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.

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.

Magnetic, recyclable PtyCo1−y/Ti3C2X2 (X = O, F) catalyst: a facile synthesis and enhanced catalytic activity for hydrogen generation from the hydrolysis of ammonia borane

2017 ◽  
Vol 41 (7) ◽  
pp. 2793-2799 ◽  
Author(s):  
Guangyin Fan ◽  
Xiaojing Li ◽  
Yuling Ma ◽  
Yun Zhang ◽  
Jiangtao Wu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Room Temperature ◽  
Hydrogen Generation ◽  
Ammonia Borane ◽  
Catalytic Performance ◽  
Facile Synthesis ◽  
Hydrolysis Of ◽  
Excellent Catalytic Performance ◽  
Magnetic Recyclable

Magnetic recyclable PtyCo1−y/Ti3C2X2 (X = O, F) catalyst exhibits excellent catalytic performance for the hydrolysis of AB at room temperature.

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.

Room-temperature quasi-catalytic hydrogen generation from waste and water

2021 ◽  
Vol 23 (19) ◽  
pp. 7528-7533
Author(s):  
Hongguo Wu ◽  
Li-Long Zhang ◽  
Junqi Wang ◽  
Yiyuan Jiang ◽  
Hu Li ◽  
...  
Keyword(s):  
Room Temperature ◽  
Hydrogen Generation ◽  
Cost Effective ◽  
Green Solvent ◽  
Catalytic Hydrogen

A cost-effective, green solvent-enabled waste hydrosilane hydrolysis/alcoholysis protocol is developed for the quantitative generation of H2 in minutes without any catalyst at room temperature.

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
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