Results 51 to 60 of about 5,487,526 (354)

Effect of sulfuric acid concentration on the quality of copper microcolumns in localized electrochemical deposition

open access: yesMaterials Research Express, 2020
Localized electrochemical deposition (LECD) is a promising method for three-dimensional micro-/nanofabrication and, thus, the factors influencing LECD have been intensively investigated.
Qixin Qing, Fuliang Wang
doaj   +1 more source

RECYCLING OF PRINTED CIRCUIT BOARDS AIMING SILVER RECOVERY: A HYDROMETALLURGICAL ROUTE STUDY [PDF]

open access: yesTecnologia em Metalurgia, Materiais e Mineração, 2015
The aim of this paper is characterize printed circuit board of computers and propose a hydrometallurgical route for silver recovery present in its composition. Initially, the printed circuit board was comminuted in both knife and hammer mills.
Marcos Paulo Kohler Caldas   +4 more
doaj   +1 more source

Neutral molecular cluster formation of sulfuric acid–dimethylamine observed in real time under atmospheric conditions [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2014
Significance A significant fraction of atmospheric aerosols is formed from the condensation of low-volatility vapors. These newly formed particles can grow, become seeds for cloud particles, and influence climate.
A. Kürten   +47 more
semanticscholar   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

Application and Properties of Low Alloying Sulfuric Acid Dew Point Corrosion-Resistant Steels

open access: yesTeshugang, 2005
The sulfuric acid dew corrosion- resistant steels are low alloying steels for heat exchanging component. There are two kinds of sulfuric acid dew corrosion- resistant steel:(1)base alloy elements-0.2%~0.5%Cu->0.010S adding a small quantity P,Sn,As, Sb,Se,
钱余海, 李自刚, 杨阿娜
doaj  

Comparison of two differentiation reagents for the staining of leprosy bacilli

open access: yesPifu-xingbing zhenliaoxue zazhi
Objective To compare the effects of 20% sulfuric acid and acidic alcohol for the staining of leprosy bacilli in order to choose a better acid fast staining reagent for leprosy patients.
WEN Xiao   +4 more
doaj   +1 more source

Preparation of 5-Bromo-2-naphthol: The Use of a Sulfonic Acid as a Protecting and Activating Group

open access: yesMolbank, 2009
The preparation of 5-bromo-2-naphthol (4) in three steps from 5-amino-2-naphthol (1) is described. A sulfonic acid group is introduced at the 1-position as an activating and protecting group for the Sandmeyer reaction.
Christopher Abelt   +2 more
doaj   +1 more source

Cryo‐EM of Rationally Designed Photosystem I Nanoassembly on Graphene Validates Orientation‐Driven Enhancement of Photocatalytic Performance

open access: yesAdvanced Functional Materials, EarlyView.
The first cryo‐EM visualization and quantification of oriented Photosystem I (PSI) on single‐layer graphene is reported. Domain‐specific covalent anchoring of PSI, with the reducing side of the biophotocatalyst toward graphene, promotes three‐fold higher anodic photocurrent generation compared to a randomly physisorbed counterpart. This approach allows
Miriam Izzo   +6 more
wiley   +1 more source

Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching

open access: yesAdvanced Functional Materials, EarlyView.
A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey   +12 more
wiley   +1 more source

PUMP DESIGN AND COMPUTATIONAL FLUID DYNAMIC ANALYSIS FOR HIGH TEMPERATURE SULFURIC ACID TRANSFER SYSTEM

open access: yesNuclear Engineering and Technology, 2014
In this study, we proposed a newly designed sulfuric acid transfer system for the sulfur-iodine (SI) thermochemical cycle. The proposed sulfuric acid transfer system was evaluated using a computational fluid dynamics (CFD) analysis for investigating ...
JUNG-SIK CHOI   +4 more
doaj   +1 more source

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