Results 111 to 120 of about 15,391 (234)

Estudo cinético da redução da massa molar do poli(3-hidroxibutirato-co-3-hidroxivalerato) (PHBHV) Kinetic study of the molecular weight reduction of poly (3-hydroxybutirate-co-3-hydroxyvalerate) (PHBHV)

Polímeros, 2010
Neste trabalho foi realizado um estudo cinético da redução da massa molar do poli(3-hidroxibutirato-co-3-hidroxivalerato) (PHBHV) em três diferentes metodologias: hidrólise ácida com ácido clorídrico, transesterificação com hexilenoglicol ou ...
Sérgio R. Montoro, Carlos Y. Shigue, Marli L. T. de Sordi, Amilton M. dos Santos, Maria I. Ré   +4 more
doaj  

State‐of‐the‐Art and Synthetic Challenges for Hydrosilane Production

Chemistry – A European Journal, EarlyView.
The synthesis of hydrosilanes is currently energy intensive and their recycling is not considered. However, these compounds are important in many industrial fields but also for the valorization of oxygenated waste, towards a circular economy. This review compares the available synthetic routes and highlights the remaining challenges for the production ...
Gabriel Durin, Albane Fontaine, Jean‐Claude Berthet, Thibault Cantat   +3 more
wiley   +1 more source

Nitrogen-doped carbon xerogels as novel cathode electrocatalysts for oxygen reduction reaction in direct borohydride fuel cells

, 2016
As a novel catalyst for oxygen reduction reaction (ORR), nitrogen-doped carbon xerogel was prepared via a sol-gel followed by the subsequent pyrolysis in ammonia atmosphere and post-treatment process.
Li, Jinyang, Liu, Qingyu, Liu, Dejun, Jin, Hong, Gao, Lianxing, Chen, Fuyu, Zhang, Huamin   +6 more
core   +1 more source

FLP Mediated Conversion of Difluorobenzylalkynes to Fluoroallenyl Oniums via an SN1’ Pathway

Chemistry – A European Journal, EarlyView.
Frustrated Lewis pair (FLP) selective C‒F activation of difluorobenzylalkynes allows the formation of fluoroallenic oniums via an SN1’ substitution pathway. The fluoroallenic onium salts are synthetic precursors that allow subsequent functionalization at allenic and onium positions.
Max Coles, Tianhong Wang, Rubi McLennan, Long Kit Kwan, Bivas Mondal, Chakyu Richard Chan, Rowan D. Young   +6 more
wiley   +1 more source

Hybrid nanocarriers with different densities of silver nanoparticles formation features and antimicrobial properties

Scientific Reports
This work presents the synthesis and characterization of silica/polyacrylamide hybrid carriers Hyb1 and Hyb2 containing different amounts and lengths of grafted PAAm chains, as well as the formation mechanism, structure, and antibacterial efficacy of ...
Tatyana Zheltonozhskaya, Olga Akopova, Irena Dąbrowska, Nataliya Permyakova, Valeriy Klepko, Dmitro Klymchuk   +5 more
doaj   +1 more source

Photocatalytic reduction of CO2 over Ti3+ self-doped TiO2-based nanomaterials

Journal of CO2 Utilization
In this study, we explored the photocatalytic efficacy of Ti3+-doped TiO2-based photocatalysts for CO2 reduction. The Ti3+ self-doped photocatalysts were synthesized using a straightforward chemical reduction with sodium borohydride (NaBH4).
Rudolf Ricka, Agnieszka Wanag, Ewelina Kusiak-Nejman, Dariusz Moszyński, Miroslava Filip Edelmannová, Martin Reli, Zdeněk Baďura, Giorgio Zoppellaro, Radek Zbořil, Antoni W. Morawski, Kamila Kočí   +10 more
doaj   +1 more source

Reaction of N,N’-dimethylformamide and divalent viologen molecule to generate an organic dopant for molybdenum disulfide

AIP Advances, 2018
Tuning the carrier concentration is essential for semiconducting materials to apply optoelectronic devices. Molybdenum disulfide (MoS2) is a semiconducting material composed of atomically thin (∼0.7 nm thickness) layers.
A. Fukui, K. Miura, H. Ichimiya, A. Tsurusaki, K. Kariya, T. Yoshimura, A. Ashida, N. Fujimura, D. Kiriya   +8 more
doaj   +1 more source

Synthesis of Oligonucleotide Conjugates Employing a Diselenide Linker

Chemistry – A European Journal, EarlyView.
ABSTRACT In this study, we report the synthesis of an alkylene linker containing a terminal 2‐cyanoethyl protected selenium functionality for coupling at the 5'‐end of an oligonucleotide by solid phase synthesis for the preparation of oligonucleotide conjugates.
Shivam Tikoo, Anne M. Noronha, Christopher J. Wilds   +2 more
wiley   +1 more source

Template-Assisted Synthesis and Characterization of Passivated Nickel Nanoparticles

Nanoscale Research Letters, 2010
Potential applications of nickel nanoparticles demand the synthesis of self-protected nickel nanoparticles by different synthesis techniques. A novel and simple technique for the synthesis of self-protected nickel nanoparticles is realized by the inter ...
Al-Omari IA, Malini KA, Joy PA, Santhoshkumar G, Sakthi Kumar D, Yoshida Yasuhiko, Veena Gopalan E, Narayanan TN, Anantharaman MR   +8 more
doaj   +1 more source

Experimental investigation on electrochemical properties of oxygen vacancies-doped metal oxides anodes for supercapacitors through chemical reduction with sodium borohydride

, 2017
LAUREA MAGISTRALEIn questa tesi è stato studiato l’effetto della riduzione chimica tramite l’utilizzo del sodio boro idruro (NaBH4) su ossidi di materiali, quali CoFe2O4 e α-MoO3, che possono essere utilizzati come anodi per supercondensatori.
GAMBARDELLA, FRANCESCO MARIA
core