12240-15-2Relevant articles and documents
Generating New Cross-Relaxation Pathways by Coating Prussian Blue on NaNdF4 To Fabricate Enhanced Photothermal Agents
Yu, Zhongzheng,Hu, Wenbo,Zhao, Hui,Miao, Xiaofei,Guan, Yan,Cai, Weizheng,Zeng, Zhiping,Fan, Quli,Tan, Timothy Thatt Yang
, p. 8536 - 8540 (2019)
Cross-relaxation among sensitizers is commonly regarded as deleterious in fluorescent materials, although favorable in photothermal agents. Herein, we coated Prussian blue (PB) on NaNdF4 nanoparticles to fabricate core–shell nanocomplexes with new cross relaxation pathways between the ladder-like energy levels of Nd3+ ions and continuous energy band of PB. The photothermal conversion efficiency was improved exceptionally and the mechanism of the enhanced photothermal effect was investigated. In vivo photoacoustic imaging and photothermal therapy demonstrated the potential of the enhanced photothermal agents. Moreover, the concept of generating new cross-relaxation pathways between different materials is proposed to contribute to the design of all kinds of enhanced photothermal agents.
Size-controlled gold-catalyzed growth of Prussian blue nanopillars
Sunkari, Sailaja,Nagashima, Sayoko,Murata, Masaki,Nishihara, Hiroshi,Matsui, Yoshitaka,Nishio, Kazuyuki,Masuda, Hideki
, p. 406 - 407 (2006)
Size-dependent nanopillars of Prussian blue were obtained by chemical deposition technique and porous alumina membranes coated with a bottom gold layer. Copyright
14. Valence Delocalization in Prussian Blue Fe(III)43*xD2O, by Polarized Neutron Diffraction
Day, Peter,Herren, Fritz,Ludi, Andreas,Gudel, Hans Ulrich,Hulliger, Fritz,Givord, Dominique
, p. 148 - 153 (1980)
Polarized neutron diffraction has been used to investigate the spin delocalization from the high-spin Fe(III) sites to the low-spin Fe(II) in deuteriated Prussian Blue, Fe43*xD2O.Measuremants of the 111, 200, and 400 reflections were made on a powdered sample at 3 K and 4.8 T using a neutron wavelength of 1.074 A.The expectation value of S at the Fe(II) site is -0.008+/-0.028 corresponding to an upper limit of about 5percent of an electron for the spin delocalization.
Prussian blue nanowires fabricated by electrodeposition in porous anodic aluminum oxide
Luo, Haiqing,Chen, Xingguo,Zhou, Pingheng,Shi, Huigang,Xue, Desheng
, p. C567-C570 (2004)
Highly ordered prussian blue (PB) nanowire arrays were fabricated successfully for the first time by self-assembling in a nan-oporous anodic aluminum oxide template. The nanowires with different lengths and diameters could be obtained by controlling, respectively, the deposition time and the size of the nanohole in the template. The structure and morphology of the nanowires were characterized by X-ray diffraction, transmission electron microscopy, and selected area electron diffraction. The results showed each of the nanowires was a continuous and preferentially of single crystal with face-centered-cubic structure. The Curie temperature Tc of PB nanowires was lower with respect to that of PB bulk. The growth mechanism of the nanowire is also discussed.
STUDIES OF DIFFERENT HYDRATED FORMS OF PRUSSIAN BLUE
Ganguli, Sanjukta,Bhattacharya, Manoranjan
, p. 1513 - 1522 (1983)
Results of thermal gravimetric analysis, electrical conductivity and (1)H n.m.r. studies of Prussian Blue, Fe43+2+(CN6>3*nH2O, a classical mixed-valence compound exhibiting semiconducting behaviour in the temperature range 30-150 deg C, are presented.Three different stages of hydration together with the anhydrous form have been identified by thermal gravimetric analysis.The proton magnetic resonance investigation suggested that there are bound water molecules and electrical conductivity studies confirm the existence of these four forms by the four different values of the activation energy.Variations of the activation energy on hydration have been interpreted qualitatively in terms of the energy band and energy levels of Fe2+ and Fe3+.
