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	1. Photocatalytic Decomposition of Perfluorooctane Sulfonate (PFOS) and Perfluorooctanoate (PFOA) by Sr-β-Bi2O3 under Visible Light Irradiation
	YIN Lifeng,Bo Fusheng,Dai Yunrong
	Chemistry 16 October 2013
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	Abstract:Perfluorooctane sulfonate (PFOS) and perfluorooctanoate (PFOA) are difficult to remove from the water environment due to their inertness to photolysis, hydrolysis, and biodegradation. In the study, the rapid decomposition of PFOS and PFOA was found in the presence of Sr-β-Bi2O3 as a photocatalyst under visible light irradiation. Compared with nano-TiO2 and direct photolysis, the photocatalysis by Sr-β-Bi2O3 can remove PFOS and PFOA more efficiently. In 1.0 h, about 72.3% of PFOS and 60.1% of PFOA ([PFOS]i = [PFOA]i = 100 μgL-1) can be removed from the aqueous solution under visible light irradiation (λ > 440 nm). The effects of temperature, pH, and initial PFOS/PFOA concentration on the photocatalytic decomposition rates were investigated. Sequentially, the intermediate products were identified as PFO (C8F17), PFHe (C6F13), PFPe (C5F11), PFBu (C4F9), PFPr (C3F7), PFHpS (C7F15SO3), and PFHeS (C6F13SO3). Based on the detection of reactive radicals, photocatalytic reduction by hydrated electron was determined as the major degradation route. The detailed defluorination pathway was also proposed.
	TO cite this article:YIN Lifeng,Bo Fusheng,Dai Yunrong. Photocatalytic Decomposition of Perfluorooctane Sulfonate (PFOS) and Perfluorooctanoate (PFOA) by Sr-β-Bi2O3 under Visible Light Irradiation[OL].[16 October 2013] http://en.paper.edu.cn/en_releasepaper/content/4564646


	2. Crystal Transformation and Visible light Driven Photocatalytic Activities of Vanadium doped Bismuth Oxide
	YIN Lifeng,Bo Fusheng,Dai Yunrong
	Chemistry 16 October 2013
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	Abstract:The doping of bismuth oxide with vanadium yielded a series of photocatalysts with visible light responsive ability, including bismuth subcarbonate (Bi2O2CO3), monoclinic bismuth vanadate (BiVO4), bismuth oxides, cubic bismuth vanadate (Bi12.38V0.62O20.12) and their co-crystalline under the different anneal temperatures. It is suggested that vanadium doping in the lattice of bismuth oxide results in the crystalline transformation. Among them, the mixture of cubic bismuth oxide and bismuth vanadate presented the highest degradation efficiency (98.5%) for 4-chlorophenol, a widespread environmental pollutant, under visible light and sunlight irradiation. The degradation mechanism was ascribed to the photocatalytic reduction by the photo-generated electron.
	TO cite this article:YIN Lifeng,Bo Fusheng,Dai Yunrong. Crystal Transformation and Visible light Driven Photocatalytic Activities of Vanadium doped Bismuth Oxide[OL].[16 October 2013] http://en.paper.edu.cn/en_releasepaper/content/4564373

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	3. Most probable reactive site of acid-catalyzed transesterification reaction for synthesis of biodiesel
	ZHANG Pingbo,HAN Qiuju,FAN Mingming,JIANG Pingping
	Chemistry 16 October 2013
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	Abstract:Using the Density Functional Theory (DFT), the issue of which to react first among the three ester bonds of the triglyceride was studied. The previous reports showed that the center ester bond was followed by the outside ester bond resulting in the transesterification reaction. However, this result was questioned by our research, suggesting that the transesterification of the outside ester bond is the most favorable process.
	TO cite this article:ZHANG Pingbo,HAN Qiuju,FAN Mingming, et al. Most probable reactive site of acid-catalyzed transesterification reaction for synthesis of biodiesel[OL].[16 October 2013] http://en.paper.edu.cn/en_releasepaper/content/4564463


