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61.
62.
Heller DA Mayrhofer RM Baik S Grinkova YV Usrey ML Strano MS 《Journal of the American Chemical Society》2004,126(44):14567-14573
Gel electrophoresis and column chromatography conducted on individually dispersed, ultrasonicated single-walled carbon nanotubes yield simultaneous separation by tube length and diameter. Electroelution after electrophoresis is shown to produce highly resolved fractions of nanotubes with average lengths between 92 and 435 nm. Separation by diameter is concomitant with length fractionation, and nanotubes that have been cut shortest also possess the greatest relative enrichments of large-diameter species. Longer sonication time causes increased electrophoretic mobility in the gels; thus, ultrasonic processing determines the degree of both length and diameter separation of the nanotubes. The relative quantum yield decreases nonlinearly as the nanotube length becomes shorter. These techniques constitute a preparative, scalable method for separating nanotubes by two important attributes required for electronic and sensor applications. 相似文献
63.
A. Mayrhofer J. L. Sheldon und P. Cohen-Henriauez 《Fresenius' Journal of Analytical Chemistry》1936,107(3-4):128-129
Ohne Zusammenfassung 相似文献
64.
E. Maurer F. Hartmann F. Mylius F. Foerster G. Schoene H. Schenck Alexander Fischer G. T. Dougherty M. Dittrich A. Leonhard O. L. Barnebey J. V. Mc Crae R. L. Dowdell L. Jordan J. G. Thompson J. S. Acken J. H. S. Dickenson P. Herasymenko G. Pondélik Th. R. Cunningham R. J. Price C. H. Herty G. R. Fitterer J. E. Eckel J. J. Egan W. Crafts A. B. Kinzel 《Analytical and bioanalytical chemistry》1935,101(1-2):50-53
65.
M. Sanderova K. Sandera V. Stehlik K. Gandera L. Sattler J. E. Mull I. Lorge I. Sorgato F. Pridal A. Conlin C. Smolenski T. Pietrzykowski V. Dejmek F. Stern F. Kryz R. Ofner W. R. Fetzer J. W. Evans W. Z. Hassid M. Nurmia F. W. Zerban W. J. Hughes M. H. Wiley J. N. Taran Mary Scott E. S. West E. Roboz G. Vavrinecz M. Nordlund D. A. Magraw C. W. Sievert F. Massa M. Kminek S. Sanya H. Riehm H. C. S. de Whalley Ö. Fernández M. de Mingo G. Oschmjan M. Kudrjawzewa W. B. Sinclair E. T. Bartholomew K. P. Jácobsohn J. Mayrhofer E. Jekel A. Josz S. Molirískij 《Analytical and bioanalytical chemistry》1937,108(11-12):445-455
66.
G. Bonn H. Binder H. Leonhard O. Bobleter 《Monatshefte für Chemie / Chemical Monthly》1985,116(8-9):961-971
The alkaline degradation of cellobiose by 0.01 to 0.1N NaOH at temperatures between 60 and 85°C was studied. At the same time the formation of glucose and fructose was analyzed. At lower alkali concentrations, the production of acidic compounds lowered thepH to such an extent that the hydrolyzing reaction ceased within a relatively short time. At higher alkali concentrations thepH change is much smaller and first order reaction rates of the cellobiose degradation were obtained. Through the application of a simplified reaction mechanism the consecutive reactions of the glucose and fructose formation were evaluated mathematically.Dedicated to Prof. Dr.H. Tuppy on the occasion of his 60th birthday. 相似文献
67.
Olga Kasian Simon Geiger Karl J.J. Mayrhofer Serhiy Cherevko 《Chemical record (New York, N.Y.)》2019,19(10):2130-2142
Electrocatalyst degradation due to dissolution is one of the major challenges in electrochemical energy conversion technologies such as fuel cells and electrolysers. While tendencies towards dissolution can be grasped considering available thermodynamic data, the kinetics of material's stability in real conditions is still difficult to predict and have to be measured experimentally, ideally in‐situ and/or on‐line. On‐line inductively coupled plasma mass spectrometry (ICP‐MS) is a technique developed recently to address exactly this issue. It allows time‐ and potential‐resolved analysis of dissolution products in the electrolyte during the reaction under dynamic conditions. In this work, applications of on‐line ICP‐MS techniques in studies embracing dissolution of catalysts for oxygen reduction (ORR) and evolution (OER) as well as hydrogen oxidation (HOR) and evolution (HER) reactions are reviewed. 相似文献
68.
69.
W. A. Roth Fr Müller A. Eucken L. Meyer W. Wien F. Harm H. Lenz W. P. White W. Swietoslawski A. Dorabialska S. G. Lipsett F. M. G. Johnson O. Maass H. C. Dickinson E. F. Mueller A. Goetz H. v. Wartenberg H. Moehl F. Henning E. Berl H. Schildwächter K. Endell L. C. Glaser K. B. Eisenberg W. Eitel B. Lange M. Berek A. Szegvary R. Anschütz A. Kullmann H. Rheinboldt M. Kircheisen K. Rast O. Dischendorfer F. Emich C. M. Cooper E. V. Fasce A. W. Laubengayer R. B. Corey M. Wagenaar A. Mayrhofer K. Herzig K. Zauder P. Manicke H. Lauth 《Analytical and bioanalytical chemistry》1929,76(5-6):216-231
70.
C. von der Heide H. Straube W. Seifert J. Mayrhofer G. Jörgensen O. Krug und I. Rettinger 《Fresenius' Journal of Analytical Chemistry》1925,66(6):250-254
Ohne Zusammenfassung 相似文献