Results 71 to 80 of about 11,878 (246)

Nanoporous gold catalyst for direct ammonia borane fuel cells [PDF]

, 2013
Nanoporous gold (NPG) electrodes were fabricated in film and wire array formats by selectively dealloying Ag from Au0.18Ag0.82. The ammonia borane (AB) oxidation reaction was studied by cyclic voltammetry at the NPG electrodes.
Nagle, Lorraine C., Rohan, James F.
core   +1 more source

Cationic Sulfonium‐Based Tripodal Ligand and Its Rh(I) Complexes

Chemistry – A European Journal, EarlyView.
We report a cationic EP3‐type tripodal ligand based on an aromatic sulfonium cation (E = S+) along with a series of its Rh(I) complexes. Structural, spectroscopic, electrochemical, and computational analyses of these complexes compared to isostructural analogs (E = Si− or P) reveal pronounced electron density depletion at Rh in the sulfonium congener ...
Nitsan Barel, Shrouq Mujahed, Kamal Uddin Ansari, Katarzyna Młodzikowska‐Pieńko, Renana Gershoni‐Poranne, Yuri Tulchinsky   +5 more
wiley   +1 more source

Ammonia borane-enabled hydrogen transfer processes: Insights into catalytic strategies and mechanisms

Green Energy & Environment, 2023
Transfer hydrogenation (TH) with in situ generated hydrogen donor is of great importance in reduction reactions, and an alternative strategy to traditional hydrogenation processes involving pressurized molecular hydrogen. Ammonia borane (NH3BH3, AB) is a
Wenfeng Zhao, Hu Li, Heng Zhang, Song Yang, Anders Riisager   +4 more
doaj   +1 more source

Catalytic conversion of nitrogen to ammonia by an iron model complex [PDF]

, 2013
The reduction of nitrogen (N_2) to ammonia (NH_3) is a requisite transformation for life. Although it is widely appreciated that the iron-rich cofactors of nitrogenase enzymes facilitate this transformation, how they do so remains poorly understood.
Anderson, John S., Peters, Jonas C., Rittle, Jonathan   +2 more
core   +2 more sources

Heteroatom‐Doped Graphdiynes and Their Applications in Photo‐/Electro‐Catalytic CO2 Conversion

Carbon Innovation, EarlyView.
This review highlights the versatile role of doped graphdiyne (GDY) in boosting CO2 conversion, where metal and non‐metal doping simultaneously tune the electronic structure, create abundant active sites, and improve charge separation, light harvesting, and CO2 adsorption.
Fangzhou Yang, Yuwei Zhang, Wai‐Yeung Wong, Linli Xu   +3 more
wiley   +1 more source

Synthesis of Ternary Borocarbonitrides by High Temperature Pyrolysis of Ethane 1,2-Diamineborane [PDF]

, 2015
Ethane 1,2-diamineborane (EDAB) is an alkyl-containing amine-borane adduct with improved hydrogen desorption properties as compared to ammonia borane. In this work, it is reported the high temperature thermolytic decomposition of EDAB.
Ares, J.R., Betti, M.G., Fernández, J.F., Flores-Cuevas, E., Leardini, Fabrice, Mariani, C., Massimi, L.   +6 more
core   +3 more sources

Expanded Scorpionate and Siderophore‐Inspired Ligands: From Foundational Designs to Modern Applications

European Journal of Inorganic Chemistry, EarlyView.
The concept of scorpionate ligands has evolved significantly since the introduction of tris(pyrazolyl)borate. By integrating a biological supramolecular ligand scaffold with the classic scorpionate architecture, researchers have made notable strides in mimicking the active sites of nitrogenase and advancing homogeneous catalysis.
Austin Winfield Medley, Trandon Allen Bender   +1 more
wiley   +1 more source

Enhanced ammonia-borane decomposition by synergistic catalysis using CoPd nanoparticles supported on titano-silicates [PDF]

, 2016
Pd and CoxPd1−x nanoparticles (NPs), synthesized using the reduction by solvent method, were loaded on SiO2 and Ti–SiO2 supports. The resulting catalysts were tested in the ammonia-borane decomposition reaction under dark and UV-vis conditions.
Berenguer-Murcia, Ángel, Cazorla-Amorós, Diego, García Aguilar, Jaime, Kuwahara, Yasutaka, Mori, Kohsuke, Navlani-García, Miriam, Yamashita, Hiromi   +6 more
core   +2 more sources

Push–Pull Ynamines and Push–Pull Ynamides: Synthesis, Structure, Reactivity, and Application

European Journal of Organic Chemistry, EarlyView.
Push–pull ynamines and push–pull ynamides, which carry an EWG and an amino or amido group as EDG, are highly interesting classes of EDG‐EWG alkynes that have been intensively studied due to their exceptional reactivity. In this review, the synthesis, structure, reactivity, and application of push–pull ynamines, push–pull ynecarbamates, push–pull ...
Hans‐Joachim Gais
wiley   +1 more source

Emerging Trends in Organic Photoreactions Utilizing Disulfides

European Journal of Organic Chemistry, EarlyView.
Disulfides are versatile, nontoxic alternatives to metal photocatalysts. This review explores their role as photoactivated thiyl‐radical precursors and bifunctional catalysts (HAT/electron shuttling) in diverse transformations. Strategies for electronic tuning and development into recyclable heterogeneous materials are highlighted for sustainable ...
Sunil Kumar, Bolormaa Bayarkhuu, Hong Y. Cho, Jeehye Byun   +3 more
wiley   +1 more source