Hydrogen generation from the decomposition of hydrous hydrazine using amorphous NiB nanocatalysts prepared by chemical etching method

2019 ◽  
Vol 12 (01) ◽  
pp. 1850097 ◽  
Author(s):  
Lei Wei ◽  
Maixia Ma ◽  
Wenjuan Li ◽  
Dongsheng Wang ◽  
Xiaolong Dong ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Specific Surface ◽  
Chemical Etching ◽  
Reduction Method ◽  
Hydrogen Generation ◽  
Turnover Frequency ◽  
Metal Free ◽  
High Efficient ◽  
Hydrogen Selectivity ◽  
Co Reduction

Hydrous hydrazine (N2H[Formula: see text]O) is considered to be one of the most promising chemicals for hydrogen storage, and the development of high-efficient and noble-metal-free catalysts is of key importance for N2H[Formula: see text]O decomposition to generate hydrogen. In this work, NiZnB nanoparticles (NiZnB NPs) synthesized by co-reduction method were further treated to remove the metal zinc by chemical etching with sodium hydroxide, and the resulting amorphous NiB nanocatalysts (NiB NCs) presented higher specific surface area and hydrogen selectivity than that of common NiB nanoparticles. Experimental results also indicate that heat-treatment of the NiZnB NPs can increase turnover frequency (TOF) but decrease hydrogen selectivity of the NiB NCs. NiB NCs derived from NiZnB NPs heated at 200[Formula: see text]C show TOF and selectivity of 0.72[Formula: see text]h[Formula: see text] and 98.1%, respectively. In addition, reusability of the resulting catalyst was also investigated.

Efficient hydrogen generation from formic acid using AgPd nanoparticles immobilized on carbon nitride-functionalized SBA-15

RSC Advances ◽  
2016 ◽  
Vol 6 (52) ◽  
pp. 46908-46914 ◽  
Author(s):  
Lixin Xu ◽  
Bo Jin ◽  
Jian Zhang ◽  
Dang-guo Cheng ◽  
Fengqiu Chen ◽  
...  
Keyword(s):  
Formic Acid ◽  
Carbon Nitride ◽  
Reduction Method ◽  
Hydrogen Generation ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Co Reduction ◽  
First Time

Bimetallic AgPd nanoparticles were successfully immobilized on graphitic carbon nitride (g-C3N4) functionalized SBA-15 for the first time by a facile co-reduction method.

Noble-metal-free NiFe nanoparticles immobilized on nano CeZrO2 solid solutions for highly efficient hydrogen production from hydrous hydrazine

2019 ◽  
Vol 3 (11) ◽  
pp. 3071-3077 ◽  
Author(s):  
Hongtao Zou ◽  
Qilu Yao ◽  
Meiling Huang ◽  
Meihua Zhu ◽  
Fei Zhang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Production ◽  
Noble Metal ◽  
Solid Solutions ◽  
Reduction Method ◽  
Hydrogen Generation ◽  
High Catalytic Activity ◽  
Metal Free ◽  
Highly Efficient ◽  
Hydrazine Solution

Noble-metal-free NiFe nanoparticles were successfully immobilized on nano CeZrO2 solid solutions by a simple impregnation–reduction method, exhibiting a high catalytic activity and 100% H2 selectivity for hydrogen generation from hydrazine solution.

An amine-functionalized mesoporous silica-supported PdIr catalyst: boosting room-temperature hydrogen generation from formic acid

2020 ◽  
Vol 7 (3) ◽  
pp. 709-717 ◽  
Author(s):  
Wendan Nie ◽  
Yixing Luo ◽  
Qifeng Yang ◽  
Gang Feng ◽  
Qilu Yao ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Formic Acid ◽  
Surface Functionalization ◽  
Room Temperature ◽  
Reduction Method ◽  
Hydrogen Generation ◽  
Functionalized Mesoporous Silica ◽  
Amine Functionalized ◽  
Co Reduction

PdIr/SBA-15-NH2 nanocomposites were synthesized via a facile surface functionalization and co-reduction method and used as a superior catalyst for complete and fast dehydrogenation of formic acid at room temperature.

Design of ZnMoO4 porous nanosheet with oxygen vacancy as better performance electrode material for supercapacitor

2021 ◽  
Author(s):  
Pengxi Li ◽  
Jiepeng Wang ◽  
Liming Li ◽  
Shili Song ◽  
Xianming Yuan ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Oxygen Vacancy ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Electrode Material ◽  
Reduction Method

ZnMoO4 with oxygen vacancy (ZnMoO4-OV) porous nanosheet was synthesized by hydrothermal synthesis and hydrogenation reduction method. The ZnMoO4-OV porous nan sheet delivers a higher specific surface area together with a...

Boron nitride supported NiCoP nanoparticles as noble metal-free catalyst for highly efficient hydrogen generation from ammonia borane

2019 ◽  
Vol 44 (10) ◽  
pp. 4764-4770 ◽  
Author(s):  
Xin Zhou ◽  
Xu-Feng Meng ◽  
Jun-Min Wang ◽  
Ning-Zhao Shang ◽  
Tao Feng ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Noble Metal ◽  
Hydrogen Generation ◽  
Ammonia Borane ◽  
Metal Free ◽  
Highly Efficient

Modification of Hydrogen Zeolite with CeO2 and its Catalysis Application for Preparing Aspirin

2014 ◽  
Vol 809-810 ◽  
pp. 884-889
Author(s):  
Zhen Tan ◽  
Hui Ying Chen ◽  
Bi Hao Lan ◽  
Xiang Wen Tong ◽  
Xiao Mei Ba
Keyword(s):  
Heat Treatment ◽  
Calcination Temperature ◽  
Catalytic Efficiency ◽  
Optimal Conditions ◽  
Calcination Time ◽  
Zeolite Framework ◽  
High Efficient ◽  
Zeolite Particle ◽  
Before And After ◽  
Impregnation Temperature

Hydrogen zeolite was modified with CeO2 by impregnation - filtration - heat treatment. Hydrogen-zeolite samples before and after modification were characterized by XRD and SEM. The catalytic efficiency of modified hydrogen-zeolite was investigated. Such modification conditions were explored: as the CeO2 percentage, calcination temperature, calcination time, impregnation temperature. The results show that the optimal CeO2 percentage is 0.5%, calcination temperature is 600°C, calcination time is 2h, impregnation temperature is 75°C. The aspirin yield reaches 78.3% under the optimal conditions, compared with that (64.8%) catalyzed by sulfuric acid and that (70.4%) catalyzed by unmodified zeolite. XRD, SEM characterizations show that Ce ions can be doped into the zeolite framework. And the modification makes the zeolite particle size become smaller, which is reduced to 50.5nm from 56.76nm. A high efficient and eco-enviromently catalyst was got by modification.

High efficient noble metal free Zn(O,S) nanoparticles for hydrogen evolution

2017 ◽  
Vol 42 (9) ◽  
pp. 5638-5648 ◽  
Author(s):  
Hairus Abdullah ◽  
Dong-Hau Kuo ◽  
Xiaoyun Chen
Keyword(s):  
Hydrogen Evolution ◽  
Noble Metal ◽  
Metal Free ◽  
High Efficient
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