Formation of crystalline compounds and catalyst deactivation during SO2 oxidation in V2O5$z.sbnd;M2S2O7 (M = Na, K, Cs) melts
作者:S BOGHOSIAN
DOI:10.1016/0021-9517(89)90140-1
日期:1989.9
The formation of low-valence crystalline vanadium compounds was studied in the V2O5M2S2O7 (M = Na, K, Cs) unsupported melt systems in the temperature range 350–480 °C duringSO2oxidation with unconverted 10% SO2, 11% O2, and 79% N2 as the feed gas. A gas-molten-salt reactor system was built to provide the possibility of isolating the crystalline precipitates under operating conditions at any temperature
Abstract Proton conduction and crystal structure in CsHSO4 /SiO 2 composite composed of polycrystalline CsHSO4 and mesoporous silica particles were investigated based on conductivity measurement and characterizations using Raman spectroscopy, XRD, and differential thermal analysis. The conductivity of pure CsHSO4 abruptly changes at around 414 K (superprotonic phase transition), being accompanied
Proton-conductive electrolytes of CsHSO4composite were synthesized, and the influence of the matrix on their structure and protonconductivity was investigated at intermediatetemperatures. As the supporting matrix, heat-treated TiOSO 4 hydrate was used. When the matrix heat-treated at 300°C was employed, formation of new phases was observed in the composite during the heat-treatment at 200°C due
A thin, solid-state membrane H 2S electrochemical cell was developed and operated successfully at 150°C and 138 kPa to produce liquid sulfur and hydrogen in electrolysis mode. Anode catalyst ruthenium(IV) oxide/p-dichlorobenzene/cesium hydrogen sulfate (CsHSO 4 )/platinum black is found stable and sustainable over a period of 8 h. Sulfur does not block anode catalyst sites during this sustainable
开发了一种薄的固态膜 H 2 S 电化学电池,并在 150°C 和 138 kPa 下成功运行,以电解模式生产液态硫和氢。发现阳极催化剂氧化钌 (IV)/对二氯苯/硫酸氢铯 (CsHSO 4 )/铂黑在 8 小时内稳定且可持续。在这个可持续的运行期间,硫不会阻塞阳极催化剂位点。H 2 S 分裂过程随着CsHSO 4 晶体粒径的减小而增强。
Thermal, Conductivity, NMR, and Raman Spectroscopic Measurements and Phase Diagram of the Cs<sub>2</sub>S<sub>2</sub>O<sub>7</sub>−CsHSO<sub>4</sub> System
作者:Søren B. Rasmussen、Hind Hamma、Olga B. Lapina、Dzhalil F. Khabibulin、K. Michael Eriksen、Rolf W. Berg、Gerard Hatem、Rasmus Fehrmann
DOI:10.1021/jp030535p
日期:2003.12.1
The conductivity of the binary system Cs2S2O7−CsHSO4 has been measured at 20 different molten compositions in the full composition range and in the temperature range 430−750 K. From the obtained li...
二元体系 CS2S2O7−CsHSO4 的电导率已在全成分范围和 430−750 K 温度范围内的 20 种不同熔融成分下测量。从获得的锂...