methyl- imidazolium] bis(hexafluorophosphate) in Dimethyl Formamide + Water
	GuoJiarong,Zhuang Linghua,WangYan,SunJie,WangGuowei
	Chemistry 16 January 2014
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	Abstract:The chemical structure of a new gemini dicationic imidazolium ionic liquid, 3,3'-[1,2-ethanediylbis (oxy-2,1-ethanediyl)]- bis[1-methyl- imidazolium]- bis(hexafluorophosphate) ([C6O2(mim)2][PF6]2) was established by 1HNMR. Thermal stability of ([C6O2(mim)2][PF6]2) was studied with Differential scanning calorimetry (DSC) and thermogravimetry analyses (TG).Using a laser monitoring observation technique at atmospheric pressure, the solubilities of ([C6O2(mim)2][PF6]2) in a dimethyl formamide (DMF) + water binary solvent mixture had been measured from (285.65 to 326.55)K. The experimental data was correlated with the modified Apelblat equation and measured up to experimental data. And the average relative errors σ were all less than 0.30 %, the root-mean-square deviations were all less than 0.30.
	TO cite this article:GuoJiarong,Zhuang Linghua,WangYan, et al. Solubilities of 3,3'-[1,2-ethanediylbis (oxy-2,1-ethanediyl)]- bis[1-methyl- imidazolium] bis(hexafluorophosphate) in Dimethyl Formamide + Water[OL].[16 January 2014] http://en.paper.edu.cn/en_releasepaper/content/4582544


	4. Preparation and luminescent properties of YAG: Sm3+-Bi3+ co-doped luminescent glass for the white light emitting diodes
	Miao jianwen,Qian Zhang,Guohua Song,Chao Lu,Buyuan Qi
	Chemistry 05 December 2013
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	Abstract:Y3Al5O12 (YAG - yttrium aluminum garnet): Sm3+-Bi3+ co-doped luminescent glasses for the white light emitting diodes (W-LEDs) were prepared. The precursor of Y3Al5O12: Sm3+-Bi3+ was synthesized by a chemical co-precipitation method (CPM). The luminescent glasses were obtained with the heat treatment of Ba2CO3 - Na2CO3 - H3PO4 -SiO2 -Al2O3 glass matrix and the precursor of Y3Al5O12: Sm3+-Bi3+ at 1400 C. The influence of the Sm3+ and Bi3+ contents and calcination temperature on the glass luminescent properties was analyzed. Scanning electron microscopy (SEM) results of the inner structure obtained YAG:Sm,Bi fluorescent glasses show that micro particles are distributed homogeneously in the glass matrix, presenting smooth surface and relatively uniform particle size. Luminescent glass can be efficiently excited by ultraviolet (UV) light (400 nm) and emit the strong red light of 602 nm due to the Sm3+ transition of 6H5/2→4D3/2, 6H5/2→6P7/2, 6H5/2→4F7/2, 6H5/2→4I9/2 in excited range and 4G5/2→6H5/2, 4G5/2→6H7/2, 4G5/2→6H9/2 in emission range. The optimum contents of Sm3+ and Bi3+ doped in the YAG: Sm3+-Bi3+ fluorescence glasses are 5% and 2 mol%, respectively, which shows much stronger luminescence intensity. Therefore, the fabricated luminescent glass would have a promising application in the area of white light-emitting diodes.
	TO cite this article:Miao jianwen,Qian Zhang,Guohua Song, et al. Preparation and luminescent properties of YAG: Sm3+-Bi3+ co-doped luminescent glass for the white light emitting diodes[OL].[ 5 December 2013] http://en.paper.edu.cn/en_releasepaper/content/4570542


	5. Crystal Structure and Properties of a 3D Coordination Polymer Built by Cadmium(II) and Pyrazine-2,3-dicarboxylate
	CHEN Yanfei,LEI Xiaoping,CHEN Shumei
	Chemistry 18 November 2013
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	Abstract:A new three-dimensional coordination polymer Cd(pzdca)(H2O)2 (1) (pzdca = pyrazine-2,3-dicarboxylate) has been successfully synthesized and structural characterized. The physical properties such as powder X-ray diffraction (PXRD), thermogravimetric analyses (TGA) and photoluminescence were investigated. Compound 1 features a 4-connected net with typical sra topology.
	TO cite this article:CHEN Yanfei,LEI Xiaoping,CHEN Shumei. Crystal Structure and Properties of a 3D Coordination Polymer Built by Cadmium(II) and Pyrazine-2,3-dicarboxylate[OL].[18 November 2013] http://en.paper.edu.cn/en_releasepaper/content/4569922


	6. A New Three Dimensional Co(II) and Na(I) Heterometallic-organic Framework Prepared from Deep Eutectic Solvent
	CHEN Yanfei,LEI Xiaoping,CHEN Shumei
	Chemistry 12 November 2013
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	Abstract:A new three-dimensional heterometallic-organic framework (HMOF), [Co(bdc)2Na4(e-urea)6] (1) (btc = 1,3,5-benzenetricarboxylate；e-urea = ethyleneurea), has been synthesized by ionothermal method, and characterized by single-crystal X-ray diffraction, X-ray powder diffraction, TGA, IR spectrum and elemental analysis. This compound 1 incorporated mixed Co and Na ions and showed three-dimensional framework.
	TO cite this article:CHEN Yanfei,LEI Xiaoping,CHEN Shumei. A New Three Dimensional Co(II) and Na(I) Heterometallic-organic Framework Prepared from Deep Eutectic Solvent[OL].[12 November 2013] http://en.paper.edu.cn/en_releasepaper/content/4568126


