Results 61 to 70 of about 125,253 (313)

Self-consistent kinetic modeling of electron distribution function in a low-pressure inductively coupled plasma

, 1996
Based upon the spatially inhomogeneous Boltzmann equation in two-term approximation coupled with electromagnetic and fluid model analysis for the recently developed inductively coupled plasma sources, a self-consistent electron kinetic model is developed.
吴汉明, Yang Y, Yang, Y (reprint author), CHINESE ACAD SCI,INST MECH,BEIJING 100080,PEOPLES R CHINA.   +2 more
core   +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

Determination of 34 Elements in Ground Substrate of Black Soil by ICP-MS/OES with Alkali Melting Digestion

Yankuang ceshi
The organic matter content in black soil samples is high, typically ranging from 3% to 10%. Traditional pretreatment methods such as open acid dissolution digestion, microwave acid dissolution and digestion, high-pressure closed acid dissolution and ...
Haiyue YU, Qi ZHANG, Bing LU, Chenhao HAN, Taoyuan WANG, Mingliang LI   +5 more
doaj   +1 more source

Creating procedures for determining the content of main components in reagents used for synthesizing certified reference materials for composition

Стандартные образцы, 2017
Actuality of the research. The need for the development and validation of analysis methods of reagents used for the introduction of elements into reference materials, certified according to the procedure of preparation. The purpose.
Margarita A. Dombrovskaya, Dmitriy G. Lisienko, Evgeniya D. Kubrina   +2 more
doaj   +1 more source

A Study on the Characteristics of Inductively Coupled Plasma Nitridation Process

, 2022
In this study, we investigated the nitridation of silicon oxide film surfaces using an inductively coupled plasma source. The plasma parameters and nitride film characteristics were measured under various nitrogen gas pressures and radio frequency power ...
Jong-Sik Kim, Jung-Sik Yoon, Jong-Bae Park, Dae-Chul Kim, Young-Woo Kim, Jong-Hyeon Shin, Yong-Hyun Kim   +6 more
core   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

Plasma-Assisted Nitriding in Low-Frequency Inductively Coupled Plasma Enhanced with Ferromagnetic Cores

High Temperature Materials and Processes, 2018
An experimental investigation of plasma-assisted nitriding of austenitic stainless steel AISI 321 in a low-pressure (7 Pa), low-frequency (50–100 kHz) nitrogen inductively coupled plasma enhanced with ferromagnetic cores has been performed at the ...
Isupov Mikhail, Pinaev Vadim, Mul Daria, Belousova Natalia   +3 more
doaj   +1 more source

Bioorthogonal Photoactivation of 2‐Nitrobenzyl Caged Doxorubicin Anticancer Prodrugs on Gold Nanostars

Advanced Materials, EarlyView.
Bioorthogonal chemistry was applied to intracellularly photoactivate Doxorubicin (Dox) using gold nanostars (AuNSt) and near‐infrared (NIR) light. Two prodrugs were used: one photoactivatable, masked with 2‐nitrobenzyl carbamate (proDox1) and another photolabile, masked with 2‐nitrobenzyl diol (proDox2), which was attached to the AuNSt surface.
Juan José Esteve‐Moreno, Andrea Escudero, Oscar Ferreira Silvestre, José Manuel Terrés, Mónica Gorbe, Eva Garrido, Carlos Renero‐Lecuna, Judith Langer, María Alfonso, Javier Ibañez, Félix Sancenón, Roberto Cao‐Milán, Luis M. Liz‐Marzán, Alba García‐Fernández, Andy Hernández‐Montoto, Ramón Martínez‐Máñez   +15 more
wiley   +1 more source

Innovations in inductively coupled plasma-mass spectrometry: bridging scientific fields

Journal of Medical Science
Inductively coupled plasma mass spectrometry ICP-MS is a versatile analytical tool with several research uses and regular applications in many domains, including biological materials, environmental analysis, and geochemistry.
Jasim Hassen, Jack Silver
doaj   +1 more source

Estudo comparativo de métodos de preparo de amostras de tinta para a determinação de metais e metalóides por técnicas de espectrometria atômica Paint samples preparation methods for metals and methaloids determination by atomic spectrometry techniques

Química Nova, 2009
This work deals with paint decomposition methods for major, minor and trace elements determination. Three methods were investigated: (1) decomposition in closed quartz vessel and heating in microwave oven; (2) decomposition in open vessel using HNO3 and ...
Fabrina R. S. Bentlin, Dirce Pozebon, Fernanda dos Santos Depoi   +2 more
doaj   +1 more source