scholarly journals Ultrafine Pd Nanoparticles Supported on Soft Nitriding Porous Carbon for Hydrogen Production from Hydrolytic Dehydrogenation of Dimethyl Amine-Borane

Nanomaterials ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1612
Author(s):  
Zhaoyu Wen ◽  
Qiong Fu ◽  
Jie Wu ◽  
Guangyin Fan
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Hydrogen Generation ◽  
Pd Nanoparticles ◽  
Catalytic Performance ◽  
Pd Catalysts ◽  
Nano Catalyst ◽  
Dimethyl Amine ◽  
Catalytic Hydrogen ◽  
Hydrolysis Of

Simple and efficient synthesis of a nano-catalyst with an excellent catalytic property for hydrogen generation from hydrolysis of dimethyl amine-borane (DMAB) is a missing piece. Herein, effective and recycled palladium (Pd) nanoparticles (NPs) supported on soft nitriding porous carbon (NPC) are fabricated and applied for DMAB hydrolysis. It is discovered that the soft nitriding via a low-temperature urea-pretreatment induces abundant nitrogen-containing species on the NPC support, thus promoting the affinity of the Pd precursor and hindering the agglomeration of formed Pd NPs onto the NPC surface during the preparation process. Surface-clean Pd NPs with a diameter of sub-2.0 nm deposited on the NPC support (Pd/NPC) exhibit an outstanding catalytic performance with a turnover frequency (TOF) of 2758 h−1 toward DMAB hydrolysis, better than many previous reported Pd-based catalysts. It should be emphasized that the Pd/NPC also possesses a good stability without an obvious decrease in catalytic activity for DMAB hydrolysis in five successive recycling runs. This study provides a facile but efficient way for preparing high-performance Pd catalysts for catalytic hydrogen productions.

AMORPHOUS Ni/C MICROSPHERES FOR CATALYTIC HYDROGEN GENERATION THROUGH HYDROLYSIS OF AMMONIA BORANE AND ELECTROCHEMICAL OXIDATION OF UREA

2019 ◽  
Vol 26 (01) ◽  
pp. 1850132 ◽  
Author(s):  
HUI ZHAO ◽  
YANPING TIAN ◽  
YA LIU ◽  
YUQING MIAO
Keyword(s):  
High Pressure ◽  
Room Temperature ◽  
Hydrogen Generation ◽  
Catalytic Performance ◽  
Carbon Microspheres ◽  
Wastewater Remediation ◽  
Simultaneous Production ◽  
Catalytic Hydrogen ◽  
Viable Method ◽  
Hydrolysis Of

The amorphous nickel/carbon microspheres (Ni/C-MSs) were synthesized through dehydration and carbonization of glucose at high temperature and high pressure. The obtained Ni/C-MSs and the Ni/C-800-MSs (calcined at 800[Formula: see text]C) were thoroughly characterized on morphology, composition and catalytic performance. It is found that the Ni/C-MSs showed good catalytic performance for hydrogen generation from aqueous H3NBH3 at room temperature. Urea was oxidized electrocatalytically by Ni/C-800-MSs in alkaline medium, indicating a viable method for wastewater remediation and simultaneous production of valuable hydrogen.

A review of transition-metal boride/phosphide-based materials for catalytic hydrogen generation from hydrolysis of boron-hydrides

2018 ◽  
Vol 5 (4) ◽  
pp. 760-772 ◽  
Author(s):  
Hongming Sun ◽  
Jing Meng ◽  
Lifang Jiao ◽  
Fangyi Cheng ◽  
Jun Chen
Keyword(s):  
Transition Metal ◽  
Hydrogen Generation ◽  
Metal Boride ◽  
Hydrogen Economy ◽  
Boron Hydrides ◽  
Catalytic Hydrogen ◽  
And Storage ◽  
Hydrolysis Of ◽  
Essential Prerequisite

Efficient hydrogen generation and storage is an essential prerequisite of a future hydrogen economy.

scholarly journals Copper Nanowires as Highly Efficient and Recyclable Catalyst for Rapid Hydrogen Generation from Hydrolysis of Sodium Borohydride

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1153 ◽  
Author(s):  
Aina Shasha Hashimi ◽  
Muhammad Amirul Nazhif Mohd Nohan ◽  
Siew Xian Chin ◽  
Poi Sim Khiew ◽  
Sarani Zakaria ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Sodium Borohydride ◽  
Fossil Fuels ◽  
Hydrogen Generation ◽  
Clean Energy ◽  
Catalytic Performance ◽  
Copper Nanowires ◽  
H2 Generation ◽  
Hydrolysis Of ◽  
Hydrolysis Of Nabh4

