Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Corrosion stability of SUS316L HVOF sprayed coatings as lightweight bipolar plate materials in PEM fuel cells (2004)
    Bradford : Emerald
    Anti-corrosion 51 (2004), S. 136-142 
    Details
    ISSN: 0003-5599
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: This study investigated the corrosion stability of high velocity oxy-fuel (HVOF) spray SUS316L coatings on aluminium substrate as lightweight bipolar plate materials for proton exchange membrane fuel cells (PEMFC). Contact resistance, microhardness and structure of the coatings were characterised using a four-point probe, pneumatic microhardness, XRD and scanning electron microscope techniques. Preliminary electrochemical results indicate that the SUS316L coated plates significantly lowered the corrosion current of the aluminium substrate by more than one order of magnitude. Corrosion stability in relation to the coating thickness is discussed in terms of the structure composition and transpassivity of chromium.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/00035590410523238
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Factors affecting the ability of dental cements to alter the pH of lactic acid solutions (2000)
    Oxford, UK : Blackwell Science Ltd
    Journal of oral rehabilitation 27 (2000), S. 0 
    Details
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Two related studies have been carried out to determine the effect of (a) powder:liquid ratio and (b) relative amounts of cement on the extent of buffering of a lactic acid storage solution using zinc polycarboxylate and glass–ionomer cements (both water-activated). The effect of varying the powder:liquid ratio was found to be slight and not statistically significant. On the other hand, increasing the numbers of specimens in a given volume of storage solution was found to have a significant influence on the final pH (at the 0·0005 level of significance). The fact that powder:liquid ratio did not affect the final pH led to the conclusion that attack occurs mainly at the matrix of these cements, confirming previous findings about the acid erosion process. The finding that increasing the relative amount of cement to acid storage solution strongly influenced pH suggested that, under clinical conditions, buffering would be important. When five specimens were used, the final pH corresponded to that of arrested caries, from which it was concluded that these cements have the ability to be cariostatic in vivo.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2842.2000.00607.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    4-(p-Nitrobenzyl)Pyridine as a spray reagent for organophosphorus pesticides and some of their breakdown products on thin-layer chromatograms (1967)
    Springer
    Bulletin of environmental contamination and toxicology 2 (1967), S. 279-288 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01684375
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Gas chromatographic analysis of malathion in water and in fish (1968)
    Springer
    Bulletin of environmental contamination and toxicology 3 (1968), S. 155-163 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01684451
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Synthesis and structural studies on bivalent metal complexes of benzenesulphonylhydrazine (1987)
    Springer
    Transition metal chemistry 12 (1987), S. 125-127 
    Details
    ISSN: 1572-901X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Benzenesulphonylhydrazine (HB) reacts with bivalent metal ions either in the keto-or enol forms. The complexes have been characterized by spectral (u.v., i.r., n.m.r.,), magnetic and thermal (d.t.a., d.t.g, t.g., d.s.c.) measurements. I.r. spectra suggest that HB is monodentate coordinatingvia NH or NH2, depending on the medium of the reaction. The participation of the O=S=O group in bondingvia bridge-formation in a polymeric chain is also considered. The substitution of ethanol in the CoII complex, [(CoB2EtOH)n], by H2O, pyridine or acetonitrile was also investigated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01022337
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Mononuclear and binuclear chelates derived from potassium benzenesulfonyldithiocarbazate (1997)
    Springer
    Transition metal chemistry 23 (1997), S. 101-103 
    Details
