Ruthenium supported on MIL-101 as an efficient catalyst for hydrogen generation from hydrolysis of amine boranes

2014 ◽  
Vol 38 (9) ◽  
pp. 4032 ◽  
Author(s):  
Nan Cao ◽  
Teng Liu ◽  
Jun Su ◽  
Xiaojun Wu ◽  
Wei Luo ◽  
...  
Keyword(s):  
Hydrogen Generation ◽  
Efficient Catalyst ◽  
Amine Boranes ◽  
Hydrolysis Of

Efficient hydridoirida-β-diketone-catalyzed hydrolysis of ammonia- or amine-boranes for hydrogen generation in air

2013 ◽  
Vol 42 (32) ◽  
pp. 11652 ◽  
Author(s):  
María A. Garralda ◽  
Claudio Mendicute-Fierro ◽  
Antonio Rodríguez-Diéguez ◽  
José M. Seco ◽  
Carlos Ubide ◽  
...  
Keyword(s):  
Hydrogen Generation ◽  
Amine Boranes ◽  
Hydrolysis Of

Porous Co3O4 nanoplatelets as efficient catalyst precursor for hydrogen generation from the hydrolysis of alkaline sodium borohydride solution

2019 ◽  
Vol 12 (01) ◽  
pp. 1850109 ◽  
Author(s):  
Maixia Ma ◽  
Lei Wei ◽  
Fang Jin
Keyword(s):  
Sodium Borohydride ◽  
Hydrogen Generation ◽  
Catalyst Precursor ◽  
Efficient Catalyst ◽  
Noble Metal Catalysts ◽  
Reaction Solution ◽  
High Efficient ◽  
Catalyst Morphology ◽  
Hydrolysis Of ◽  
Calcination Treatment

For hydrogen generation from sodium borohydride hydrolysis, high-efficient catalyst precursor of porous Co3O4 nanoplatelets was successfully achieved by a combined process of hydrothermal synthesis and calcination treatment. Effects of calcination temperature on catalyst morphology and activity were mainly investigated, and the optimal condition was established. Using a reaction solution comprising 10[Formula: see text]wt.% NaBH4 and 2[Formula: see text]wt.% NaOH, the porous Co3O4 nanoplatelets exhibited a maximum hydrogen generation rate up to 19.52[Formula: see text]L[Formula: see text]min[Formula: see text] g[Formula: see text] at the temperature of 25[Formula: see text]C, which was much higher than similar Co3O4 catalyst precursors and noble metal catalysts in literature.

Ni-, Co- and Pt-based nanocatalysts for hydrogen generation via hydrolysis of NaBH4

2021 ◽  
pp. 94-104
Author(s):  
V. Yartys ◽  
◽  
I. Zavaliy ◽  
A. Kytsya ◽  
V. Berezovets ◽  
...  
Keyword(s):  
Metallic Nanoparticles ◽  
Hydrogen Generation ◽  
Bimetallic Nanoparticles ◽  
Exchange Capacity ◽  
Polyol Synthesis ◽  
Efficient Catalyst ◽  
Co Nanoparticles ◽  
Modified Polyol Method ◽  
Hydrolysis Of ◽  
Hydrolysis Of Nabh4

Ni-, Co- and Pt-based nanostructures were prepared via different physical-chemical methods and tested as the catalysts of hydrolysis of NaBH4. Ni-Co bimetallic nanoparticles with different Ni-Co ratios were synthesized by the modified polyol method via the reduction of in situ precipitated slurries of Ni and Co hydroxides by hydrazine in ethylene glycol solutions. It was found that a Ni- Co nanoparticles with the equal Ni/Co content and mean size of 130 nm are a more active catalyst as compared to Ni75Co25 and Ni25Co75 nanopowders and provide a constant rate of hydrogen evolution up to the full conversion of NaBH4. Zeolite supported Ni- and Co-based nanostructures (Ni-Z and Co-Z) as a convenient in use alternative to the metallic nanoparticles were synthesized via two-stage procedure consisted of adsorption of Ni2+ or Co2+ ions by zeolite from the aqueous solutions followed by the reduction of the adsorbed cations by NaBH4. Using SEM and EDX it was found that such method of synthesis provide the uniform distribution of 50 – 100 nm metallic nanopaticles both on the surface and in the bulk of the carrier due to the high cation-exchange capacity of the aluminosilicates. It was found that Co-Z catalyst is more active compared to Ni-Z and in studied conditions provides the H2 evolution rate close to 1450 mL/min per 1 g of precipitated metal. Various Pt-based nanocomposites were obtained by polyol synthesis and subsequently deposited on the carriers (carbon cloth or cordierite) as well as via a platinum electrodeposition on the titanium crump. It was found that the most efficient catalyst of the hydrolysis of NaBH4 is a cordierite-supported nanodispersed Pt which is able to maintain operation of a 30 W battery of fuel cells for 9-10 hours when using for the hydrolysis 1.1 L of 10 % NaBH4 solution.

