Results 81 to 90 of about 5,849 (219)

CO2 Hydrogenation to Light Olefins and Single Hydrocarbons: Active Sites and Synergy in Oxide–Zeolite Catalysts

Carbon Neutralization, Volume 5, Issue 3, May 2026.
This work systematically reviews oxide–zeolite catalysts, summarizing the types of oxide active sites, regulation strategies for zeolites in selective hydrocarbon synthesis, and highlighting the crucial role of oxide–zeolite interactions. ABSTRACT Catalytic CO2 hydrogenation to light olefins and single hydrocarbons represents a crucial pathway for ...
Xiaohong Guo, Pengwei Li, Lingqing Kong, Peixiang Shi, Yanchun Li, Congming Li   +5 more
wiley   +1 more source

High-resolution 27Al MAS NMR spectroscopic studies of the response of spinel aluminates to mechanical action [PDF]

, 2011
The response of the local structure of various types of spinel aluminates, ZnAl2O4 (normal spinel), MgAl2O4 (partly inverse spinel), and Li0.5Al2.5O4 (fully inverse spinel), to mechanical action through high-energy milling is investigated by means of ...
Becker, Klaus-Dieter, Bergmann, Ingo, Feldhoff, Armin, Grey, Clare P., Hahn, Horst, Heitjans, Paul, Indris, Sylvio, Šepelák, Vladimir   +7 more
core   +2 more sources

Synthesis of MgAl2O4 (Spinel) Powder Using MgCl2.

Journal of the Ceramic Society of Japan, 2001
In order to develop a novel synthetic method for MgAl2O4 powder, a mixture consisting of Al2O3 and MgCl2 (1:10 molar ratio) was heated. As raw materials, two types of Al2O3; α-Al2O3 platelets and γ-Al2O3 powder and MgCl2 were used. When the mixture consisting of α-Al2O3 platelets and MgCl2 was heated at 750°C for 2h, MgAl2O4 powder with high ...
Shinobu HASHIMOTO, Akira YAMAGUCHI
openaire   +2 more sources

Liquidus of MgO and MgAl2O4 in the CaO‐MgO‐Al2O3 System at 1550 and 1600°C

Journal of the American Ceramic Society, Volume 109, Issue 5, May 2026.
ABSTRACT In this study, the liquidus of MgO and MgAl2O4 spinel phase in the CaO‐MgO‐Al2O3 system at 1550 and 1600°C were experimentally investigated using a classical quenching method. In order to examine the liquidus composition accurately, the equilibration was carried out using four different ways using the combinations of Pt and ceramic (MgO and ...
Dahee Gwak, Jaesung Lee, In‐Ho Jung
wiley   +1 more source

The effect of the regular solution model in the condensation of protoplanetary dust

, 2011
We utilize a chemical equilibrium code in order to study the condensation process which occurs in protoplanetary discs during the formation of the first solids.
Allende, Allende, Anderson, Anderson, Asimow, Asplund, Beckett, Belov, Benisek, Bergin, Birnstiel, Bodsworth, Bouwman, Brauer, Brownlee, Brownlee, Byerley, Carpenter, Charlu, Conard, Darken, DeHoff, Dullemond, D’Alessio, D’Alessio, D’Alessio, F. C. Pignatale, Fegley, G. Brooks, Gail, Gail, Gail, Geers, Gemmi, Ghiorso, Grevesse, Grossman, Hack, Haisch, Henning, Imae, Jacob, K. Liffman, Kerrick, Kessler-Silacci, Krot, Lewis, Liffman, MacPherson, Marfunin, Meeus, Merlini, Nafziger, Nafziger, Nakamura, Nakamura, Newton, Olofsson, Pasek, Pegourie, Pollack, Porter, Rietmeijer, Roine, S. T. Maddison, Sakao, Sasselov, Saxena, Schegerer, Scott, Scott, Toppani, V. Taquet, Walbaum, White, Yoneda, Zolensky   +76 more
core   +1 more source

Alkali Vapor Corrosion of Spinel (MgAl2O4) and Gahnite (ZnAl2O4) Refractories—A Comparative Study

Journal of the American Ceramic Society, Volume 109, Issue 5, May 2026.
ABSTRACT Alkali vapor corrosion is critical for refractories used in the kilns and furnaces of diverse high‐temperature processing and manufacturing sectors such as gasifiers, cement production, and glass making. Gahnite (ZnAl2O4) is being investigated as a potential chrome‐free refractory because of its similarity with the structure and properties of ...
Rajat Durgesh Ramteke, James G. Hemrick, Manoj K. Mahapatra   +2 more
wiley   +1 more source

Nickel Nanoparticles Prepared via Colloidal Synthesis as CO2 Hydrogenation Catalysts on Various Support Materials

Advanced Synthesis &Catalysis, Volume 368, Issue 8, 15 April 2026.
Small aromatic ligands are used to synthesize Ni particles between 1 and 4.4 nm. After deposition on various supports, an alkylating agent and subsequent reduction procedure are used to remove the ligands. On SiO2, the Ni particles remained small, but on Al2O3 they sintered severely.
Bram T. Kappé, Metin Sen, Esther Groeneveld, Savannah Turner, Ward van der Stam, Matteo Monai, Bert M. Weckhuysen   +6 more
wiley   +1 more source

Spectroscopic analysis of "MgAlON" spinel powders: influence of nitrogen content [PDF]

, 2003
International audienceThe thermoluminescence (TL) and fluorescence spectra of magnesium aluminium oxynitride "MgAlON" and magnesium aluminate MgAl2O4 spinel powders have been analysed.
Benabdesselam, Mourad, Goeuriot, Patrice, Grosseau, Philippe, Guilhot, Bernard, Iacconi, Philibert, Morey, Olivier   +5 more
core   +4 more sources

TỔNG HỢP CHẤT MÀU XANH COBAN CoxMg1–xAl2O4 DÙNG TRONG GỐM SỨ BẰNG PHƯƠNG PHÁP PECHINI

Tạp chí Khoa học Đại học Huế: Khoa học Tự nhiên, 2019
Bài báo trình bày quá trình tổng hợp chất màu xanh coban CoxMg1–xAl2O4 (x = 0,1÷0,9) theo phương pháp Pechini. Các đặc trưng của sản phẩm chất màu được xác định bởi phương pháp nhiễu xạ tia X (XRD), phân tích nhiệt (TG–DSC), hiển vi điện tử quét (SEM ...
Tran Ngoc Tuyen, Ho Van Minh Hai, Nguyen Duc Hoang   +2 more
doaj   +1 more source

Magnetism and Nonlinear Charge Transport in NiFe2O4/γ‐Al2O3/SrTiO3 Heterostructure: Toward Spintronic Applications

Advanced Functional Materials, Volume 36, Issue 33, 23 April 2026.
In this report, we demonstrate that a crystalline phase of 52nm thick NiFe2O4 can be grown by RF sputtering on top of γ‐Al2O3(8nm)/SrTiO3 at a significantly low temperature (150 °C) without compromising the mobility and carrier density of the 2D electron gas at the γ‐Al2O3(8nm)/SrTiO3 interface.
Amit Chanda, Thor Hvid‐Olsen, Christina Hoegfeldt, Anshu Gupta, Alessandro Palliotto, Fardin Ghaffari‐Tabrizi, Maja A. Dunstan, Kasper S. Pedersen, Dae‐Sung Park, Damon J. Carrad, Thomas Sand Jespersen, Felix Trier   +11 more
wiley   +1 more source