Monodispersed bimetallic nanoparticles anchored on TiO2-decorated titanium carbide MXene for efficient hydrogen production from hydrazine in aqueous solution

2020 ◽  
Vol 155 ◽  
pp. 1293-1301 ◽  
Author(s):  
Feng Guo ◽  
Hongtao Zou ◽  
Qilu Yao ◽  
Bin Huang ◽  
Zhang-Hui Lu
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Production ◽  
Titanium Carbide ◽  
Bimetallic Nanoparticles

Cationic poly-L-amino acid-enhanced selective hydrogen production based on formate decomposition with platinum nanoparticles dispersed by polyvinylpyrrolidone

2021 ◽  
Author(s):  
Yusuke Minami ◽  
Yutaka Amao
Keyword(s):  
Aqueous Solution ◽  
Amino Acid ◽  
Hydrogen Production ◽  
Formic Acid ◽  
Platinum Nanoparticles ◽  
Hydrogen Carrier ◽  
Low Toxicity ◽  
Formate Decomposition

Formate is attracting attention as a hydrogen carrier because of its low toxicity and easy handling in aqueous solution. In order to utilize formic acid as a hydrogen carrier, a...

Synthesis of Bimetallic AuPt Nanoparticles in Aqueous Solution and Electrocatalytic Activity

2005 ◽  
Vol 900 ◽  
Author(s):  
Peter N. Njoki ◽  
Jin Luo ◽  
Aisley Jacob ◽  
Rizwan Munawar ◽  
Bilal Khan ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Electrocatalytic Activity ◽  
Bimetallic Nanoparticles ◽  
Rotating Disk ◽  
Reduction Reaction ◽  
Rotating Disk Electrode ◽  
Morphological Properties ◽  
Nanoparticle Catalysts ◽  
Bimetallic Nanoparticle

ABSTRACTThe ability to control composition and size in the synthesis of bimetallic nanoparticles is important for the exploitation of the bimetallic catalytic properties. This paper reports recent findings of an investigation of the synthesis of gold-platinum (AuPt) bimetallic nanoparticles in aqueous solution via reduction of AuCl4− and PtCl42− using a combination of reducing and capping agents. In addition to characterization of the morphological properties of the AuPt nanoparticles using TEM and XRD, the electrocatalytic activity of the carbon-supported AuPt nanoparticle catalysts was also examined for oxygen reduction reaction (ORR) using the rotating disk electrode (RDE) technique. The findings have implications to the design of bimetallic nanoparticle catalysts for fuel cell reactions.

La(OH)3 nanosheet-supported CoPt nanoparticles: a highly efficient and magnetically recyclable catalyst for hydrogen production from hydrazine in aqueous solution

2019 ◽  
Vol 7 (16) ◽  
pp. 9903-9911 ◽  
Author(s):  
Kun Wang ◽  
Qilu Yao ◽  
Shaojun Qing ◽  
Zhang-Hui Lu
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Production ◽  
Recyclable Catalyst ◽  
Synthetic Process ◽  
Highly Efficient ◽  
Highly Effective ◽  
One Step ◽  
Shape Controlled ◽  
Magnetically Recyclable Catalyst ◽  
Co Reduction

Bimetallic CoPt nanoparticles supported on shape-controlled La(OH)3 were synthesized by a one-step co-reduction synthetic process and used as a highly effective and magnetically recyclable catalyst for the selective decomposition of hydrous hydrazine.

Photocatalytic Cr(VI) Reduction by Anodized TiO2

2008 ◽  
Vol 569 ◽  
pp. 221-224 ◽  
Author(s):  
Jae Kyung Yoon ◽  
Eun Jung Shim ◽  
Jin Wook Ha ◽  
Hyun Ku Joo
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Production ◽  
Zeta Potential ◽  
Environmental Remediation ◽  
Annealing Temperature ◽  
Experimental Conditions ◽  
Novel Technique ◽  
Reduction Efficiency ◽  
Lower Annealing Temperature ◽  
Acidic Conditions

In this study, immobilized nanotubular TiO2 is used to reduce toxic Cr(VI) to non toxic Cr(III) in aqueous solution under UV irradiation. To overcome the limitation of powder TiO2, a novel technique of immobilization based on anodization was applied and investigated under various experimental conditions. Among the samples tested under same anodizing condition, the nanotubular TiO2 annealed at 450 oC and 550 oC showed higher reduction efficiencies of Cr(VI). In addition, the surface characterizations (zeta potential, XRD and SEM) of these samples proved that the Cr(VI) reduction efficiency was higher under acidic conditions and at a lower annealing temperature. Through this study, it was concluded that anodized TiO2 has the potential to be useful technology for environmental remediation as well as hydrogen production in water.

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