Interaction of hydrogen with surfaces of silicates: single crystal vs. amorphous
文献情報
Jiao He, Paul Frank, Gianfranco Vidali
We have studied how the formation of molecular hydrogen on silicates at low temperature is influenced by surface morphology. At low temperature (<30 K), the formation of molecular hydrogen occurs chiefly through weak physical adsorption processes. Morphology then plays a role in facilitating or hindering the formation of molecular hydrogen. We studied the formation of molecular hydrogen on a single crystal forsterite and on thin films of amorphous silicate of general composition (FexMg(x−1))2SiO4, 0 < x < 1. The samples were studied ex situ by Atom Force Microscopy (AFM), and in situ using Thermal Programmed Desorption (TPD). The data were analysed using a rate equation model. The main outcome of the experiments is that TPD features of HD desorbing from an amorphous silicate after its formation are much wider than the ones from a single crystal; correspondingly typical energy barriers for diffusion and desorption of H, H2 are larger as well. The results of our model can be used in chemical evolution codes of space environments, where both amorphous and crystalline silicates have been detected.
関連文献
An efficient rough vacuum-chlorinated separation method for the recovery of indium from waste liquid crystal display panels
En Ma, Rixin Lu, Zhenming Xu
DOI: 10.1039/C2GC36241D
Microbial biodegradation and metabolite toxicity of three pyridinium-based cation ionic liquids
Kathryn M. Docherty, Michelle V. Joyce, Konrad J. Kulacki, Charles F. Kulpa
DOI: 10.1039/B919154B
Synthesis of substituted amines and isoindolinones: catalytic reductive amination using abundantly available AlCl3/PMHS‡
Vishal Kumar, Sushila Sharma, Upendra Sharma, Bikram Singh, Neeraj Kumar
DOI: 10.1039/C2GC36305D
Mechanochemistry of magnesium oxide revisited: facile derivatisation of pharmaceuticals using coordination and supramolecular chemistry
Ernest H. H. Chow, Fiona C. Strobridge, Tomislav Friščić
DOI: 10.1039/C0CC01337D
Turning renewable resources into value-added polymer: development of lignin-based thermoplastic
Tomonori Saito, Rebecca H. Brown, Marcus A. Hunt, Deanna L. Pickel, Joseph M. Pickel, Jamie M. Messman, Frederick S. Baker, Martin Keller, Amit K. Naskar
DOI: 10.1039/C2GC35933B
Enzymes in neoteric solvents: From one-phase to multiphase systems
Pedro Lozano
DOI: 10.1039/B919088K
Syntheses of three members of A(II)M(IV)(PO4)2: luminescence properties of PbGe(PO4)2 and its Eu3+-doped powders
Wei-Long Zhang, Chen-Sheng Lin, Zhang-Zhen He, Hao Zhang, Zhong-Zhen Luo, Wen-Dan Cheng
DOI: 10.1039/C3CE40936H
Formation of 0D M5L2 helicate cage and 1D loop-and-chain complexes: stepwise assembly and catalytic activity
Lu-Yin Zhang, Yu Liu, Kang Li, Cheng Yan, Shi-Chao Wei, Yong-Xin Chen
DOI: 10.1039/C3CE40845K
こちらもおすすめ
5-苄基四氢吡咯并[3,4-c]吡咯-1,3[2H,3ah]-二酮の主な用途は何ですか?
5-苄基四氢吡咯并[3,4-c]吡咯-1,3[2H,3ah]-二酮は、主に薬理学的研究と合成化学に使用されます。また、特定の医薬品の合成原材料としても利用されま...
唾液酸路易ス Aを取り扱う際の実験室安全事項は何ですか?
唾液酸路易ス Aの取り扱いでは、個別の防護具(PPE)が必要で、手袋、顔面保護具、防塵マスクを着用します。ドラフトチャンバーを使用し、漏洩時の適切な処理を行うこ...
タルトブチル ((1-(2-クロロアセチル)ピペリジン-4-イルメチル)カーバamatはどの業界で使用されていますか?
タルトブチル ((1-(2-クロロアセチル)ピペリジン-4-イルメチル)カーバamatは、医薬品業界、ポリマー業界、センサー技術、半導体業界などで使用されていま...
3-烯丙基-2-羟基苯甲醛の物理化学的性質は何ですか?
3-烯丙基-2-羟基苯甲醛のCAS番号は24019-66-7です。物化性質としては、白色結晶性粉末で、分子量は174.22です。この化合物は水に溶けやすく、反応...
乳清酸 Potassium Orotateとは何ですか?
乳清酸 Potassium Orotateは、CAS番号24598-73-0の化合物で、乳清酸と Potassium(カリウム)による塩基です。化学式はC7H7...
4-甲基苯磺酸异丙酯はどの業界で使用されていますか?
4-甲基苯磺酸异丙酯は医薬品業界で広く使用されています。また、ポリマーの増塑剤や半導体製造におけるセンサー材料としても使用されることがあります。
6-(3- Florobenzen)-N-[1-(2,2,2- Trifluoroethyl)-4-Piperidinyl]-3-Pyridinycarboxamideはどの業界で使用されていますか?
6-(3-氟苯基)-N-[1-(2,2,2-三氟乙基)-4-哌啶基]-3-吡啶羧酰胺は医薬品産業で広く使用されており、その特性は抗炎症作用や抗ウイルス作用など、...
左西孟旦はどのように合成されますか?
左西孟旦は、3-[(2-メチルフェニル)-2-(4-メチルフェニル)-1-オキシエチル]-1,2,4-トリTürkiyeン-5-カルボン酸と4-メチルフェニル-...
3-乙氧基哌啶盐酸盐に適用される法規ガイドラインは何ですか?
CAS番号1159826-79-5の3-乙氧基哌啶盐酸盐は、GHS分類ではイエローカテゴリーに分類され、毒性物質として扱われます。REACH規則では、製造または...
Diethyl (hydroxymethyl)phosphonateの主な用途は何ですか?
Diethyl (hydroxymethyl)phosphonateは、医薬品の製造や農薬、合成化学の一部として利用されます。
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.











![2-Methyl-2-propanyl 4-[3-(aminomethyl)phenyl]-1-piperazinecarboxylate structure 2-Methyl-2-propanyl 4-[3-(aminomethyl)phenyl]-1-piperazinecarboxylate structure](https://static.chemtradehub.com/structs/889/889948-55-4-5c12.webp)