	7. Synthesis, structure characterization of two new complexes based on different Co(II) salts and bis-triazole butane
	TIAN Li,CHEN Yujin,CHENG Peng
	Chemistry 24 October 2013
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	Abstract:Two novel Co(II) complexes [Co0.5(btrb)Cl] (1) and [Co0.5(btrb)1.5]ClO4 (2) (btrb = 1,4-bis(1,2,4-triazol-1-y1) butane) have been synthesized and characterized by elemental analysis and single crystal X-ray diffraction. Complex 1 crystallized in the monoclinic system space group P21/n with lattice parameters: a = 7.306(2) ?, b = 18.481(5) ?, c = 8.489(3) ?, ? = 112.16(4) , Z = 4, R1 = 0.0295, ωR2 = 0.0757; while complex 2 crystallized in the rhombohehral system space group R3 with lattice parameters : a = 18.890(3) ?, b = 18.890(3) ?, c = 25.241(4) ?, Z = 18, R1 = 0.0668, ωR2 = 0.0931. In the two complexes, the metal cobalt ions are six-coordinated by anions and ligands.
	TO cite this article:TIAN Li,CHEN Yujin,CHENG Peng. Synthesis, structure characterization of two new complexes based on different Co(II) salts and bis-triazole butane[OL].[24 October 2013] http://en.paper.edu.cn/en_releasepaper/content/4565746


	8. Gas sensors for CO2 detection based on RGO-PEI films at room temperature
	ZHOU Yong,JIANG Yadong,XIE Guangzhong,WU Mei,TAI Huiling
	Chemistry 13 September 2013
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	Abstract:In this paper, Polyethyleneimine (PEI) and Reduced Graphene Oxide (RGO) were selected as sensing materials for carbon dioxide detection. Two kinds of sensors with different sensitive film structures, i.e., RGO-PEI composite film and RGO-PEI bi-layer film were fabricated by airbrushing the sensitive films on interdigitated electrodes (IDEs). Response performances of both sensors at room temperature were investigated. Results showed that sensors with bi-layer film exhibited smaller baseline drift and more stable sensing characteristics than the counterparts with composite film. Furthermore, bi-layer film sensors with different quantity of PEI solution deposited were studied. Performances of long-time stability, repeatability, low concentration of detection for carbon dioxide, and measurements of response time and recovery time were investigated. It was found that appropriate weight ratio of RGO and PEI was critical for sensing response. In addition, the sensor with bi-layer film exhibited a better repeatability but had longer response time and recovery time than RGO single-layer sensor, and both of them could detect as low as 20 ppm carbon dioxide gas. The relevant sensing mechanisms were studied as well.
	TO cite this article:ZHOU Yong,JIANG Yadong,XIE Guangzhong, et al. Gas sensors for CO2 detection based on RGO-PEI films at room temperature[OL].[13 September 2013] http://en.paper.edu.cn/en_releasepaper/content/4558623


	9. Synthesis and crystal structure of tert-butyl 4-(3-phenylthioureido)piperidine-1-carboxylate
	Xiao-Hui Hu,Yu-Rui Gu,Yun Zuo,Xing Guo,Rui-Qin Fang
	Chemistry 20 August 2013
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	Abstract:In this paper, we have synthesized tert-butyl 4-(3-phenylthioureido)piperidine-1-carboxylate by reacting isothiocyanatobenzene and 4-Amino-1-Boc-piperidine. The structure of title compound was confirmed by elemental analysis, ESI-MS spectrum and X-ray single crystal determination. The chain structure of title compound is formed by intramolecular N-H...O, N-H...S, C-H...O and intermolecular C-H...S hydrogen bonds.
	TO cite this article:Xiao-Hui Hu,Yu-Rui Gu,Yun Zuo, et al. Synthesis and crystal structure of tert-butyl 4-(3-phenylthioureido)piperidine-1-carboxylate[OL].[20 August 2013] http://en.paper.edu.cn/en_releasepaper/content/4556093


	10. Comparative study of bimetallic Pt-Sn catalysts supported on different supports for propane dehydrogenation
	ZHANG Yiwei,ZHOU Yuming,SHI Junjun
	Chemistry 28 April 2013
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	Abstract:The bimetallic PtSn catalysts supported on different supports (ZSM-5, γ-Al2O3, mesoporous alumina, SBA-15) were prepared and several techniques were employed to study the influence of different supports on the catalytic structure and reaction performances. According to the results of XRD, textual properties and acid measurements for the as-prepared catalysts, the selected support is the main factor to determine the porous character and the acidic properties of the corresponding catalyst. Moreover, the dispersion of metallic particles and the coking behavior seem to be obviously different on different supports. Compared with the other samples, the mesoporous alumina supported catalyst shows the most uniform and narrow distribution of metallic particles. Over this sample, the suitable acid content and the regular pore size distribution may account for the more reactive of the deposited carbon. It is also found that the use of different supports has an obvious influence on the reduction behavior of tin species. In our experiments, the use of mesoporous alumina support results in the strong interaction between Pt and Sn oxides, which is favorable for the formation of main active sites for the reaction.
	TO cite this article:ZHANG Yiwei,ZHOU Yuming,SHI Junjun. Comparative study of bimetallic Pt-Sn catalysts supported on different supports for propane dehydrogenation[OL].[28 April 2013] http://en.paper.edu.cn/en_releasepaper/content/4540696

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