Results 41 to 50 of about 11,878 (246)

Analysis of Mono-, Di- and Oligosaccharides by CE Using a Two-Stage Derivatization Method and LIF Detection. [PDF]

open access: yes, 2009
A sensitive CE with LIF method has been developed for quantitative analysis of small carbohydrates. In this work, 17 carbohydrates including mono-, di- and oligosaccharides were simultaneously derivatized with 4-fluoro 7-nitrobenzo furazane (NBD-F) via ...
Barrett, DA   +4 more
core   +2 more sources

Merging Biocatalysis and Chemocatalysis in Flow: State‐of‐the‐Art and Future Directions for Sustainable Synthesis

open access: yesAngewandte Chemie, EarlyView.
This review highlights recent advances in integrating biocatalysis and chemocatalysis in continuous flow to create streamlined, sustainable processes. It examines chemo‐enzymatic cascades combining at least one enzymatic and one chemical step, discusses challenges such as enzyme immobilization, leaching, and reactor clogging, and presents solutions ...
Petros Siasiaridis   +2 more
wiley   +2 more sources

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

open access: yesEnergies, 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   +4 more
doaj   +1 more source

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

open access: yesEnergies, 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   +3 more
doaj   +1 more source

Photolysis of Diborane at 1849 Å [PDF]

open access: yes, 1962
The photolysis of diborane at 1849 Å has been studied in a specially constructed, internal‐type mercury‐vapor lamp. The products have been found to be H_2, B_(4)H_(10), B_(5)H_(11), and, at low pressures, a —BH— polymer.
Kreye, W. C., Marcus, R. A.
core   +1 more source

Rh/Ti3C2Tx MXene catalyst: its synthesis and application in the decomposition of ammonia borane to hydrogen

open access: yes上海师范大学学报. 自然科学版, 2021
The two-dimensional transition metal carbides and carbonitrides (MXene) based catalyst has excellent catalytic activity for the hydrolysis and hydrogen production reaction.
ZHANG Qingxiao   +4 more
doaj   +1 more source

Portable Power Generation for Remote Areas Using Hydrogen Generated via Maleic Acid-Promoted Hydrolysis of Ammonia Borane

open access: yesMolecules, 2019
A significant drawback to ammonia borane as a hydrogen storage material is the production of ammonia gas during hydrolysis. As a possible solution, maleic acid is shown to be capable of fully promoting hydrolysis of ammonia borane while also preventing ...
Taylor B. Groom   +2 more
doaj   +1 more source

Nanoconfined ammonia borane in a flexible metal-organic framework Fe-MIL-53: clean hydrogen release with fast kinetics [PDF]

open access: yes, 2013
We demonstrated the dehydrogenation behaviour of nanoconfined ammonia borane (AB) in Fe–MIL-53, a flexible metal–organic framework (MOF) by solid state thermolysis.
Ford, J   +5 more
core   +1 more source

Surface-Controlled Conversion of Ammonia Borane from Boron Nitride

open access: yesEnergies, 2020
“One-pot regeneration”, which is simple regneneration method of ammonia borane (AB) using hydrazine and liquid ammonia, enables conversion of AB from hexagonal boron nitride (h-BN) after milling hydrogenation. Solution 11B-NMR revealed the presence of AB
Tessui Nakagawa   +6 more
doaj   +1 more source

Nanocatalysts for Hydrogen Generation from Ammonia Borane and Hydrazine Borane [PDF]

open access: yesJournal of Nanomaterials, 2014
Ammonia borane (denoted as AB, NH3BH3) and hydrazine borane (denoted as HB, N2H4BH3), having hydrogen content as high as 19.6 wt% and 15.4 wt%, respectively, have been considered as promising hydrogen storage materials. Particularly, the AB and HB hydrolytic dehydrogenation system can ideally release 7.8 wt% and 12.2 wt% hydrogen of the starting ...
Zhang-Hui Lu   +4 more
openaire   +2 more sources

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