	4. Electrocarboxylation of haloacetophenones at Ag electrode
	WANG Huan,Xu Xiaoming,LAN Yangchun,WANG Huimei,LU Jiaxing
	Chemistry 08 October 2013
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	Abstract:Electrocarboxylation of haloacetophenones 1 has been carried out in an undivided cell equipted with Ag cathode and Mg sacrificial anode in N,N-dimethylformamide (DMF). Cyclic voltammetry was also used to investigate the electroreduction behavior of haloacetophenones at Ag electrode. The cleavage of C-X bond was more favored for the electrocatalytic ability of Ag. Thus, 4-acetyl benzoate 2 was obtained as the principal product, accompanied by acetophenone 3 and 2-hydroxy-2-phenylpropionate 4. The performances of process have been found to be dependent on the synthesis conditions, such as cathode material, supporting electrolyte, electric charge, current density and the temperature. Higher yields were obtained by changing from chloro to bromo to iodo derivatives, and from ortho to para to meta isomer.
	TO cite this article:WANG Huan,Xu Xiaoming,LAN Yangchun, et al. Electrocarboxylation of haloacetophenones at Ag electrode[OL].[ 8 October 2013] http://en.paper.edu.cn/en_releasepaper/content/4563209


	5. Energetic Properties and Stabilities of Iron and Zinc Complexes of N,N-bis(1(2)H-tetrazol-5-yl)amine
	DONG Linlin,HE Ling,TAO Guohong
	Chemistry 07 October 2013
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	Abstract:The iron (2) and zinc (3) complexes based on N,N-bis(1(2)H-tetrazol-5-yl)amine (H2BTA, 1) were prepared. Complexes 2 and 3 were characterized by differential scanning calorimeter (DSC) and thermogravimetric analysis (TGA) to estimate their thermal stabilities. These complexes are thermal stable with first loss of the coordinated water and then decomposed at higher temperature (330-360 C). Their sensitivities toward impact along with friction were tested by BAM standards. Complexes 2 and 3 are insensitive to neither impact (>40 J) nor friction (>360 N), which can be classed as insensitive energetic materials. Their standard heats of formation were investigated based on the heats of combustion performed by bomb calorimetry. Complexes 2 and 3 are of interest as potential energetic materials with high nitrogen content (~60%), high heats of formation, high oxygen balance, high thermal stability as well as low sensitivity to impact and friction.
	TO cite this article:DONG Linlin,HE Ling,TAO Guohong. Energetic Properties and Stabilities of Iron and Zinc Complexes of N,N-bis(1(2)H-tetrazol-5-yl)amine[OL].[ 7 October 2013] http://en.paper.edu.cn/en_releasepaper/content/4563053


	6. Electrocatalytic reduction of PhCH2Br on Ag-Y zeolite modified electrode
	WANG Huan,HE Li,LV Ting,SUI Guojiao,TU Zhuoying,LU Jiaxing
	Chemistry 28 August 2013
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	Abstract:In order to improve the catalytic efficiency toward electroreduction of organic halides, Ag-exchanged Y zeolite (Ag-Y) has been prepared and modified on glass carbon (GC) electrodes. Ag-Y zeolite was characterized by XRD, BET, ICP, SEM, TEM and XPS. Silver species, in state of Ag+, has been successfully exchanged into Y zeolite. The Ag-Y zeolite modified electrode was used for the PhCH2Br reduction. Similar electrochemical behavior, besides more positive reduction potential, was obtained on Ag-Y/GC electrode as that on Ag and GC electrodes. According to the bulk electrolysis, the electrochemical dimerization and carboxylation yields on Ag-Y/GC electrode were enhanced to twice and triple as that on Ag electrode, and even 3.5 and 10 times as that on GC electrode.
	TO cite this article:WANG Huan,HE Li,LV Ting, et al. Electrocatalytic reduction of PhCH2Br on Ag-Y zeolite modified electrode[OL].[28 August 2013] http://en.paper.edu.cn/en_releasepaper/content/4557196