    ISSN: 1572-901X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Benzenesulfonyldithiocarbazate (PhSO2NHNHCSS−) (HBDC−) complexes of CoII, NiII, ZnII, CdII, PdII, PbII, CuI and AgI have been prepared and characterized by elemental analyses, molar conductivities, spectral (vis., i.r, n.m.r.), thermal (t.g.a., d.t.a.) and magnetic moment measurements. The molar conductivities for the complexes lie in the non-electrolyte range. The i.r. spectral data indicate that KHBDC behaves either as monoanionic bidentate or dianionic tridentate ligand. The O=S=O group participates in bonding via bridge formation in dimeric (1:1) complexes. Different stereochemistries are proposed for the CoII, NiII and PdII complexes on the basis of the spectral and magnetic studies. T.g.a. and d.t.a. data suggest a mechanism for degradation of the complexes as a function of temperature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006922404846
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Structural studies of 4-benzamido-1-o-aminoacetophenone-3-thiosemicarbazone complexes (1989)
    Springer
    Transition metal chemistry 14 (1989), S. 209-212 
    Details
    ISSN: 1572-901X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Complexes of CuII, NiII, CoII, ZnII, CdII and HgII with 4-benzamido-1-o-aminoacetophenone-3-thiosemicarbazone (H2BATS) are reported and have been characterized by elemental analyses, molar conductivities, magnetic moments, spectral (visible, i.r.) and thermal (d.t.a., t.g., d.t.g.) measurements. I.r. spectra show that H2BATS behaves as a dianionic, monoanionic or neutral tetradentate ligand or as a monoanionic tridentate ligand. [Cu2(H2BATS)Cl2]·2H2O and [Cu2(H2BATS)Ac2]·2H2O complexes are diamagnetic while [Co(HBATS)OH]·2H2O and [Ni(HBATS)OH]·2H2O are octahedral. All the complexes are non-electrolytes. Generally, the solid metal acetate complexes have a unique decomposition exotherm profile which can be used as a rapid and sensitive tool for the detection of acetate-containing complexes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01043797
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Ligational, thermal, corrosion inhibition and antimicrobial properties of salicylidinebenzenesulphonylhydrazone (1989)
    Springer
    Transition metal chemistry 14 (1989), S. 371-374 
    Details
    ISSN: 1572-901X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Complexes of CuII, CoII, NiII, CdII, ZnII and HgII with salicylidinebenzenesulphonylhydrazone (HSBS) have been prepared and characterized by elemental analyses, molar conductivities, magnetic moments, spectral (visible, i.r., n.m.r.) and thermal (d.t.a., t.g., d.t.g.) measurements. The magnetic and spectral studies confirm that the NiII complex is square, whereas the CoII complex is tetrahedral. The molar conductivities for the complexes lie in the non-electrolyte range. The corrosion inhibition of aluminium using HSBS was studied by chemical and electrochemical methods. Also, the antimicrobial activities of HSBS and its complexes have been investigated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01032513
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Mononuclear and binuclear chelates of biacetylmonoxime picolinoylhydrazone (1999)
    Springer
    Transition metal chemistry 24 (1999), S. 659-665 
    Details
    ISSN: 1572-901X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Mononuclear and binuclear chelates of biacetylmonoxime picolinoylhydrazone (H2BMPcH) with CrIII, FeIII, CoII, NiII, CuII, ZnII, CdII, PdII and UO2 2+ have been prepared. Elemental analyses, molar conductivities, spectral (u.v., visible, i.r., n.m.r., e.s.r.), thermal (t.g., d.t.g., d.t.a.) and magnetic susceptibility measurements have been used to characterize the chelates. The i.r. spectral data indicate that H2BMPcH behaves in a bidentate, tridentate and/or tetradentate manner and the hydrazonic azomethine nitrogen constituents the chelating backbone in all chelates. Based on magnetic and spectroscopic data, the structures for the chelates are proposed as follows: tetrahedral for [Co(HBMPcH)(H2O)]Cl, octahedral for [Co(HBMPcH)2], [Cr(HBMPcH)Cl(H2O)]2Cl2, [Fe(HBMPcH)Cl-(H2O)]2Cl2, [Ni(BMPcH)(H2O)2], square-planar for (Ni(HBMPcH)Cl], [Pd(HBMPcH)Cl], [Cu(HBMPcH)(H2O)]Cl and tetragonally distorted octahedral for [Cu(BMPcH)(H2O)2]2 chelates. Generally, the solid metal acetate complexes have a unique decomposition exotherm profile which can be used as a rapid and sensitive tool for the detection of acetate-containing complexes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006936101143
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...