Synthesis and Electrocatalytic Performance of Ultrathin Noble Metal Nanosheets

CrystEngComm ◽  
2022 ◽  
Author(s):  
Dolong Zhu ◽  
haidong Zhao ◽  
Bin Wang ◽  
Shengchun Yang
Keyword(s):  
Catalytic Activity ◽  
Fuel Cells ◽  
Noble Metal ◽  
Chemical Stability ◽  
Biomedical Applications ◽  
High Catalytic Activity ◽  
Electrocatalytic Performance ◽  
Metal Nanomaterials

Noble metal nanomaterials are widely used in various fields such as catalysis, fuel cells, and biomedical applications due to their high catalytic activity, chemical stability, and biocompatibility. The performance of...

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.

One-pot synthesis of Co/N-doped mesoporous graphene with embedded Co/CoOx nanoparticles for efficient oxygen reduction reaction

Nanoscale ◽  
2017 ◽  
Vol 9 (29) ◽  
pp. 10233-10239 ◽  
Author(s):  
Yanli Niu ◽  
Xiaoqin Huang ◽  
Xiaoshuai Wu ◽  
Lei Zhao ◽  
Weihua Hu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
High Catalytic Activity ◽  
One Pot ◽  
One Pot Synthesis

Exploration of sustainable electrocatalysts toward oxygen reduction reaction (ORR) with high catalytic activity remains a key challenge in the development of metal–air batteries and fuel cells.

Hollow Ag/carbon microporous spheres with high catalytic activity based on a bio-inspiration polydopamine reaction platform

RSC Advances ◽  
2015 ◽  
Vol 5 (110) ◽  
pp. 91056-91061 ◽  
Author(s):  
Qian Zhang ◽  
Chen Zhou ◽  
Aisheng Huang
Keyword(s):  
Catalytic Activity ◽  
Noble Metal ◽  
Metal Catalysts ◽  
Catalytic Reactions ◽  
High Catalytic Activity ◽  
Noble Metal Catalysts

Based on polydopamine reaction platform, hollow Ag/carbon microporous spheres with high catalytic activity were prepared through a template-assisted method, which is promising to replace other noble metal catalysts in metal catalytic reactions.

scholarly journals Inorganic Nanozymes: Prospects for Disease Treatments and Detection Applications

2021 ◽  
Vol 9 ◽  
Author(s):  
Peng Wang ◽  
Dongyu Min ◽  
Guoyou Chen ◽  
Minghui Li ◽  
Liquan Tong ◽  
...  
Keyword(s):  
Surface Modification ◽  
Catalytic Activity ◽  
Metal Oxide ◽  
Noble Metal ◽  
Future Development ◽  
Size Structure ◽  
Tumor Therapy ◽  
High Catalytic Activity ◽  
Structure Surface ◽  
Catalytic Mechanisms

In recent years, with the development of nanomaterials, a slice of nanomaterials has been demonstrated to possess high catalytic activity similar to natural enzymes and counter the dilemmas including easy inactivation and low yield natural of enzymes, which are labeled as nanozymes. The catalytic activity of nanozymes could be easily regulated by size, structure, surface modification and other factors. In comparison with natural enzymes, nanozymes featured with a more stable structure, economical preparation and preservation, diversity of functions and adjustable catalytic activity, thus becoming the potentially ideal substitute for natural enzymes. Generally, the are mainly three types containing metal oxide nanozymes, noble metal nanozymes and carbon-based nanozymes, owing various applications in biomedical, energy and environmental fields. In this review, to summarize the recent representative applications of nanozymes, and potentially explore the scientific problems in this field at the same time, we are going to discuss the catalytic mechanisms of diverse nanozymes, with the emphasis on their applications in the fields of tumor therapy, anti-inflammatory and biosensing, hoping to help and guide the future development of nanozymes.

An effective strategy for preparing nickel nanoparticles encapsulated in polymer matrix-derived carbon shell with high catalytic activity and long-term durability toward urea electro-oxidation

2021 ◽  
Author(s):  
Quang Thien Luong ◽  
Sun Young Kang ◽  
Dohyeon Lee ◽  
Jihyeok Song ◽  
Mohanraju Karuppannan ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Catalytic Activity ◽  
Fuel Cells ◽  
Polymer Matrix ◽  
Nickel Nanoparticles ◽  
High Catalytic Activity ◽  
Effective Strategy ◽  
Practical Application ◽  
Electro Oxidation

Direct urea fuel cells have been recognised as a potential approach for sustainable development. However, the low catalytic activity of urea oxidation has hindered its practical application. Herein, by employing...

2D ultrathin surfactant-encapsulating polyoxometalate assemblies as carriers for monodispersing noble-metal nanoparticles with high catalytic activity and stability

2021 ◽  
Author(s):  
Yang-Guang Li ◽  
Xing-Yu Ji ◽  
Feiyang Yu ◽  
Yingqi Li ◽  
Hao-Tian Zhu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Metal Nanoparticles ◽  
Uniform Distribution ◽  
Noble Metal ◽  
Environmental Governance ◽  
Noble Metal Nanoparticles ◽  
High Catalytic Activity ◽  
Binding Force ◽  
Strong Binding

Noble-metal nanoparticles (NMNPs) with excellent catalytic activity and stability play an important role in the field of environmental governance. Uniform distribution and strong binding force with carriers of noble-metal nanoparticles...

scholarly journals Bimetallic Ni–Ru and Ni–Re Catalysts for Dry Reforming of Methane: Understanding the Synergies of the Selected Promoters

2021 ◽  
Vol 9 ◽  
Author(s):  
Andrea Álvarez Moreno ◽  
Tomás Ramirez-Reina ◽  
Svetlana Ivanova ◽  
Anne-Cécile Roger ◽  
Miguel Ángel Centeno ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Noble Metal ◽  
Dry Reforming ◽  
Coke Deposition ◽  
Dry Reforming Of Methane ◽  
Hydrogen Chemisorption ◽  
High Catalytic Activity ◽  
Reaction Conditions ◽  
Primary Strategy ◽  
Selection Of

Designing an economically viable catalyst that maintains high catalytic activity and stability is the key to unlock dry reforming of methane (DRM) as a primary strategy for biogas valorization. Ni/Al2O3 catalysts have been widely used for this purpose; however, several modifications have been reported in the last years in order to prevent coke deposition and deactivation of the samples. Modification of the acidity of the support and the addition of noble metal promoters are between the most reported strategies. Nevertheless, in the task of designing an active and stable catalyst for DRM, the selection of an appropriate noble metal promoter is turning more challenging owing to the lack of homogeneity of the different studies. Therefore, this research aims to compare Ru (0.50 and 2.0%) and Re (0.50 and 2.0%) as noble metal promoters for a Ni/MgAl2O4 catalyst under the same synthesis and reaction conditions. Catalysts were characterized by XRF, BET, XRD, TPR, hydrogen chemisorption (H2-TPD), and dry reforming reaction tests. Results show that both promoters increase Ni reducibility and dispersion. However, Ru seems a better promoter for DRM since 0.50% of Ru increases the catalytic activity in 10% and leads to less coke deposition.

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