Chromium silsesquioxane based synthesis and characterization of a microporous Cr–Si–O material
文献情報
The controlled calcination of the chromium containing polyhedral oligosilsesquioxane (c-C5H9)7Si7O9- (OSiMe3)O2CrO2, 3b, monitored by MS analysis of the evolved gases and thermogravimetry measurements, led to the formation of a microporous Cr–Si–O amorphous mixed oxide containing 10.2 wt.% of chromium. The textural properties of the material as well as the speciation and dispersion of the chromium oxide on the silica surface were investigated by the use of nitrogen physical adsorption, XRD, XPS as well as DRS, RS and IR techniques. The nitrogen physical adsorption indicates a high surface area, a rather large pore volume and a very narrow pore size distribution around 6 Å diameter. The spectroscopic analysis of the material suggests a rather high dispersion of the chromium oxide species on the silica surface mainly as monochromate and to a certain extent as dichromate and clusters of Cr2O3. The material was briefly tested in the ammonia oxidation reaction and was found to have a catalytic activity, which was slightly higher than that of a chromium oxide on a silica reference catalyst.
関連文献
Long-range surface plasmon resonance and surface-enhanced Raman scattering on X-shaped gold plasmonic nanohole arrays
Daniel David Galvan, Guowen Meng, Qiuming Yu
DOI: 10.1039/C7CP04564F
Dispersion interactions in silicon allotropes
Antti J. Karttunen, Denis Usvyat, Martin Schütz, Lorenzo Maschio
DOI: 10.1039/C6CP08873B
Two-photon absorption in a series of 2,6-disubstituted BODIPY dyes
Leonardo W. T. Barros, Thiago A. S. Cardoso, Angela Bihlmeier, Dominik K. Kölmel, Carlos H. Brito Cruz, Lazaro A. Padilha
DOI: 10.1039/C6CP07849D
Atomic structure of Mg-based metallic glasses from molecular dynamics and neutron diffraction
Anastasia Gulenko, Louis Forto Chungong, Junheng Gao, Iain Todd, Alex C. Hannon, Richard A. Martin
DOI: 10.1039/C6CP03261C
Increased thermal stability of activated N2 adsorbed on K-promoted Ni{110}
Tao Liu, Israel Temprano, Stephen J. Jenkins
DOI: 10.1039/C7CP01694H
Humidity-induced formation of water channels in supramolecular assemblies of wedge-shaped amphiphiles: the effect of the molecular architecture on the channel topology
A. Dolgopolov, K. N. Grafskaia, D. E. Demco, X. Zhu, M. Möller
DOI: 10.1039/C6CP08087A
Tunable AIEE fluorescence constructed from a triphenylamine luminogen containing quinoline – application in a reversible and tunable pH sensor
Mengmeng Zhang, Wen Yang, Tingfeng Gong, Weiqun Zhou, Renyu Xue
DOI: 10.1039/C7CP03234J
Multiscale simulations for understanding the evolution and mechanism of hierarchical peptide self-assembly
Qianli Zou
DOI: 10.1039/C7CP01923H
Compositional phase diagram and microscopic mechanism of Ba1−xCaxZryTi1−yO3 relaxor ferroelectrics
Shi-Yu Liu, Yang Meng, Shiyang Liu, De-Jun Li, Yaping Li, Yingdi Liu, Yaogen Shen, Sanwu Wang
DOI: 10.1039/C7CP04530A
A ground state potential energy surface for HONO based on a neural network with exponential fitting functions
Ekadashi Pradhan, Alex Brown
DOI: 10.1039/C7CP04010E
こちらもおすすめ
「邻羟基阿托伐他汀内酯标准品」に適用される法規ガイドelinesは何ですか?
CAS番号163217-74-1の「邻羟基阿托伐他汀内酯标准品」は、GHS分類では危険物に分類されず、主にREACH規則とFDA/EPAの管理対象となります。R...
メチル(3R)-3-アミノ-2,3-ジヒドロ-1-ベンゾファンラニン-5-カルボイル酸塩塩酸塩の主な用途は何ですか?
メチル(3R)-3-アミノ-2,3-ジヒドロ-1-ベンゾファンラニン-5-カルボイル酸塩塩酸塩は、医薬品や合成化学の研究に広く用いられます。また、特定の薬物の前...
トランス-4-メチルピロリジン-3-オール塩酸塩はどのように合成されますか?
トランス-4-メチルピロリジン-3-オール塩酸塩は、4-メチルピロリジンの塩酸塩化によって合成されます。一般的な合成方法では、4-メチルピロリジンを塩酸に加えて...
硫雜環丁烷-1,1-二氧化物は安全ですか?
硫雜環丁烷-1,1-二氧化物は安全ではありません。毒性は報告されていませんが、高温下で分解し、可燃性があるため、高圧ガスは注意が必要です。密閉した容器で保管し、...
9-ヒドロキシエリプチシネ塩酸塩はどのように合成されますか?
9-ヒドロキシエリプチシネ塩酸塩は、エリプチシネから塩酸を添加することで合成されます。選択性は高いですが、収率は約70%です。
5-塩素-2-(メチルアミノ)フェニル-(2-塩素フェニル)メタン酮の物理化学的性質は何ですか?
5-塩素-2-(メチルアミノ)フェニル-(2-塩素フェニル)メタン酮のCAS番号は5621-86-3です。この化合物は白色の結晶性粉末で、分子量は415.03で...
1-[2-(4-甲氧基-苯氧基)-乙基]-哌嗪はどのように保存すればよいですか?
1-[2-(4-甲氧基-苯氧基)-乙基]-哌嗪は、直射日光を避けて暗所に、室温(15-25℃)で保管し、密閉容器に入れることで安定性を保つことができます。
2-[3-(4-甲氧基フェニル)プロピル]-4,4,5,5-四メチル-1,3,2-ドイボロロールアンの主な用途は何ですか?
2-[3-(4-甲氧基フェニル)プロピル]-4,4,5,5-四メチル-1,3,2-ドイボロロールアンは、医薬品の合成、有機合成化学、および新材料の研究で使用され...
掲載誌
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.










![1,1',1'',1'''-[Disulfanediylbis(carbonothioylnitrilo)]tetraethane structure 1,1',1'',1'''-[Disulfanediylbis(carbonothioylnitrilo)]tetraethane structure](https://static.chemtradehub.com/structs/97-/97-77-8-f3e4.webp)

![5-Bromo-1H-pyrrolo[2,3-b]pyridine structure 5-Bromo-1H-pyrrolo[2,3-b]pyridine structure](https://static.chemtradehub.com/structs/183/183208-35-7-2d72.webp)

