Li Zeng, Jiang-Lin Zhao, Lan Mu, Xi Zeng, G. Wei, C. Redshaw, Zongwen Jin
The probe 1 was readily prepared via condensation of 8-formyl-7-hydroxy-coumarin and carbonic dihydrazide in a one-step procedure. Probe 1 exhibited high sensitivity and selectivity towards Zn²⁺ and F⁻ through a “turn-on” fluorescence response and/or ratiometric colorimetric response with low detection limits of the order of 10-8 M. The complex behaviour was fully investigated by spectral titration, isothermal titration calorimetry, 1H NMR spectroscopic titration and mass spectrometry. Interestingly, probe 1 not only recognizes the cation Zn²⁺ and the anion F⁻, but can also distinguish between these two ions via the max wavelength in their UV-vis spectra (360 nm for 1-Zn²⁺ versus 400 nm for 1-F⁻ complex) or their fluorescent spectra (λₑₓ / λₑm = 360 nm/ 454 nm for 1-Zn²⁺ versus λₑₓ / λₑm = 400 nm/ 475 nm for 1-F⁻ complex) due to their differing red-shifts. Additionally, probe 1 has been further explored in the detection of Zn²⁺ in living cells.
{"title":"A readily accessible multifunctional probe : simultaneous recognition of the cation ZN²⁺ and the anion F⁻ via distinguishable wavelengths","authors":"Li Zeng, Jiang-Lin Zhao, Lan Mu, Xi Zeng, G. Wei, C. Redshaw, Zongwen Jin","doi":"10.11862/CJIC.2017.076","DOIUrl":"https://doi.org/10.11862/CJIC.2017.076","url":null,"abstract":"The probe 1 was readily prepared via condensation of 8-formyl-7-hydroxy-coumarin and carbonic dihydrazide in a one-step procedure. Probe 1 exhibited high sensitivity and selectivity towards Zn²⁺ and F⁻ through a “turn-on” fluorescence response and/or ratiometric colorimetric response with low detection limits of the order of 10-8 M. The complex behaviour was fully investigated by spectral titration, isothermal titration calorimetry, 1H NMR spectroscopic titration and mass spectrometry. Interestingly, probe 1 not only recognizes the cation Zn²⁺ and the anion F⁻, but can also distinguish between these two ions via the max wavelength in their UV-vis spectra (360 nm for 1-Zn²⁺ versus 400 nm for 1-F⁻ complex) or their fluorescent spectra (λₑₓ / λₑm = 360 nm/ 454 nm for 1-Zn²⁺ versus λₑₓ / λₑm = 400 nm/ 475 nm for 1-F⁻ complex) due to their differing red-shifts. Additionally, probe 1 has been further explored in the detection of Zn²⁺ in living cells.","PeriodicalId":9986,"journal":{"name":"无机化学学报","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2017-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73820358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yuqiao Fan, Liping Sun, H Zhao, L. Huo, J. Bassat, A. Rougier, S. Fourcade, J. Grenier
Sr1.5La0.5Mn1-xCoxO4 (SLMCOx) cathode materials for IT-SOFCs (intermediate temperature solid oxide fuel cells) were synthesized by EDTA-citric acid method and characterized by XRD, XPS and EIS, respectively. The results show that SLMCOx has no reaction with Ce0.9Gd0.1O1.95 at 1 200℃ for 12 h. Both the amount of Mn3+ and Co2+ in the oxide increase with the Co doping concentration; at the same time the content of lattice oxygen reduces, and the distortion ratio (c/a) of the lattice increases. The EIS results show that Co-doping dramatically reduces the polarization resistance (Rp) of SLMCOx cathode. The Sr1.5La0.5Mn0.7Co0.3O4 has the lowest Rp of 0.62 Ω·cm2 at 700℃ in air, which is clearly smaller than the Rp value of Sr1.5La0.5Mn0.7O4 that measured at 750℃ (1.5 Ω·cm2). Our results indicate that the Co doped Sr1.5La0.5Mn1-xCoxO4 is potential cathode material for IT-SOFC.