SIMULTANEOUS EVOLUTION OF HYDROGEN AND OXYGEN BY WATER PHOTOLYSIS WITH PRUSSIAN BLUE AND TRIS(2,2'-BIPYRIDYL)RUTHENIUM(II) COMPLEX
Kaneko, Masao,Takabayashi, Naoki,Yamada, Akira
, p. 1647 - 1650 (1982)
Simultaneous evolution of hydrogen and oxygen gases was achieved by visible light irradiation of water containig prussian blue and tris(2,2'-bipyridyl)ruthenium(II) complex.The gases evolved were analyzed by gas chromatography and mass spectroscopy.The me
Eco-friendly porous iron(iii) oxide micromotors for efficient wastewater cleaning
Peng, Xia,Zhu, Hongli,Chen, Huijun,Feng, Xiaomiao,Liu, Ruiqing,Huang, Zhendong,Shen, Qingming,Ma, Yanwen,Wang, Lianhui
, p. 12594 - 12600 (2019)
We present catalytic micromotors based on iron(iii) oxides (Fe2O3) obtained by thermal decomposition of octahedral Prussian Blue (PB) microcrystals for efficient adsorption of organic pollutants in water. These porous Fe2O
Synthesis of ultrathin films of Prussian blue by successive ion adsorption technique
Moriguchi, Isamu,Kamogawa, Haruna,Hagiwara, Kaori,Teraoka, Yasutake
, p. 310 - 311 (2002)
Ultrathin films of Prussian blue (PB) were successfully prepared on substrates by the successive ion adsorption technique that consisted of alternate immersions of a substrate into solutions of Fe2+ and Fe(CN)63-. The PB films showed stable electrochemical redox and electrochromic properties.
Metal-organic-frameworks-derived general formation of hollow structures with high complexity
Zhang, Lei,Wu, Hao Bin,Lou, Xiong Wen
, p. 10664 - 10672 (2013/08/23)
Increasing the complexity of hollow structures, in terms of chemical composition and shell architecture, is highly desirable for both fundamental studies and realization of various functionalities. Starting with metal-organic frameworks (MOFs), we demonstrate a general approach toward the large-scale and facile synthesis of complex hollow microboxes via manipulation of the template-engaged reactions between the Prussian blue (PB) template and different alkaline substances. The reaction between PB microcubes with NaOH solution leads to the formation of Fe(OH)3 microboxes with controllable multishelled structure. In addition, PB microcubes will react with the conjugate bases of metal oxide based weak acids, generating multicompositional microboxes (Fe2O3/SnO2, Fe2O 3/SiO2, Fe2O3/GeO2, Fe2O3/Al2O3, and Fe 2O3/B2O3), which consist of uniformly dispersed oxides/hydroxides of iron and another designed element. Such complex hollow structures and atomically integrated multiple compositions might bring the usual physiochemical properties. As an example, we demonstrate that these complex hollow microboxes, especially the Fe2O 3/SnO2 composite microboxes, exhibit remarkable electrochemical performance as anode materials for lithium ion batteries.
Photo-induced charge transfer in Prussian blue analogues as detected by photoacoustic spectroscopy
Reguera,Marin,Calderon,Rodriguez-Hernandez
, p. 191 - 197 (2008/02/13)
The photo-induced charge transfer in four series of Prussian blue (PB) analogues was studied from photoacoustic spectra. In cobalticyanides the observed signals were assigned to a metal-to-ligand charge transfer, which appears as a shoulder below 450 nm, and to d-d transitions for Co(II), Ni(II) and Cu(II) complex salts. No evidence of metal-to-metal charge transfer was observed for this series, which is probably due to the high stability of low spin cobalt(III) in the hexacyanide complex. Photoacoustic spectra for ferricyanides are broad bands, which result particularly intense up to 750 nm. Such features were attributed to the overlapping of contributions from metal-to-ligand (a minor contribution from d-d transitions in the outer metal. The spectra for the ferrocyanides series are dominated by the metal-to-ligand charge transfer band below 550 nm, approximately 100 nm above this transition in cobalticyanides. Within the studied solids, the most intense and broad metal-to-metal charge transfer bands were found for a series of low spin Co(III) high spin Co(II) hexacyanoferrates(II,III) and with similar features also for ferric ferrocyanide (Prussian blue), assigned to Fe(II) → Co(III) and Fe(II) → Fe(III) photo-induced transition, respectively. The first of these transitions requires of more energetic photons to be observed, its maximum falls at 580 nm while for Prussian blue it is found at 670 nm. Prussian blue analogues are usually obtained as nanometric size particles and many of them have a microporous structure. The role of surface atoms on the observed charge transfer bands in the studied series of compounds is also discussed.
