Results 21 to 30 of about 645,180 (138)

Degradação de espécies nitroaromáticas e remediação de efluentes da indústria de explosivos, utilizando-se processos redutivos-oxidativos fundamentados no uso de ferro metálico Degradation of nitroaromatic compounds and remediation of residues from the explosive production by reductive-oxidative processes based on zero-valent iron

open access: yesQuímica Nova, 2009
In this work the potentiality of reductive-oxidative processes based on zero-valent iron was studied aiming the degradation of nitroaromatic compounds and the remediation of residues from the explosive industry.
Luiz Fernando Rocha Cavalotti   +3 more
doaj   +1 more source

Sustainable Pd‐Catalyzed Aminations “on Dirty Water”

open access: yesAngewandte Chemie, EarlyView.
Aminations, done safely yet neat, and therefore, quickly, using low levels of Pd, in “dirty water” that must contain 30% KOH; not NaOH, and not at 5%,10%, 20%, 40%, or 50% KOH. Moreover, no base sensitivity of functional groups! Very cool. Thank you, Nature.
Erfan Oftadeh   +4 more
wiley   +2 more sources

Rapidly Diversifying Hydrogen‐Bonded Organic Frameworks With Permanent Porosity

open access: yesAngewandte Chemie, EarlyView.
This article reviews diversifying hydrogen‐bonded organic frameworks (HOFs) with permanent porosity reported over the past 15 years, based on the molecular structures of their constituent tectons. Furthermore, several distinctive aspects and concepts are described, such as permanent porosity, isostructural (isoreticular) HOFs, and multicomponent mixed ...
Taito Hashimoto, Ichiro Hisaki
wiley   +2 more sources

Cobalt Single‐Atom Catalysts for Ultrafast Sulfamethoxazole Degradation: Unveiling the Chloride‐Ion‐Enhanced Formation of Co(IV)=O

open access: yesAdvanced Science, EarlyView.
An atomically dispersed Co–N4 single‐atom catalyst rapidly activates peroxymonosulfate to remove the antibiotic sulfamethoxazole from water. Common ions have little impact, but chloride dramatically speeds degradation by promoting a high‐valent Co(IV) = O oxidant via in situ HOCl–catalyst electron transfer.
Anting Ding   +6 more
wiley   +1 more source

Water in the 2010 Virginia General Assembly [PDF]

open access: yes, 2010
The 2010 Virginia General Assembly convened January 13 and adjourned March 13. The reconvened (“veto”) session was held April 21. During the session, the Assembly considered 2964 measures, passing 1598 of them, defeating 1093, and continuing 273 until ...
Virginia Water Resources Research Center
core  

Spike‐Embedded Nanocatalysts via Metal‐Directed Carbonization for Highly Efficient and Robust Semi‐Hydrogenation

open access: yesAdvanced Science, EarlyView.
A metal‐directed carbonization strategy transforms hierarchical organic microspheres into spiky carbon catalysts with Pd nanoparticles embedded at the tips. This approach resolves the activity‐stability trade‐off, achieving exceptional poison resistance in semi‐hydrogenations, offering a versatile, scalable platform for designing high‐performance ...
Yintao Li   +9 more
wiley   +1 more source

1998 General Assembly Legislation Related to Water [PDF]

open access: yes, 1998
The Virginia General Assembly held its regular session from January 14 to March 17, then reconvened April 22-23 to respond to the governor’s vetoes.
Manfre, Joseph   +1 more
core  

Recent Advances in Carbon Cathode Materials toward High‐Performing Zinc‐Ion Hybrid Supercapacitors

open access: yesAdvanced Science, EarlyView.
Aqueous zinc‐ion hybrid supercapacitors (ZHSCs) have emerged as promising next‐generation electrochemical energy‐storage devices. Porous carbon materials have been extensively studied as cathodes, with advances in tailoring pore structures and material properties to enhance performance.
Take Hirooka   +3 more
wiley   +1 more source

Water-Related Bills in the 2008 Virginia General Assembly [PDF]

open access: yes, 2008
The 2008 Virginia General Assembly session opened January 9 and adjourned March 13. Work on the biennial state budget required a few additional days beyond the scheduled adjournment date of March 8.
Virginia Water Resources Research Center
core  

Molecular Design Strategies for High‐Voltage Organic Cathodes

open access: yesAdvanced Energy Materials, EarlyView.
This work proposes molecular engineering strategies for high‐voltage organic cathode materials for Li‐ion batteries: (1) increase Li‐O coordination number (CN), (2) achieve a greater increase in aromaticity upon reduction (∆Aromaticity), and (3) add an electron‐withdrawing group (EWG), through a combined experimental and computational study on reported
Sungil Hong   +8 more
wiley   +1 more source

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