{"title":"Synthesis and high temperature electrochemical properties of Co-doped Sr1.5La0.5MnO4","authors":"Yuqiao Fan, Liping Sun, H Zhao, L. Huo, J. Bassat, A. Rougier, S. Fourcade, J. Grenier","doi":"10.11862/CJIC.2016.207","DOIUrl":"https://doi.org/10.11862/CJIC.2016.207","url":null,"abstract":"Sr1.5La0.5Mn1-xCoxO4 (SLMCOx) cathode materials for IT-SOFCs (intermediate temperature solid oxide fuel cells) were synthesized by EDTA-citric acid method and characterized by XRD, XPS and EIS, respectively. The results show that SLMCOx has no reaction with Ce0.9Gd0.1O1.95 at 1 200℃ for 12 h. Both the amount of Mn3+ and Co2+ in the oxide increase with the Co doping concentration; at the same time the content of lattice oxygen reduces, and the distortion ratio (c/a) of the lattice increases. The EIS results show that Co-doping dramatically reduces the polarization resistance (Rp) of SLMCOx cathode. The Sr1.5La0.5Mn0.7Co0.3O4 has the lowest Rp of 0.62 Ω·cm2 at 700℃ in air, which is clearly smaller than the Rp value of Sr1.5La0.5Mn0.7O4 that measured at 750℃ (1.5 Ω·cm2). Our results indicate that the Co doped Sr1.5La0.5Mn1-xCoxO4 is potential cathode material for IT-SOFC.","PeriodicalId":9986,"journal":{"name":"无机化学学报","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86354073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiang Li, W. Dong, Meng-Meng Zhao, Chengfeng Yang, Xiu-Yan Dong, Gang Li
A salamo-type chelating ligand 4-chloro-6′-methoxy-2,2′-[ethylenediyldioxybis(nitrilomethylidyne)]diphenol(H2L) and its complex [Co(L)(H2O)], have been synthesized and characterized by elemental analyses, IR spectra, UV-Vis spectra and X-ray single crystal diffraction method. The ligand crystallizes in the monoclinic system,space group P21/n with cell parameters: a=1.555 54(17) nm, b=0.470 55(5) nm, c=2.423 3(2) nm, β=106.108(2)°,Z=4, V=1.704 1(3) nm3, R1=0.055 3, wR2=0.063 3, and the Co髤 complex crystallizes in the orthorhombic system, space group Iba2 with cell parameters: a=1.934 27(14) nm, b=2.497 20(19) nm, c=0.752 96(5) nm, Z=8,V=3.637 0(5) nm3, R1=0.045 4, wR2=0.083 9, the Co髤 complex is mono-nuclear structure. The five-coordinated Co髤 atom of the complex lies in the N2O2 coordination sphere of one bis-oxime ligand, and the Co髤 atom of the complex has a slightly distorted trigonal bipyramid geometry, while the molecules also assemble to a 1D infinite chain-like supramolecular structure by intermolecular C8-H8…Cl1 hydrogen bond. CCDC: 940101,H2L; 940100,Co髤 complex.
{"title":"An Asymmetrical Salamo-Type Chelating Ligand with Its Cobalt(II) Complex:Syntheses, Characterizations and Crystal Structures","authors":"Xiang Li, W. Dong, Meng-Meng Zhao, Chengfeng Yang, Xiu-Yan Dong, Gang Li","doi":"10.11862/CJIC.2014.263","DOIUrl":"https://doi.org/10.11862/CJIC.2014.263","url":null,"abstract":"A salamo-type chelating ligand 4-chloro-6′-methoxy-2,2′-[ethylenediyldioxybis(nitrilomethylidyne)]diphenol(H2L) and its complex [Co(L)(H2O)], have been synthesized and characterized by elemental analyses, IR spectra, UV-Vis spectra and X-ray single crystal diffraction method. The ligand crystallizes in the monoclinic system,space group P21/n with cell parameters: a=1.555 54(17) nm, b=0.470 55(5) nm, c=2.423 3(2) nm, β=106.108(2)°,Z=4, V=1.704 1(3) nm3, R1=0.055 3, wR2=0.063 3, and the Co髤 complex crystallizes in the orthorhombic system, space group Iba2 with cell parameters: a=1.934 27(14) nm, b=2.497 20(19) nm, c=0.752 96(5) nm, Z=8,V=3.637 0(5) nm3, R1=0.045 4, wR2=0.083 9, the Co髤 complex is mono-nuclear structure. The five-coordinated Co髤 atom of the complex lies in the N2O2 coordination sphere of one bis-oxime ligand, and the Co髤 atom of the complex has a slightly distorted trigonal bipyramid geometry, while the molecules also assemble to a 1D infinite chain-like supramolecular structure by intermolecular C8-H8…Cl1 hydrogen bond. CCDC: 940101,H2L; 940100,Co髤 complex.","PeriodicalId":9986,"journal":{"name":"无机化学学报","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73947857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-10DOI: 10.3969/J.ISSN.1001-4861.2013.00.399
Z. Li, D. Weiping, Peng Luming
In this paper, La2O3 doped with varied Ce3+ concentrations were synthesized via hydrothermal co-precipitation followed by high temperature calcined process in H-2/N-2 atmosphere. Three new peaks show up at 698, 650 and 558 in O-17 solid state NMR spectra due to Ce3+ doping. The intensies of these peaks increase with Ce3+ concentration. According to the resonant frequencies and the intensities, the peaks at around 698 and 650, and 558 are assigned to four-coordinated OCeLa3 and six-coordinated OCeLa5 species, respectively. The results show that O-17 solid-state NMR spectroscopy can be used to study rare earth doped oxides for applicable functional materials.