scholarly journals Ru Nanoparticles Supported on MIL-101 by Double Solvents Method as High-Performance Catalysts for Catalytic Hydrolysis of Ammonia Borane

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Tong Liu ◽  
Qingtao Wang ◽  
Bingzheng Yan ◽  
Mei Zhao ◽  
Wenbo Li ◽  
...  
Keyword(s):  
High Performance ◽  
Hydrogen Generation ◽  
Catalytic Hydrolysis ◽  
X Ray Diffraction ◽  
X Ray ◽  
Ru Nanoparticles ◽  
Amine Boranes ◽  
Adsorption Desorption ◽  
Hydrolysis Of ◽  
Catalytic Test

Highly dispersed crystalline Ru nanoparticles (NPs) were successfully immobilized inside the pores of MIL-101 by a double solvents method (DSM). HRTEM clearly demonstrated the uniform distribution of the ultrafine Ru NPs throughout the interior cavities of MIL-101. The synthesized Ru@MIL-101 catalyst was also characterized by X-ray diffraction (XRD), N2adsorption desorption, and ICP-AES. The catalytic test indicated that the Ru NPs supported MIL-101 material exhibited exceedingly high activity and excellent durability for hydrogen generation from the catalytic hydrolysis of amine boranes.

Anchoring ultrafine RhNi nanoparticles on titanium carbides/manganese oxide as an efficient catalyst for hydrogen generation from hydrous hydrazine

2018 ◽  
Vol 42 (24) ◽  
pp. 20001-20006 ◽  
Author(s):  
Bing Yin ◽  
Qingtao Wang ◽  
Tong Liu ◽  
Guanhui Gao
Keyword(s):  
Manganese Oxide ◽  
Hydrogen Generation ◽  
Efficient Catalyst ◽  
Titanium Carbides

RhNi NPs of 2.8 nm are successfully monodispersed on the bi-support MnOx/MXene surface.

ISOBAM-stabilized Ni2+ colloidal catalysts: high catalytic activities for hydrogen generation from hydrolysis of KBH4

2020 ◽  
Vol 31 (13) ◽  
pp. 134003 ◽  
Author(s):  
Yuantao Pei ◽  
Liqiong Wang ◽  
Liang Huang ◽  
Yuetong Hu ◽  
Quanli Jia ◽  
...  
Keyword(s):  
Hydrogen Generation ◽  
Catalytic Activities ◽  
Hydrolysis Of

Hydrogen Generation by Hydrolysis of the Ball Milled Al-C-KCl Composite Powder in Distilled Water

2012 ◽  
Vol 519 ◽  
pp. 87-91 ◽  
Author(s):  
Xia Ni Huang ◽  
Zhang Han Wu ◽  
Ke Cao ◽  
Wen Zeng ◽  
Chun Ju Lv ◽  
...  
Keyword(s):  
Particle Size ◽  
Reaction Temperature ◽  
Fine Particle ◽  
Composite Powder ◽  
Hydrogen Generation ◽  
Aluminum Particle ◽  
Generation Rate ◽  
Composite Powders ◽  
Fine Particle Size ◽  
Hydrolysis Of

In the present investigation, the Al-C-KCl composite powders were prepared by a ball milling processing in an attempt to improve the hydrogen evolution capacity of aluminum in water. The results showed that the hydrogen generation reaction is affected by KCl amount, preparation processing, initial aluminum particle size and reaction temperature. Increasing KCl amount led to an increased hydrogen generation volume. The use of aluminum powder with a fine particle size could promote the aluminum hydrolysis reaction and get an increased hydrogen generation rate. The reaction temperature played an important role in hydrogen generation rate and the maximum hydrogen generation rate of 44.8 cm3 min-1g-1of Al was obtained at 75oC. The XRD results identified that the hydrolysis byproducts are bayerite (Al(OH)3) and boehmite (AlOOH).

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