Results 21 to 30 of about 10,852 (290)

A Study on Surface Modification Characteristics and Charge–Discharge Mechanism of Natural Serpentinite Ore Secondary Battery

open access: yesInorganics, 2023
This study conducts low-vacuum sulfidation to form a sulfidation layer on the serpentinite-derived magnesium iron silicate, thereby enhancing its electrochemical properties. Results show (Mg,Fe)2SiO4 calcined at 900 °C has the best crystallinity, and the
Jun-Ren Zhao   +4 more
doaj   +1 more source

Enhanced sulfidation xanthate flotation of malachite using ammonium ions as activator

open access: yesScientific Reports, 2017
In this study, ammonium ion was used to enhance the sulfidation flotation of malachite. The effect of ammonium ion on the sulfidation flotation of malachite was investigated using microflotation test, inductively coupled plasma (ICP) analysis, zeta ...
Dandan Wu   +4 more
doaj   +1 more source

Assessing corrosion in oil refining and petrochemical processing

open access: yesMaterials Research, 2004
This paper summarizes the development of an information system used to manage corrosion of metals and alloys by high temperature gases found in many different oil refining, petrochemical, power generation, and chemical processes.
Randy C. John   +5 more
doaj   +1 more source

Performance and mechanisms of active attapulgite-supported sulfidated nanoscale zero-valent iron materials for Pb(II) removal from aqueous solution

open access: yesMaterials Research Express, 2023
To inhibit the oxidation, passivation, and agglomeration of nano-zero-valent iron (nZVI), a liquid phase reduction method was used to load sulfurized nZVI onto acid-modified ATP with attapulgite (ATP) as the carrier (S-nZVI@ATP).
Xiaosan Song, Xichen Song, Liang Dai
doaj   +1 more source

Fate of metallic engineered nanomaterials in constructed wetlands : prospection and future research perspectives [PDF]

open access: yes, 2017
Metallic engineered nanomaterials (ENMs) undergo various transformations in the environment which affect their fate, toxicity and bioavailability.
Auvinen, Hannele   +3 more
core   +1 more source

Corrosion of Fe-(9~37) wt. %Cr Alloys at 700–800 °C in (N2, H2O, H2S)-Mixed Gas

open access: yesMetals, 2016
Fe-(9, 19, 28, 37) wt. %Cr alloys were corroded at 700 and 800 °C for 70 h under 1 atm of N2, 1 atm of N2/3.2%H2O mixed gas, and 1 atm of N2/3.1%H2O/2.42%H2S mixed gas.
Min Jung Kim   +2 more
doaj   +1 more source

Sulfidation of ZIF-Derived Core-Shell NiCo LDH/Ni MOF Heterostructure toward Supercapacitor Electrodes with Enhanced Performance

open access: yesBatteries, 2022
Developing electrodes in a reasonable structure is essential to boost the performance of supercapacitors. Self-supporting heterostructures enriched active sites are promising as binder-free electrodes for supercapacitors.
Xin Zheng   +9 more
doaj   +1 more source

Enrichment in critical metals (In-Ge) and Te-Se in epithermal deposits of the 'La Carolina' district, San Luis, Argentina [PDF]

open access: yes, 2018
This study was supported by the ‘Proyecto de Ciencia y Técnica P-3-2-0414, of the National University of San Luis’ and by the Project CGL2016-76532-R from the MINECO of ...
Cepedal Hernández, María Antonia   +3 more
core   +2 more sources

Low sulfidation epithermal gold mineralization at Tambang Sawah, Lebong, Bengkulu Province, Indonesia [PDF]

open access: yesE3S Web of Conferences, 2023
The Tambang Sawah area, Lebong, Bengkulu Province, is geologically located in the Barisan mountain range and the Sumatran fault zone and is composed of igneous rocks of the Sunda – Banda magmatic arc. This study is aimed to elucidate geological framework
Al Hakim Muhammad Muhsin   +2 more
doaj   +1 more source

Sulfidation Impacts on the Hydrophobicity of Stepped Iron Surfaces

open access: yesAdvanced Energy & Sustainability Research, 2023
Nanoscale zero‐valent iron (nZVI) has demonstrated high potential for the remediation of contaminated groundwater. Its lifetime is directly related to the hydrophobicity of nZVI. A promising approach to enhance the lifetime of nZVI is through sulfidation.
Jessica Jein White   +5 more
doaj   +1 more source

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