{"title":"O-17 Solid-State NMR Studies of Ce3+ Doped La2O3","authors":"Z. Li, D. Weiping, Peng Luming","doi":"10.3969/J.ISSN.1001-4861.2013.00.399","DOIUrl":"https://doi.org/10.3969/J.ISSN.1001-4861.2013.00.399","url":null,"abstract":"In this paper, La2O3 doped with varied Ce3+ concentrations were synthesized via hydrothermal co-precipitation followed by high temperature calcined process in H-2/N-2 atmosphere. Three new peaks show up at 698, 650 and 558 in O-17 solid state NMR spectra due to Ce3+ doping. The intensies of these peaks increase with Ce3+ concentration. According to the resonant frequencies and the intensities, the peaks at around 698 and 650, and 558 are assigned to four-coordinated OCeLa3 and six-coordinated OCeLa5 species, respectively. The results show that O-17 solid-state NMR spectroscopy can be used to study rare earth doped oxides for applicable functional materials.","PeriodicalId":9986,"journal":{"name":"无机化学学报","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2013-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72526102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-10DOI: 10.3969/J.ISSN.1001-4861.2013.00.219
Chen Shanhu, G. Yi, Lan Li, Zhao Ming, Shi Zhonghua, Gong Maochu, Chen Yaoqiang
Two series of CeO2 materials were prepared by two different synthetic routes, i.e. the conventional ammonia precipitation route (CR) and the ammonium carbonate hydrolysis route (HA) using (NH4)(2)CO3 in the presence of hydrogen peroxide. The formation process and decomposition behavior of the precipitates were investigated by FTIR, Raman, thermogravimetric and differential thermal analysis (TG/DTA) and X-ray photoelectron spectroscopy (XPS). The results show that the as-prepared precipitate obtained by HA consists of O-2(2-), CO32- and OH- species. However, after hydrothermal digestion at 80 degrees C, the CO32- species is gradually hydrolyzed into OH- species. Although the chemical components of the digested precipitates prepared by these two routes are almost the same, the agglomeration of CeO2 particles is markedly modified. The CeO2 powder produced by HA exhibits higher thermal stability and better reduction property compared to that obtained by CR. After the heat treatment at 900 degrees C for 3 h, the CeO2 powder from HA route still remains a surface area of 27 m(2).g(-1).
{"title":"Preparation of Mesoporous CeO2 with High Thermal Stability by Ammonium Carbonate Hydrolysis Method","authors":"Chen Shanhu, G. Yi, Lan Li, Zhao Ming, Shi Zhonghua, Gong Maochu, Chen Yaoqiang","doi":"10.3969/J.ISSN.1001-4861.2013.00.219","DOIUrl":"https://doi.org/10.3969/J.ISSN.1001-4861.2013.00.219","url":null,"abstract":"Two series of CeO2 materials were prepared by two different synthetic routes, i.e. the conventional ammonia precipitation route (CR) and the ammonium carbonate hydrolysis route (HA) using (NH4)(2)CO3 in the presence of hydrogen peroxide. The formation process and decomposition behavior of the precipitates were investigated by FTIR, Raman, thermogravimetric and differential thermal analysis (TG/DTA) and X-ray photoelectron spectroscopy (XPS). The results show that the as-prepared precipitate obtained by HA consists of O-2(2-), CO32- and OH- species. However, after hydrothermal digestion at 80 degrees C, the CO32- species is gradually hydrolyzed into OH- species. Although the chemical components of the digested precipitates prepared by these two routes are almost the same, the agglomeration of CeO2 particles is markedly modified. The CeO2 powder produced by HA exhibits higher thermal stability and better reduction property compared to that obtained by CR. After the heat treatment at 900 degrees C for 3 h, the CeO2 powder from HA route still remains a surface area of 27 m(2).g(-1).","PeriodicalId":9986,"journal":{"name":"无机化学学报","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2013-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73008890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-07-10DOI: 10.3969/J.ISSN.1001-4861.2013.00.223
J. Gu, Y. Shao, K. Zhu
Under hydrothermal conditions, NdCl3 center dot 6H(2)O reacts with 3-H(2)CPOA (3-H(2)CPOA=3-carboxyphenoxyacetatic acid) and phen (phen=1,10-phenanthroline), producing a novel coordination polymer [Nd(3-CPOA)(1.5)(phen)](n) (1). Complex 1 crystallizes in monoclinic space group P2(1)/c, with a=0.982 7(8), b=1.140 6(10), c=2.115 8(19) nm, beta=90.574(9)degrees, V=2.371(4) nm(3), and Z=4. X-ray diffraction studies show that complex 1 possesses a three-dimensional framework structure based on a binuclear unit. Magnetic studies for complex 1 indicate the presence of stronger antiferromagnetic coupling between the adjacent NO ions. CCDC: 888765.
