Results 91 to 100 of about 31,060 (253)

Time-resolved detection of surface oxide formation at individual gold nanoparticles : role in electrocatalysis and new approach for sizing by electrochemical impacts [PDF]

, 2016
Nanoparticle (NP) impacts on electrode surfaces has become an important method for analyzing the properties and activity of individual NPs, by either: (i) electrocatalytic reactions; or (ii) volumetric (dissolution) analyses.
Bentley, Cameron Luke, Kang, Minkyung, Unwin, Patrick R.   +2 more
core   +2 more sources

Methyl on the Bridge: 2‐Methyl Propellane as Precursor for 1,3‐Substituted 2‐Methylated Bicyclo[1.1.1]Pentanes

Chemistry – A European Journal, EarlyView.
The synthesis of 2‐methyl propellane and its conversion to various 1,2‐ and 1,2,3‐di‐ and trisubstituted bicyclopentanes is reported. Abstract Bicyclo[1.1.1]pentanes (BCPs) have emerged as isosteric replacements for mono‐ and para‐substituted benzene rings in medicinal and materials applications, involving substitution at the BCP bridgehead (1,3 ...
Sean R. Verschaeve, Mariana Gomes Manso, Tibo Van Eeckhoorn, Mark E. Light, Bruno Linclau   +4 more
wiley   +1 more source

A Mechanistic Analysis of Phase Evolution and Hydrogen Storage Behavior in Nanocrystalline Mg(BH4)2 within Reduced Graphene Oxide. [PDF]

, 2020
Magnesium borohydride (Mg(BH4)2, abbreviated here MBH) has received tremendous attention as a promising onboard hydrogen storage medium due to its excellent gravimetric and volumetric hydrogen storage capacities.
Guo, Jinghua, Heo, Tae Wook, Jeong, Sohee, Kang, ShinYoung, Liu, Yi-Sheng, Long, Jeffrey R, Oktawiec, Julia, Ray, Keith G, Schneemann, Andreas, Shi, Rongpei, Stavila, Vitalie, Urban, Jeffrey J, Wan, Liwen F, White, James L, Wood, Brandon C, Zaia, Edmond W   +15 more
core   +1 more source

Stereoselective synthesis of hydroxylated 3-aminoazepanes using a multi-bond forming, three-step tandem process [PDF]

, 2012
A multi-bond forming, three-step tandem process involving a palladium(II)-catalysed Overman rearrangement and a ring closing metathesis reaction has been utilised for the efficient synthesis of a 2,3,6,7-tetrahydro-3-amidoazepine.
Ahmad, Ahmad, Anderson, Anderson, Anderson, Andrew Sutherland, Bernstein, Blades, Blanchette, Cant, Cardillo, Chapman, Cini, Cook, Cutri, Cutri, Delmore, Donohoe, Donohoe, Donohoe, Elhalem, Fürstner, Gilmet, Henbest, Horbal, Ireland, Jobson, Jobson, Kantorowski, Kazi, Kulanthaivel, Kurihara, Lampe, Louvel, Maier, Masse, McGonagle, Miyabe, Miyabe, Moriwake, Nicolaou, Nomura, O'Brien, Overman, Pimlott, Riber, Sajjad Ahmad, Sanford, Scholl, Schwab, Schwab, Srivastava, Stevens, Swift, Swift, Tietze, Trost, Valle, Watson, Würdemann, Yar, Yaragorla, Yet, Zaed   +63 more
core   +1 more source

Synthesis of a π‐Extended Phenazine Diimide Derivative and Characterization of Its Closed‐Shell Reduced States

Chemistry – A European Journal, EarlyView.
In this work, the synthesis and characterization of novel π‐extended phenazine diimides is reported. The derivatives undergo differential reduction to a dihydrophenazine or Meisenheimer form depending on the reaction conditions employed. The outcome of this work highlights the paramount importance of structural design in determining the nature of the ...
Francesco Rigodanza, Beatrice Bartolomei, Ilaria Crea, Paolo Costa, Nicola Demitri, Marcella Bonchio, Maurizio Prato, Jacopo Dosso   +7 more
wiley   +1 more source

CO2 reduction with protons and electrons at a boron-based reaction center. [PDF]

, 2019
Borohydrides are widely used reducing agents in chemical synthesis and have emerging energy applications as hydrogen storage materials and reagents for the reduction of CO2. Unfortunately, the high energy cost associated with the multistep preparation of
Essex, Laura A, Harman, W Hill, McSkimming, Alex, Taylor, Jordan W   +3 more
core  

A field deployable method for a rapid screening analysis of inorganic arsenic in seaweed [PDF]

, 2017
The authors thank the support for getting the seaweed samples from the projects funded under the Department of Agriculture, Food and the Marine’s Competitive research programmes in Ireland. Reference number 14 SF 860. The authors thank Corny Brombach for
Bralatei, Edi, Feldmann, Joerg, Krupp, Eva M., McGovern, Evin, Nekrosiute, Karolina, Raab, Andrea, Ronan, Jenny, Stengel, Dagmar B.   +7 more
core   +2 more sources

Experimental methods in chemical engineering: Atomic absorption spectrometry—AAS

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Elements absorb electromagnetic radiation (light) of a specific wavelength in proportion to the number of atoms in its path. As the atoms absorb this light energy, electrons rise from the ground state to an excited state. In atomic absorption spectrometry (AAS), high temperatures produce clouds of atoms from the sample (atomization) and ...
Emily Cintia Tossi de A. Costa, Jildimara de Jesus Santana, Viviane de Oliveira Campos, Felipe Fernandes Barbosa, Gregory S. Patience   +4 more
wiley   +1 more source

Investigation of the Performance of Aucore-Pdshell/C as the Anode Catalyst of Direct Borohydride-Hydrogen Peroxide Fuel Cell

International Journal of Electrochemistry, 2011
The carbon-supported bimetallic Au-Pd catalyst with core-shell structure is prepared by successive reduction method. The core-shell structure, surface morphology, and electrochemical performances of the catalysts are characterized by X-ray diffraction ...
Hong Wang, Ying Wang, Xianyou Wang, Peiying He, Lanhua Yi, Wei Yi, Xue Liu   +6 more
doaj   +1 more source

The derivation of the formyl-group oxygen of chlorophyll b in higher plants from molecular oxygen. [PDF]

, 1994
The mechanism of formation of the formyl group of chlorophyll b has long been obscure but, in this paper, the origin of the 7-formyl-group oxygen of chlorophyll b in higher plants was determined by greening etiolated maize leaves, excised from dark-grown
Abraham R. J., Beale S. I., Bjorkman O., Brown S. B., Chunaev A. S., Ghosh R., Hayaishi O., Henningsen K. W., IUPAC-IUB Joint Commission on Biochemical Nomenclature (JCBN), Klein O., Lane C. F., Leeper F. J., Michalski T. J., Nashrulhaq-Boyce A., Naylor S., Parkes-Loach P. S., Parkes-Loach P. S., Paulsen H., Plumley F. G., Porra R. J., Porra R. J., Porra R. J., Rudiger W., Scheer H., Scheer H., Schneegurt M. A., Walker C. J., Wong Y. S.   +27 more
core   +1 more source