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排序方式: 共有45条查询结果,搜索用时 15 毫秒
1.
Dr. Yang Chen Dr. Elzbieta Trzop Jesse D. Sokolow Prof. Dr. Philip Coppens 《Chemistry (Weinheim an der Bergstrasse, Germany)》2013,19(49):16651-16655
The structures of three newly synthesized phosphonate‐substituted polyoxotitanates are reported. The Ti/O core of [Ti4O(OEt)12(PhenylPO3)] ( 1 ) is the building block for two larger phosphonate‐substituted nanoclusters, [Ti25O26(OEt)36(PhenylPO3)6] ( 2 ) and [Ti26O26(OEt)39(PhenylPO3)6]Br ( 3 ). All compounds exhibit a not previously recognized triply bridging binding mode of the phosphonate anchor with short connecting Ti? O bonds, the average of which is 2.010(7) Å. Comparison with previously reported work suggests that the binding mode of the phosphonate anchor is strongly dependent on the structure of the underlying substrate. 相似文献
2.
A Molecular Approach to Self‐Supported Cobalt‐Substituted ZnO Materials as Remarkably Stable Electrocatalysts for Water Oxidation 下载免费PDF全文
Johannes Pfrommer Dr. Michael Lublow Anahita Azarpira Dr. Caren Göbel Marcel Lücke Dr. Alexander Steigert Martin Pogrzeba Dr. Prashanth W. Menezes Dr. Anna Fischer Dr. Thomas Schedel‐Niedrig Prof. Dr. Matthias Driess 《Angewandte Chemie (International ed. in English)》2014,53(20):5183-5187
In regard to earth‐abundant cobalt water oxidation catalysts, very recent findings show the reorganization of the materials to amorphous active phases under catalytic conditions. To further understand this concept, a unique cobalt‐substituted crystalline zinc oxide (Co:ZnO) precatalyst has been synthesized by low‐temperature solvolysis of molecular heterobimetallic Co4?xZnxO4 (x=1–3) precursors in benzylamine. Its electrophoretic deposition onto fluorinated tin oxide electrodes leads after oxidative conditioning to an amorphous self‐supported water‐oxidation electrocatalyst, which was observed by HR‐TEM on FIB lamellas of the EPD layers. The Co‐rich hydroxide‐oxidic electrocatalyst performs at very low overpotentials (512 mV at pH 7; 330 mV at pH 12), while chronoamperometry shows a stable catalytic current over several hours. 相似文献
3.
E. Nihoul G. Vortmann C. Meineke G. Lunge P. Naef Th. Salzer E. Kock W. Younger L. M. Norton M. Rosenbaum W. Spring Ed. Bourgeois N. Sokolow P. Maltschewski R. Otto C. Friedheim Fr. Stolba G. Linossier M. Lignon W. Gathorne Young R. Kayser H. Offermann A. Carnot V. Gasselin Th Petersen 《Analytical and bioanalytical chemistry》1896,35(1):200-211
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W. Dick A. Karl R. D. Evans Frau P. Curie F. Behounek W. Bothe N. E. Dorsey P. Ludewig W. A. Sokolow A. Piccard L. Meylan A. J. Allen J. A. C. Teegan A. S. Eve J. Katzmann C. L. Utterbeck D. Devaputra R. G. Franklin E. Witte H. A. Doerner und W. M. Hoskins 《Fresenius' Journal of Analytical Chemistry》1934,98(5-6):194-207
Ohne Zusammenfassung 相似文献
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We discuss the analysis of linear constant coefficient differential algebraic equations
on infinite dimensional Hilbert spaces. We give solution concepts and discuss solvability criteria which are mainly based
on Laplace transform. Furthermore, we investigate the decoupling of these systems motivated by the Kronecker normal form for
the finite dimensional case. Applications are given by the analysis of mixed systems of ordinary differential, partial differential
and differential algebraic equations. 相似文献