在水热条件下，NdCl3中心点6H(2)O与3- h (2)CPOA (3- h (2)CPOA=3-carboxyphenoxyacetatic acid)和phen (phen=1,10-phenanthroline)反应生成新型配位聚合物Nd(3-CPOA)(1.5)(phen)](n)(1)。配合物1在单斜空间群P2(1)/c中结晶，a=0.982 7(8)， b=1.140 6(10)， c=2.115 8(19) nm， β =90.574(9)度，V=2.371(4) nm(3)， Z=4。x射线衍射研究表明，配合物1具有基于双核单元的三维框架结构。配合物1的磁性研究表明相邻NO离子之间存在更强的反铁磁耦合。控烟条例:888765。
{"title":"Synthesis, Crystal Structure and Magnetic Properties of a Nd(III) Coordination Polymer Constructed by 3-Carboxyphenoxyacetate and 1,10-Phenanthroline","authors":"J. Gu, Y. Shao, K. Zhu","doi":"10.3969/J.ISSN.1001-4861.2013.00.223","DOIUrl":"https://doi.org/10.3969/J.ISSN.1001-4861.2013.00.223","url":null,"abstract":"Under hydrothermal conditions, NdCl3 center dot 6H(2)O reacts with 3-H(2)CPOA (3-H(2)CPOA=3-carboxyphenoxyacetatic acid) and phen (phen=1,10-phenanthroline), producing a novel coordination polymer [Nd(3-CPOA)(1.5)(phen)](n) (1). Complex 1 crystallizes in monoclinic space group P2(1)/c, with a=0.982 7(8), b=1.140 6(10), c=2.115 8(19) nm, beta=90.574(9)degrees, V=2.371(4) nm(3), and Z=4. X-ray diffraction studies show that complex 1 possesses a three-dimensional framework structure based on a binuclear unit. Magnetic studies for complex 1 indicate the presence of stronger antiferromagnetic coupling between the adjacent NO ions. CCDC: 888765.","PeriodicalId":9986,"journal":{"name":"无机化学学报","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2013-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84700130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-06-10DOI: 10.3969/J.ISSN.1001-4861.2013.00.193
Zhou You, Hao Jianwei, Liu Guo-sheng, Du Jianxin
Transition metal oxide (MO) can obviously influence the thermal decomposition process of ammonium polyphosphate (APP) to improve the flame retardant efficiency of intumescent flame retardant composites based on APP in polymer. ZnO, Fe2O3 and TiO2, in same amount were added into APP to study the influence of MO on thermal decomposition behavior of APP, and to analyze the evolution of chemical state of metallic atoms and phosphorus atom and crystal structure in the interaction processes by thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS) and X-ray powder diffraction (XRD) respectively. TGA and XPS spectra showed that MO could catalyze the releasing of NH3 and H2O of APP in the earlier period, and increase the high temperature residue in the later period due to the formation of metallic phosphate. The sequence of catalytic activity for the process of releasing of NH3 and H2O was as follows: ZnO>Fe2O3>TiO2, and that of cross-linking ability for thermal decomposition product P-O of APP was as follows: Fe2O3>ZnO>TiO2. XRD showed that APP could react with ZnO, Fe2O3 and TiO2 to produce Zn(PO3)(2), Fe-4(P2O7)(3) and TiP2O7, respectively, at high temperature.