	7. Comparison of Lithium Oxide and Bismuth Oxide as Sintering Aids for Barium Y2O3-Doped Barium Zirconate
	LE Shiru*,ZHU Xiaodong,SUN Kening
	Chemistry 09 July 2013
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	Abstract:Decreasing Y2O3-doped barium zirconate (BZY) sintering temperature is crucial for its implementation in solid oxide fuel cells (SOFCs). Bismuth oxide and lithium oxide as sintering aids for BZY were evaluated. It is found that 3 mol% Bi2O3 doped BZY (BZY-3Bi) improves its shrinkage from 10.4 % to 19.02 % at about 1480 ℃, with the maximum shrinkage rate increasing from -0.20 mm.min-1 to -0.34 mm.min-1. No pores could be seen in the BZY-3Bi and BZY-5Bi in the SEM images when the samples were sintered at 1400 ℃ for 24 h . However, both shrinkage tests and SEM images demonstrate that lithium oxide is detrimental for BZY as sintering aid. The conductivity of BZY-2Bi is 1.13 ×10-3 Socm-1 in wet hydrogen atmosphere at 600 ℃ sintered at 1400 ℃ for 24 h, nearly equal to that of BZY-0Bi.
	TO cite this article:LE Shiru*,ZHU Xiaodong,SUN Kening. Comparison of Lithium Oxide and Bismuth Oxide as Sintering Aids for Barium Y2O3-Doped Barium Zirconate[OL].[ 9 July 2013] http://en.paper.edu.cn/en_releasepaper/content/4550873


	8. Electrical Properties of Ce0.8Sm0.2O1.9 with the Addition of Li2O as Sinter Aid
	Shengcai Zhu,Shiru Le,Kening Sun
	Chemistry 14 May 2013
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	Abstract:Improving the densification and electrochemical performance of Sm0.2Ce0.8O1.9 (SDC) is essential for its widely application in the intermediate temperature solid oxide fuel cells (IT-SOFCs). Introducing a small amount of Li2O into the SDC as sintering aid can enormously decrease the densification temperature from 1500 ℃ to 900 ℃ and increase its relative density. The electrical conductivities increased from 0.017 Socm-1 for SDC-0 to 0.026 Socm-1 for SDC-2 at 600 ℃. This is contributed to the enrichment of Li+ on the grain boundary, which enhanced grain boundary conductivity. However, excessive Li2O addition will reduce the conductivities at temperature higher than 800 ℃, because the melted Li2O layer restrained the oxygen ionic transfer. The activation energy for electrochemical conductivity decreases from 0.78 eV for SDC-0 to 0.75 eV for SDC-5.
	TO cite this article:Shengcai Zhu,Shiru Le,Kening Sun. Electrical Properties of Ce0.8Sm0.2O1.9 with the Addition of Li2O as Sinter Aid[OL].[14 May 2013] http://en.paper.edu.cn/en_releasepaper/content/4543303


	9. 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


	10. Sub-Millimeter Free-Suspended Sheets Formed by Polyelectrolytes with Multivalent Counterions
	LIU Nijuan,BU Weifeng
	Chemistry 09 April 2013
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	Abstract:Here, we report the preparation of polyoxometalate-based free-suspended sheets with a sub-millimeter plan-view size and a nanoscale thickness by the electrostatic self-assembly of cationic polyelectrolytes with polyoxometalate in aqueous solution. This method is further extended to prepare the dye-functionalized free-suspended sheets with a larger planar size and a thinner thickness. The controlled preparation of the giant free-suspended sheets represents a new strategy for the design of two-dimensional materials with integrated functions such as nanoseparation and electro-optics.
	TO cite this article:LIU Nijuan,BU Weifeng. Sub-Millimeter Free-Suspended Sheets Formed by Polyelectrolytes with Multivalent Counterions[OL].[ 9 April 2013] http://en.paper.edu.cn/en_releasepaper/content/4536946

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