Hydrogen (H2) is a clean energy carrier which can help to solve environmental issues with the depletion of fossil fuels. Sodium borohydride (NaBH4) is a promising candidate material for solid state hydrogen storage due to its huge hydrogen storage capacity and nontoxicity. However, the hydrolysis of NaBH4 usually requires expensive noble metal catalysts for a high H2 generation rate (HGR). Here, we synthesized high-aspect ratio copper nanowires (CuNWs) using a hydrothermal method and used them as the catalyst for the hydrolysis of NaBH4 to produce H2. The catalytic H2 generation demonstrated that 0.1 ng of CuNWs could achieve the highest volume of H2 gas in 240 min. The as-prepared CuNWs exhibited remarkable catalytic performance: the HGR of this study (2.7 × 1010 mL min−1 g−1) is ~3.27 × 107 times higher than a previous study on a Cu-based catalyst. Furthermore, a low activation energy (Ea) of 42.48 kJ mol−1 was calculated. Next, the retreated CuNWs showed an outstanding and stable performance for five consecutive cycles. Moreover, consistent catalytic activity was observed when the same CuNWs strip was used for four consecutive weeks. Based on the results obtained, we have shown that CuNWs can be a plausible candidate for the replacement of a costly catalyst for H2 generation.

Graphene-based porous carbon-Pd/SnO2 nanocomposites with enhanced electrocatalytic activity and durability for methanol oxidation

2016 ◽  
Vol 4 (22) ◽  
pp. 8898-8904 ◽  
Author(s):  
Lirui Nan ◽  
Zetan Fan ◽  
Wenbo Yue ◽  
Qiao Dong ◽  
Lisha Zhu ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Porous Carbon ◽  
Electrocatalytic Activity ◽  
Pd Nanoparticles ◽  
Pd Catalysts ◽  
Supported Pd Catalysts ◽  
Supported Pd

Pd nanoparticles with a trace of SnO2 are prepared on a novel graphene-based porous carbon and they show dramatically improved electrocatalytic activity and durability for methanol oxidation compared to porous carbon supported Pd catalysts with SnO2 or graphene-based porous carbon supported Pd catalysts without SnO2.

Catalytic Hydrogen Generation from the Hydrolysis of Silanes by Ruthenium Complexes

2011 ◽  
Vol 30 (15) ◽  
pp. 4008-4013 ◽  
Author(s):  
Sze Tat Tan ◽  
Jun Wei Kee ◽  
Wai Yip Fan
Keyword(s):  
Hydrogen Generation ◽  
Ruthenium Complexes ◽  
Catalytic Hydrogen ◽  
Hydrolysis Of

scholarly journals Cinnamaldehyde hydrogenation using Au–Pd catalysts prepared by sol immobilisation

2018 ◽  
Vol 8 (6) ◽  
pp. 1677-1685 ◽  
Author(s):  
Stefano Cattaneo ◽  
Simon J. Freakley ◽  
David J. Morgan ◽  
Meenakshisundaram Sankar ◽  
Nikolaos Dimitratos ◽  
...  
Keyword(s):  
Catalytic Hydrogenation ◽  
Pd Nanoparticles ◽  
Catalytic Performance ◽  
Reaction Conditions ◽  
Pd Catalysts ◽  
Cinnamaldehyde Hydrogenation

We report the catalytic performance of Au–Pd nanoparticles prepared via a sol immobilisation technique for the catalytic hydrogenation of cinnamaldehyde under mild reaction conditions.

Hydrogen Generation from Hydrolysis of Sodium Borohydride Using Nanosized NiB Amorphous Alloy Catalysts

NANO ◽  
2020 ◽  
Vol 15 (06) ◽  
pp. 2050081
Author(s):  
Hongjing Yuan ◽  
Weitao Huo ◽  
Yongchao Hao ◽  
Yanna Wang ◽  
Weiye Qiao ◽  
...  
Keyword(s):  
Particle Size ◽  
Amorphous Alloy ◽  
Sodium Borohydride ◽  
Photoelectron Spectroscopy ◽  
Hydrogen Generation ◽  
Chemical Reduction ◽  
Catalytic Performance ◽  
X Ray ◽  
Transmission Electron ◽  
Hydrolysis Of

Generation of hydrogen by sodium borohydride solution had attracted lots of attention. A serial of nanosized NiB catalysts were prepared using the chemical reduction method through introducing AlCl3 into the preparation. Catalytic performance of NiB catalysts were investigated in the hydrolysis of alkaline NaBH4 solution. The catalysts were characterized by X-ray diffraction (XRD), N2 adsorption, Transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The results showed that NiB catalysts possessed amorphous alloy structure, and the particle size could be adjusted by the AlCl3 amount. Catalytic performance showed that NiB catalyst with smaller particle size had much higher activity. The NiB catalyst also displayed high stability, the catalytic activity could retain about 84% of its initial value after four cycles.

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