Search results for "Platinum"
showing 10 items of 629 documents
CCDC 1483067: Experimental Crystal Structure Determination
2016
Related Article: H. Le Thi Hong, D. Dao Thi Bich, N. Nguyen Bich, L. Van Meervelt|2016|Acta Crystallogr.,Sect.E:Cryst.Commun.|72|912|doi:10.1107/S2056989016008872
CCDC 1483066: Experimental Crystal Structure Determination
2016
Related Article: H. Le Thi Hong, D. Dao Thi Bich, N. Nguyen Bich, L. Van Meervelt|2016|Acta Crystallogr.,Sect.E:Cryst.Commun.|72|912|doi:10.1107/S2056989016008872
CCDC 868793: Experimental Crystal Structure Determination
2014
Related Article: Evgeny Yu. Bulatov, Tatiana G. Chulkova, Irina A. Boyarskaya, Veniamin V. Kondratiev, Matti Haukka, Vadim Yu. Kukushkin|2014|J.Mol.Struct.|1068|176|doi:10.1016/j.molstruc.2014.04.010
Adsorption of gelatin during electrodeposition of copper and tin-copper alloys from acid sulfate electrolyte
2014
International audience; An acid Cu–Sn deposition bath was developed, and copper and copper–tin coatings were electrodeposited on polycrystalline platinum. The effect of gelatin on copper and copper–tin electrodeposition from acid sulfate solutions has been investigated by a variety of electrochemical methods (voltammetric studies and electrochemical quartz crystal microbalance) as well as by morphologic technique (scanning electron microscopy). The electrochemical results have shown that the overpotential is required when gelatin is added, indicating the presence of interaction between the additive and the coating. From the results of X-ray photoelectron spectroscopy, PM-IRRAS and cyclic vo…
Total oxidation of propane in vanadia-promoted platinum-alumina catalysts: Influence of the order of impregnation
2015
Differently prepared vanadium promoted Pt/alumina catalysts have been prepared, characterized and tested for propane total oxidation. V-promoted Pt/Al2O3 catalysts have shown remarkably higher catalytic activity than V-free Pt/Al2O3 catalyst. Among V-promoted Pt catalysts that prepared by coimpregnation gave the highest alkane conversions in the whole range of reaction temperatures studied. Factors such as Pt particle size or the oxidation state of platinum do not seem to be the responsible for the enhanced performance. Modification of the redox properties of the catalyst (i.e. high reducibility of vanadium species) likely provoked by the close contact between platinum particles and vanadiu…
Intermolecular hydrogen bonding in isostructural pincer complexes [OH-(t-BuPOCOPt-Bu)MCl] (M = Pd and Pt)
2019
In the crystal structure of the isostructural title compounds, namely {2,6-bis[(di-tert-butylphosphanyl)oxy]-4-hydroxyphenyl}chloridopalladium(II), [Pd(C22H39O3P2)Cl], 1, and {2,6-bis[(di-tert-butylphosphanyl)oxy]-4-hydroxyphenyl}chloridoplatinum(II), [Pt(C22H39O3P2)Cl], 2, the metal centres are coordinated in a distorted square-planar fashion by the POCOP pincer fragment and the chloride ligand. Both complexes form strong hydrogen-bonded chain structures through an interaction of the OH group in the 4-position of the aromatic POCOP backbone with the halide ligand. © 2019.
Possibility of direct electricity production from waste canola oil
2017
Powering high-efficiency devices, such as fuel cells, with waste products will allow for a broader development of renewable energy sources and utilisation of by- products. This publication presents the possibility of electrooxidation of the emulsion of waste rapeseed oil, prepared on the basis of the detergent Syntanol DS-10. The process of electrooxidation was carried out on platinum electrode in alkaline (KOH) and acidic (H 2 SO 4 ) electrolyte, in the temperature range of 293-333 K. In each analysed case the process of electrooxidation took place. The maximum current density obtained was 7 mA cm -2 . Thus, it has been shown that it is possible to generate electricity directly from the em…
Determination of platinum and iridium in reforming catalysts by second derivative and absorptiometric spectrophotometry
1991
Investigations on the spectrophotometric determination of platinum as a complex formed by tin(II)chloride in hydrochloric acid are reported. The determination of platinum was found to be interfered with by iridium, because it also forms a complex with tin(II) chloride. The features of the derivative absorption spectrophotometry for the quantitative determination of platinum and iridium was also studied. The analytical application of the method for the determination of platinum and iridium in catalysts was investigated.
A retrospective analysis of pegylated liposomal doxorubicin in ovarian cancer: do we still need it?
2012
Abstract Background Ovarian cancer (OC) is the sixth most common cancer in women. Currently, carboplatin/paclitaxel ± bevacizumab is the cornerstone of front-line treatment. Conversely, the therapeutic options for recurrent or progressive disease are not well defined. For platinum-sensitive patients the best therapeutic approach is still a re-challenge with a platinum-based regimen. Pegylated liposomal doxorubicin (PLD), is considered one of the most active therapeutic options for recurrent or progressive OC. In this retrospective mono-institutional analysis, we evaluated the impact of PLD on the outcome of OC patients. Patients and methods We performed the retrospective study on a cohort o…
Two consecutive clinical trials on cisplatin (CDDP), hepatic arterial infusion (HAI), and I.V. 5-fluorouracil (5-FU) chemotherapy for unresectable co…
1991
Several phase III clinical trials demonstrated that hepatic arterial chemotherapy for unresectable colorectal liver metastases is able to provide significantly higher response rates than those obtained by systemic route: in more than 500 patients collected from 6 randomized trials, the median values of objective response rates were 55% after fluoxuridine (FUdR) continuous hepatic arterial infusion (HAI) vs. 18.5% after FUdR or 5-fluorouracil (5-FU) intravenous (i.v.) chemotherapy. Furthermore, the majority of those studies reported that median survival increased in the patient subgroups treated with intrahepatic chemotherapy, even if not always statistically significant [1-6]. Certainly, FU…