Results 31 to 40 of about 3,729 (203)

Complexation of Ammonia Boranes with Al³⁺

Inorganic Chemistry, 2019
Ammonia borane, NH3BH3 (AB), is very attractive for hydrogen storage; however, it dehydrogenates exothermally, producing a mixture of polymeric products with limited potential for direct rehydrogenation. Recently, it was shown that AB complexed with Al3+ in Al(BH4)3·AB endothermically dehydrogenates to a single product identified as Al(BH4)3·NHBH, with
Iurii Dovgaliuk, Kasper T. Møller, Koen Robeyns, Véronique Louppe, Torben R. Jensen, Yaroslav Filinchuk   +5 more
openaire   +4 more sources

Pd/BP2000 Nanocomposites: Efficient Catalyst for Hydrolytic Dehydrogenation of Ammonia-borane

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2022
In current work, the activity of BP2000 supported Pd nanoparticles (NPs) were researched based on hydrolysis of ammonia borane (AB) reaction. Borane-tert-butylamine used for reduction of palladium (II) acetylacetonate for synthesize procedure of Pd NPs ...
Melike Sevim
doaj   +1 more source

Porous Materials for Hydrolytic Dehydrogenation of Ammonia Borane [PDF]

Materials, 2015
Hydrogen storage is still one of the most significant issues hindering the development of a “hydrogen energy economy”. Ammonia borane is notable for its high hydrogen densities. For the material, one of the main challenges is to release efficiently the maximum amount of the stored hydrogen.
Umegaki, Tetsuo, Xu, Qiang, Kojima, Yoshiyuki   +2 more
openaire   +2 more sources

Polarity‐Directed Synthesis of an Exfoliable 2D Polyoxometalate‐Based Metal‐Organic Framework for Noble Metal‐Free Alkyne Transfer Semi‐Hydrogenation

Angewandte Chemie, EarlyView.
Exfoliation of 2D nanosheets based on polyoxometalate metal‐organic frameworks (POMOFs) gives access to nanostructures with selective catalytic reactivity for the alkyne transfer semi‐hydrogenation which outperform the bulk references and rival some classical noble metal‐based catalysts.
Xusheng Dai, Yalei Zhang, Yue Zhao, Shujun Li, Nana Ma, Qingchun Xia, Yiwei Liu, Rongji Liu, Shuxia Liu, Xuenian Chen, Carsten Streb   +10 more
wiley   +2 more sources

Increasing Hydrogen Density with the Cation-Anion Pair BH4−-NH4+ in Perovskite-Type NH4Ca(BH4)3

Energies, 2015
A novel metal borohydride ammonia-borane complex Ca(BH4)2·NH3BH3 is characterized as the decomposition product of the recently reported perovskite-type metal borohydride NH4Ca(BH4)3, suggesting that ammonium-based metal borohydrides release hydrogen gas ...
Pascal Schouwink, Fabrice Morelle, Yolanda Sadikin, Yaroslav Filinchuk, Radovan Černý   +4 more
doaj   +1 more source

Nucleophilic Gallyl Anions Enable Ga─Au Bimetallic Ammonia Activation

Angewandte Chemie, EarlyView.
Unlocking gallyl nucleophiles: Counterion control enables formation of an unsupported gallyl─gold complex. Gold coordination induces a polarity switch at gallium, enabling cooperative activation of NH3 and related N─H/O─H substrates under mild conditions.
Hellen Videa, Keelan M. Byrne, Tobias Krämer, Antonio J. Martínez‐Martínez   +3 more
wiley   +2 more sources

Terminal uranium(V)-nitride hydrogenations involving direct addition or Frustrated Lewis Pair mechanisms

Nature Communications, 2020
Despite their importance as mechanistic models for Haber Bosch ammonia synthesis from N2 and H2, high oxidation state terminal metal-nitrides are notoriously unreactive towards H2.
Lucile Chatelain, Elisa Louyriac, Iskander Douair, Erli Lu, Floriana Tuna, Ashley J. Wooles, Benedict M. Gardner, Laurent Maron, Stephen T. Liddle   +8 more
doaj   +1 more source

Destabilization of Boron-Based Compounds for Hydrogen Storage in the Solid-State: Recent Advances

Energies, 2021
Boron-based materials have been widely studied for hydrogen storage applications. Examples of these compounds are borohydrides and boranes. However, all of these present some disadvantages that have hindered their potential application as hydrogen ...
Carlos A. Castilla-Martinez, Romain Moury, Salem Ould-Amara, Umit B. Demirci   +3 more
doaj   +1 more source

Methanolysis of Ammonia Borane by CoPd Nanoparticles

ACS Catalysis, 2012
Exxon Mobil; National Natural Science Foundation of China [21036004, 21106117]; Scientific and Technological Research Council of Turkey (TUBITAK) [2214]; METU-DPT-OYP of Ataturk ...
Sun, Daohua, Mazumder, Vismadeb, Metin, Onder, Sun, Shouheng   +3 more
openaire   +4 more sources

Metal‐free Hydrogen Generation from Seawater and Silicon Waste: A Circular Approach

Angewandte Chemie, EarlyView.
Hydrogen was rapidly generated directly from untreated seawater and polymeric Si waste without any transition metal catalyst. The in situ generated polymeric cross‐linked Si resin was completely depolymerized under mild conditions into chloro‐silane monomers.
Mustapha Hamdaoui, Anja Steinmaurer, Philipp Jernej, Daniel Legenstein, Peter Hartmann, Adrian Daniel Boese, Katalin Barta   +6 more
wiley   +2 more sources