{"title":"Influencing Mechanism of Transition Metal Oxide on Thermal Decomposition of Ammonium Polyphosphate","authors":"Zhou You, Hao Jianwei, Liu Guo-sheng, Du Jianxin","doi":"10.3969/J.ISSN.1001-4861.2013.00.193","DOIUrl":"https://doi.org/10.3969/J.ISSN.1001-4861.2013.00.193","url":null,"abstract":"Transition metal oxide (MO) can obviously influence the thermal decomposition process of ammonium polyphosphate (APP) to improve the flame retardant efficiency of intumescent flame retardant composites based on APP in polymer. ZnO, Fe2O3 and TiO2, in same amount were added into APP to study the influence of MO on thermal decomposition behavior of APP, and to analyze the evolution of chemical state of metallic atoms and phosphorus atom and crystal structure in the interaction processes by thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS) and X-ray powder diffraction (XRD) respectively. TGA and XPS spectra showed that MO could catalyze the releasing of NH3 and H2O of APP in the earlier period, and increase the high temperature residue in the later period due to the formation of metallic phosphate. The sequence of catalytic activity for the process of releasing of NH3 and H2O was as follows: ZnO>Fe2O3>TiO2, and that of cross-linking ability for thermal decomposition product P-O of APP was as follows: Fe2O3>ZnO>TiO2. XRD showed that APP could react with ZnO, Fe2O3 and TiO2 to produce Zn(PO3)(2), Fe-4(P2O7)(3) and TiP2O7, respectively, at high temperature.","PeriodicalId":9986,"journal":{"name":"无机化学学报","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2013-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87866786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-03-10DOI: 10.3969/J.ISSN.1001-4861.2013.00.051
Xu Zhen, Li Juan, Li Xinjun
CdSe/TiO2 nanotube array (TiO(2)NTA) film was modified by NixCo3-x,O-4 through the method of ammonia-evaporation induction growth. The films were characterized by X-ray diffraction, field emission scanning electron microscopy, energy dispersive spectroscopy, X-ray photoelectron spectroscopy and UV-Vis diffuse reflectance spectroscopy. To characterize the photoanodes activity of photoelectrochemical oxidation of water, the chopped linear sweep voltammetry was performed in a three-electrode system under simulated solar irradiation. The results show that CdSe/TiO(2)NTA is covered by a thin layer of NixCo3-x,O-4 with the spinel structure in which Ni and Co are both in divalent and trivalent states. The modification of NixCo3-x,O-4 on the CdSe/TiO(2)NTA can lower the overpotential of water oxidation by about 430 mV compared with the CdSe/TiO(2)NTA. The introduction of Ni into the structure of Co3O4 leads to the surface enhancement of trivalent cations (Ni3+ and Co3+) and consequently facilitates the oxidation of water.
{"title":"Effect of Ni_xCo_(3-x)O_4 Modification for CdSe/TiO_2 Nanotube Arrays on Activity of Photoelectrochemical Oxidation of Water","authors":"Xu Zhen, Li Juan, Li Xinjun","doi":"10.3969/J.ISSN.1001-4861.2013.00.051","DOIUrl":"https://doi.org/10.3969/J.ISSN.1001-4861.2013.00.051","url":null,"abstract":"CdSe/TiO2 nanotube array (TiO(2)NTA) film was modified by NixCo3-x,O-4 through the method of ammonia-evaporation induction growth. The films were characterized by X-ray diffraction, field emission scanning electron microscopy, energy dispersive spectroscopy, X-ray photoelectron spectroscopy and UV-Vis diffuse reflectance spectroscopy. To characterize the photoanodes activity of photoelectrochemical oxidation of water, the chopped linear sweep voltammetry was performed in a three-electrode system under simulated solar irradiation. The results show that CdSe/TiO(2)NTA is covered by a thin layer of NixCo3-x,O-4 with the spinel structure in which Ni and Co are both in divalent and trivalent states. The modification of NixCo3-x,O-4 on the CdSe/TiO(2)NTA can lower the overpotential of water oxidation by about 430 mV compared with the CdSe/TiO(2)NTA. The introduction of Ni into the structure of Co3O4 leads to the surface enhancement of trivalent cations (Ni3+ and Co3+) and consequently facilitates the oxidation of water.","PeriodicalId":9986,"journal":{"name":"无机化学学报","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2013-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72746435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-01-10DOI: 10.3969/J.ISSN.1001-4861.2013.00.027
Wu Guo-hao, Zheng Shu-kai, L. Xiao
The electronic structures and optical properties of pure anatase TiO2 and Bi-doped anatase TiO2 were calculated using the plane-wave ultra-soft pseudo-potential (PWPP) method based on the density functional theory (DFT). The results indicate the populations of Ti atoms decline and those of O atoms increase. The Bi doping introduces impurity energy level into the forbidden band. It was found that the impurity energy level is composed of Bi6s, O2p and Ti3d orbitals. The forbidden band width of the Bi-doped anatase TiO2 increases a little. But the detrimental effect arose from the enlargement of forbidden band is offset by the function of the impurity energy level, which results in a red shift of the absorption edge and a strong absorption ability for the Bi-doped anatase TiO2.
