Results 41 to 50 of about 75,200 (296)

Laboratory photo-chemistry of covalently bonded fluorene clusters: observation of an interesting PAH bowl-forming mechanism

, 2019
The fullerene C$_{60}$, one of the largest molecules identified in the interstellar medium (ISM), has been proposed to form top-down through the photo-chemical processing of large (more than 60 C-atoms) polycyclic aromatic hydrocarbon (PAH) molecules. In
Chen, Tao, Linnartz, Harold, Si, Yubing, Tielens, Alexander G. G. M., Zhang, Weiwei, Zhen, Junfeng   +5 more
core   +1 more source

Probing the C-H Activation of Linear and Cyclic Ethers at (PNP)Ir [PDF]

, 2009
Interaction of the amido/bis(phosphine)-supported (PNP)Ir fragment with a series of linear and cyclic ethers is shown to afford, depending on substrate, products of α,α-dehydrogenation (carbenes), α,β-dehydrogenation (vinyl ethers), or decarbonylation ...
Chen, Chun-Hsing, Foxman, Bruce M., Grubbs, Robert H., Ozerov, Oleg V., Timpa, Samuel D., Whited, Matthew T., Zhu, Yanjun   +6 more
core   +1 more source

Combined dehydrogenation of glycerol with catalytic transfer hydrogenation of H2 acceptors to chemicals: Opportunities and challenges

Frontiers in Chemistry, 2022
Catalytic transformation of low-cost glycerol to value-added lactic acid (LA) is considered as one of the most promising technologies for the upgradation of glycerol into renewable products.
Guangyu Zhang, Jian Zhao, Xin Jin, Yanan Qian, Mingchuan Zhou, Xuewu Jia, Feng Sun, Jie Jiang, Wei Xu, Bing Sun   +9 more
doaj   +1 more source

Relaxation and derelaxation of pure and hydrogenated amorphous silicon during thermal annealing experiments [PDF]

, 2010
The structural relaxation of pure amorphous silicon (a-Si) and hydrogenated amorphous silicon (a-Si:H) materials, that occurs during thermal annealing experiments, has been analysed by Raman spectroscopy and differential scanning calorimetry. Unlike a-Si,
Alzina, F., Bertomeu, J., Cabarrocas, P. Roca i, Farjas, J., Kail, F., Nos, O., Roura, P., Secouard, C.   +7 more
core   +2 more sources

EFFECT OF METAL OXIDE ADDITIONS TO V-BASED COMPLEX OXIDE CATALYSTS ON OXIDATIVE DEHYDROGENATION OF BUT-1-ENE [PDF]

, 2020
Buta-1,3-diene (BD), one of the most important products in the petrochemical industry, is mainly produced through the endothermic steam cracking of naphtha.
Fuku Kojiro, Hatayama Junsuke, Ikenaga Naoki, 池永 直樹, 畑山 順介, 福 康二郎   +5 more
core   +1 more source

Influence of structural-dimensional factor and catalytically active additives of Fe2O3/Cr2O3 in α-Al2O3-based membranes on hydrocarbon dehydrogenation

Journal of Asian Ceramic Societies, 2021
A porous, catalytically active membrane based on α-Al2O3 powder with ultrafine additives of MgO+SiC+SiO2 and catalytically active components of Cr2O3 + Fe2O3 was synthesized in one stage.
Valerii Ivanovich Uvarov, Roman Dmitrievich Kapustin, Andrei Olegovich Kirillov, Vazgen Edvardovich Loryan   +3 more
doaj   +1 more source

Toward Stable Multivalent Metal Batteries: Understanding the Interfacial Chemistry for Magnesium and Calcium Metal Anodes

Advanced Functional Materials, EarlyView.
Interphase chemistry governs the stability of multivalent metal batteries. We summarize state‐of‐the‐art developments in calcium and magnesium metal batteries by focusing on the correlation among electrolytes, interphase layers, and the electrochemical performance of corresponding metal anodes.
Huijun Lin, Qi Meng, Juncai Long, Chuheng Cao, Zheng‐Long Xu   +4 more
wiley   +1 more source

Amine-Functionalized Natural Halloysite Nanotubes Supported Metallic (Pd, Au, Ag) Nanoparticles and Their Catalytic Performance for Dehydrogenation of Formic Acid

Nanomaterials, 2022
In today’s age of resource scarcity, the low-cost development and utilization of renewable energy, e.g., hydrogen energy, have attracted much attention in the world.
Limin Song, Kaiyuan Tan, Yingyue Ye, Baolin Zhu, Shoumin Zhang, Weiping Huang   +5 more
doaj   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

Synthesis of N,O-Chelating Hydrazidopalladium Complexes from 1,2-Bis(trifluoroacetyl)hydrazine

Inorganics, 2021
N,O-chelating dicarbonylhydrazido-palladium complexes were synthesized by treatment of 1,2-bis(trifluoroacetyl)hydrazine with a mixture of a Pd(0) source, [Pd(dba)2] (DBA = dibenzylideneacetone), and four-electron donors including 1,3-bis ...
Yoshihito Kayaki, Tomohiro Hayakawa, Takao Ikariya   +2 more
doaj   +1 more source