Results 91 to 100 of about 131,050 (349)

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

Determination of Major Elements in Perlite by X-ray Fluorescence Spectrometry with Fusion Sampling Preparation

Yankuang ceshi, 2015
Chemical composition, an important quality index for perlite, has great influence on the expansion characteristics of perlite. At present, the component analysis of perlite is mainly traditional chemical methods such as capacity, weight ...
LI Peng-cheng, WANG Mei-ying, LI Yan-hua, ZHANG Ming-wei, LIU Chun-xia, WANG Ji-yan, LIU Mian, CHEN Chong-ke, LU Kun, LI Zhen   +9 more
doaj   +1 more source

Precious Metals and Oil Price Dynamics

, 2023
Abdulrazak Nur Mohamed, Idiris Sid Ali Mohamed   +1 more
openalex   +2 more sources

Will precious metals shine ? A market efficiency perspective [PDF]

, 2014
International audiencePrecious metals (gold, silver, and platinum) have become an important part of investment portfolios forindividuals as well as for institutions.
Charles, Amélie, Darné, Olivier, Kim, Jae H.   +2 more
core   +6 more sources

Water Permeates and Plasticizes Amorphous Carbon Dots: Unraveling the Inner Accessibility of the Nanoparticles by Glass Transition Studies

Advanced Materials, EarlyView.
The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti, Valerio Di Lisio, Lucia Cardo, Alessandro Camilli, Estela Moretón Alfonsín, Daniele Cangialosi, Amaia Iturrospe Ibarra, Arantxa Arbe, Maurizio Prato   +8 more
wiley   +1 more source

Recycling of Precious Metals and Rare Metals in JX Nippon Mining & Metals Corporation

, 2021
Yasukatsu Sasaki, N. Ohtsuka
openalex   +1 more source

China and the Spanish Empire [PDF]

, 1996
Editada en la Fundación Empresa PúblicaEn este artículo argumentamos que Ming China desempeñó un papel fundamental en el auge y decadencia del Imperio español. La demanda china de plata permitió elevados beneficios hasta 1640.
Atwell, Beller, Borah, Boxer, Braudel, Cartier, Castillo, Chaudhuri, Chaunu, Chuan, Cross, Doherty, Domínguez Ortiz, Domínguez Ortiz, Elliott, Elliott, Fairbank, Flynn, Flynn, Flynn, Flynn, Flynn, Flynn, Garcia-Baquero González, Gernet, Goldstone, Huang, Israel, Kamen, Kamen, Kobata, Koenigsberger, Liang, Lynch, Magalhaes Godinho, Moloughney, Morineau, Parker, Parker, Perlin, Szaszdi, Tashiro, TePaske, Thompson, Vilar, Vilar, Von Glahn, Vries, Yamamura, Yun Casalilla, Yun Casalilla   +50 more
core   +2 more sources

Tuning Amorphous‐Crystalline Catalytic Interfaces by Mechanochemistry: Cu‐Based Metallic Glasses Coupled with Ceria for CO Oxidation

Advanced Materials, EarlyView.
Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim, Mehran Nabahat, Laia Pascua‐Solé, Isabel Serrano, Ilaria Lucentini, Xènia Garcia, Marina Armengol‐Profitós, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Núria J. Divins, Ignacio J. Villar‐Garcia, Virginia Pérez‐Dieste, Carlos Escudero, Carlo Marini, Jordi Llorca, Eloi Pineda, Pere Bruna, Lluís Soler   +17 more
wiley   +1 more source

Asymmetric effects of crude oil prices and USD exchange rate on precious metals returns：Evidence from pre and during COVID-19 outbreak. [PDF]

Heliyon, 2023
Wang Y, Chen J, Ren X.
europepmc   +1 more source

Editorial: Special Issue Catalysis by Precious Metals, Past and Future [PDF]

, 2020
Svetlana Ivanova, L.M. Martínez T
openalex   +1 more source