{"title":"First-Principles Calculation of Bi-Doped Anatase TiO2","authors":"Wu Guo-hao, Zheng Shu-kai, L. Xiao","doi":"10.3969/J.ISSN.1001-4861.2013.00.027","DOIUrl":"https://doi.org/10.3969/J.ISSN.1001-4861.2013.00.027","url":null,"abstract":"The electronic structures and optical properties of pure anatase TiO2 and Bi-doped anatase TiO2 were calculated using the plane-wave ultra-soft pseudo-potential (PWPP) method based on the density functional theory (DFT). The results indicate the populations of Ti atoms decline and those of O atoms increase. The Bi doping introduces impurity energy level into the forbidden band. It was found that the impurity energy level is composed of Bi6s, O2p and Ti3d orbitals. The forbidden band width of the Bi-doped anatase TiO2 increases a little. But the detrimental effect arose from the enlargement of forbidden band is offset by the function of the impurity energy level, which results in a red shift of the absorption edge and a strong absorption ability for the Bi-doped anatase TiO2.","PeriodicalId":9986,"journal":{"name":"无机化学学报","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2013-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86596977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-01-01DOI: 10.3969/J.ISSN.1001-4861.2013.00.302
G. Song, Qiao Sun, Y. Hou, Ruicai Zhan, Dong-Ming Wei, Zhan Shi, Y. Xing
Two novel structural copper complexes: [Cu 3 (Ipz) 3 ] (1) and [Cu (SO 4 )(Ipz 4 )] · 2H 2 O · CH 3 OH (2) were synthesized by the hydrothermal reaction and the solution method, respectively. The complexes were characterized by elemental analysis, IR spectroscopy, UV spectrum and single crystal X-ray diffraction. Structural analyses have revealed that the complex 1 is crystallized in the orthorhombic system with Pnma space group. The complex 2 is crystallized in the Triclinic system with P1 space group. In the structure of the two complexes, the oxidation state of Cu atoms are +1 and +2, respectively, the coordinate environment of the metal and the coordinate model of the ligand are absolutely different. In the complex 1, copper is a two coordination atom, connected with ligand forming a nine-membered ring. However, the complex 2 is a six coordination atom, using coordinate sulfate group to form an infinite chain. Additionally, by using the quantum chemistry method electronic characteristic of the two complexes were performed, in the mean time, the luminescent spectrum of complex 1 was analyzed.
{"title":"Synthesis, structure and quantum chemistry study of the 4-Iodopyrazole copper complexes","authors":"G. Song, Qiao Sun, Y. Hou, Ruicai Zhan, Dong-Ming Wei, Zhan Shi, Y. Xing","doi":"10.3969/J.ISSN.1001-4861.2013.00.302","DOIUrl":"https://doi.org/10.3969/J.ISSN.1001-4861.2013.00.302","url":null,"abstract":"Two novel structural copper complexes: [Cu 3 (Ipz) 3 ] (1) and [Cu (SO 4 )(Ipz 4 )] · 2H 2 O · CH 3 OH (2) were synthesized by the hydrothermal reaction and the solution method, respectively. The complexes were characterized by elemental analysis, IR spectroscopy, UV spectrum and single crystal X-ray diffraction. Structural analyses have revealed that the complex 1 is crystallized in the orthorhombic system with Pnma space group. The complex 2 is crystallized in the Triclinic system with P1 space group. In the structure of the two complexes, the oxidation state of Cu atoms are +1 and +2, respectively, the coordinate environment of the metal and the coordinate model of the ligand are absolutely different. In the complex 1, copper is a two coordination atom, connected with ligand forming a nine-membered ring. However, the complex 2 is a six coordination atom, using coordinate sulfate group to form an infinite chain. Additionally, by using the quantum chemistry method electronic characteristic of the two complexes were performed, in the mean time, the luminescent spectrum of complex 1 was analyzed.","PeriodicalId":9986,"journal":{"name":"无机化学学报","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88331314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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