Results 81 to 90 of about 9,030 (251)

Recent Advances in Molybdenum Disulfide (MoS2) and MXene‐based Heterostructures for Photovoltaic and Water Splitting Applications: A Review

open access: yesChemistrySelect, Volume 10, Issue 15, April 17, 2025.
This review explores the potential of molybdenum disulfide (MoS₂); MXenes; and their heterostructures for photovoltaic and water splitting applications. It discusses advancements in hydrogen evolution reactions, electrolysis, and photocatalysis; highlighting key challenges and future directions.
Peter Chidiebere Obodo   +3 more
wiley   +1 more source

GGR Handbook of Rock and Mineral Analysis Chapter 2 (Part 1) Analysis of Geological Materials – 1: Sample Preparation Methods

open access: yesGeostandards and Geoanalytical Research, Volume 49, Issue 1, Page 9-50, March 2025.
Key Points Comprehensive review of dissolution‐decomposition methods based on acid attack and molten salt fusion. Dissolution remains the preferred method for many modern instrumental measurement principles e.g., ICP‐MS, ICP‐AES and TIMS. Comprehensive reviews of flux-free fusion for glasses and production of pressed powder pellets for analysis by EPMA,
Philip Robinson
wiley   +1 more source

Minerals in Afghanistan : the potential for copper [PDF]

open access: yes, 2006
There are around 300 documented copper deposits, occurrences and showings in Afghanistan as shown in Figure 1. A variety of styles of copper mineralisation occur in rocks ranging in age from Proterozoic to Neogene.
Benham, Antony John, Coats, Stan
core  

Water as Solvent for the Dispersion of 2D Nanostructured Materials

open access: yesChemPhysChem, Volume 26, Issue 3, February 1, 2025.
Water has already proven to be a very effective dispersion medium for two‐dimensional materials. Εither by direct liquid phase exfoliation using ultrasound, or with the aid of surfactants, by modifying the materials with hydrophilic groups or using a solvent exchange technique, aqueous dispersions of van der Waals and non van der Waals solids have ...
Vasilios I. Georgakilas
wiley   +1 more source

A Rapid Method to Determine the Re-Os Age and Re Content of Molybdenite by Inductively Coupled Plasma-Mass Spectrometry

open access: yesYankuang ceshi, 2016
Re-Os isotope method is a powerful tool for dating ore deposits, but digesting samples with the Carius tube is complicated and dangerous.A simple and quick method to determine the age of molybdenite Re-Os and Re content has been established.5-15 mg of ...
YANG Xue   +5 more
doaj   +1 more source

Quantifying gas emissions from the "Millennium Eruption" of Paektu volcano, Democratic Peoples Republic of Korea/China [PDF]

open access: yes, 2016
Paektu volcano (Changbaishan) is a rhyolitic caldera that straddles the border between the Democratic People’s Republic of Korea and China. Its most recent large eruption was the Millennium Eruption (ME; 23 km3 dense rock equivalent) circa 946 CE, which ...
Donovan, A.   +12 more
core   +3 more sources

Development of a potentiometric EDTA method for determination of molybdenum. Use of the analysis for molybdenite concentrates [PDF]

open access: yes
Based on considerations of principles and experimental data, the interference of sulfate ions in poteniometric titration of EDTA with FeCl3 was confirmed.
Khristova, R., Vanmen, M.
core   +1 more source

Molybdenite as a rhenium carrier : first results of a spectroscopic approach using synchrotron radiation [PDF]

open access: yes, 2013
The chemical and physical properties of rhenium render it a highly demanded metal for advanced applications in important industrial fields. This very scarce element occurs mainly in ores of porphyry copper-molybdenum deposits associated with the ...
Batista, Maria Joao   +4 more
core   +1 more source

Study on the Occurrence State of Rhenium in Copper-Molybdenum Ore from the Fujiawu Deposit, Jiangxi Province and Factors Affecting Re Recovery

open access: yesYankuang ceshi, 2017
Understanding the occurrence of Re in ore minerals is the prerequisite for comprehensive recovery of rhenium. The study on the occurrence of Re in copper-molybdenum ores of Fujiawu deposit is lacking. Chemical analysis, optical microscopic identification,
XIA Yu   +4 more
doaj   +1 more source

Novel Molybdenite-Based Nanopowder Catalysts for Hydrodesulfurization [PDF]

open access: hybrid, 2021
Т. А. Федущак   +9 more
openalex   +1 more source

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