Strong Metal-Support Interaction in Copper Hexacyanoferrate Nanocubes Decorated Functionalized Multiwall Carbon Nanotubes for Enhanced Bi-functional Oxygen Electrocatalytic Activity and Stability

2022 ◽  
Author(s):  
Priya Jain ◽  
Shwetambara Jha ◽  
Pravin Ingole
Keyword(s):  
Multiwall Carbon Nanotubes ◽  
Reduction Reaction ◽  
Copper Hexacyanoferrate ◽  
Storage Devices ◽  
Support Interaction ◽  
Metal Support Interaction ◽  
Energy Conversion And Storage ◽  
Metal Support ◽  
And Storage ◽  
Multiwall Carbon

Development of an efficient non-precious metal-based bi-functional oxygen electro-catalyst for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is crucial for various electrochemical energy conversion and storage devices. Prussian...

Influence of sp3–sp2 Carbon Nanodomains on Metal/Support Interaction, Catalyst Durability, and Catalytic Activity for the Oxygen Reduction Reaction

2016 ◽  
Vol 8 (35) ◽  
pp. 23260-23269 ◽  
Author(s):  
Carlos A. Campos-Roldán ◽  
Guadalupe Ramos-Sánchez ◽  
Rosa G. Gonzalez-Huerta ◽  
Jorge R. Vargas García ◽  
Perla B. Balbuena ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Support Interaction ◽  
Metal Support Interaction ◽  
Metal Support ◽  
Catalyst Durability

scholarly journals Platinum Deposited Nitrogen-Doped Vertically Aligned Carbon Nanofibers as Methanol Tolerant Catalyst for Oxygen Reduction Reaction with Improved Durability

Applied Nano ◽  
2021 ◽  
Vol 2 (4) ◽  
pp. 303-318
Author(s):  
Ayyappan Elangovan ◽  
Jiayi Xu ◽  
Archana Sekar ◽  
Sabari Rajendran ◽  
Bin Liu ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Nitrogen Doping ◽  
Carbon Nanofiber ◽  
Three Dimensional ◽  
Reduction Reaction ◽  
Support Interaction ◽  
Metal Support Interaction ◽  
Metal Support ◽  
Vertically Aligned

Nitrogen doping in carbon materials can modify the employed carbon material’s electronic and structural properties, which helps in creating a stronger metal-support interaction. In this study, the role of nitrogen doping in improving the durability of Pt catalysts supported on a three-dimensional vertically aligned carbon nanofiber (VACNF) array towards oxygen reduction reaction (ORR) was explored. The nitrogen moieties present in the N-VACNF enhanced the metal-support interaction and contributed to a reduction in the Pt particle size from 3.1 nm to 2.3 nm. The Pt/N-VACNF catalyst showed better durability when compared to Pt/VACNF and Pt/C catalysts with similar Pt loading. DFT calculations validated the increase in the durability of the Pt NPs with an increase in pyridinic N and corroborated the molecular ORR pathway for Pt/N-VACNF. Moreover, the Pt/N-VACNF catalyst was found to have excellent tolerance towards methanol crossover.

Pd Nanoparticles Loaded on TiO2-C Heterostructure via Photochemical Strategy for Efficient Oxygen Reduction Reaction

2021 ◽  
Author(s):  
Xiaoyu Wu ◽  
Qiaoling Li ◽  
Xuewei Wang ◽  
Zhi Xie ◽  
Xiaojing Yang ◽  
...  
Keyword(s):  
Palladium Catalysts ◽  
Polymer Electrolyte Membrane ◽  
Pd Nanoparticles ◽  
Reduction Reaction ◽  
Electrochemical Stability ◽  
Electrolyte Membrane ◽  
Support Interaction ◽  
Metal Support Interaction ◽  
Metal Support ◽  
Key Issues

The electrochemical stability and catalytic activity of palladium catalysts are key issues in polymer electrolyte membrane fuel cells (PEMFC). Here, to take full advantages of the strong metal-support interaction (SMSI),...

Uniform Pt nanoparticles supported on urchin-like mesoporous TiO2 hollow spheres as stable electrocatalysts for the oxygen reduction reaction

Nanoscale ◽  
2020 ◽  
Vol 12 (19) ◽  
pp. 10656-10663 ◽  
Author(s):  
Suqiong He ◽  
Chuxin Wu ◽  
Zhen Sun ◽  
Yang Liu ◽  
Rongtao Hu ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Hollow Spheres ◽  
Pt Nanoparticles ◽  
Reduction Reaction ◽  
Mesoporous Tio2 ◽  
Support Interaction ◽  
Metal Support Interaction ◽  
Metal Support ◽  
Tio2 Hollow Spheres

Pt/UMTHS exhibited better ORR stability than the commercial Pt/C due to the strong metal support interaction and the effect of spatial restriction from the unique structure.

scholarly journals Recent Advancements and Future Prospects of Noble Metal-Based Heterogeneous Nanocatalysts for Oxygen Reduction and Hydrogen Evolution Reactions

2020 ◽  
Vol 10 (21) ◽  
pp. 7708
Author(s):  
Dinesh Bhalothia ◽  
Lucky Krishnia ◽  
Shou-Shiun Yang ◽  
Che Yan ◽  
Wei-Hao Hsiung ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Hydrogen Evolution ◽  
Noble Metal ◽  
Reduction Reaction ◽  
Practical Applications ◽  
Storage Devices ◽  
Current State ◽  
Energy Conversion And Storage ◽  
Alternative Power ◽  
And Storage

The oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER) both are key electrochemical reactions for enabling next generation alternative-power supply technologies. Despite great merits, both of these reactions require robust electrocatalysts for lowering the overpotential and promoting their practical applications in energy conversion and storage devices. Although, noble metal-based catalysts (especially Pt-based catalysts) are at the forefront in boosting the ORR and HER kinetics, high cost, limited availability, and poor stability in harsh redox conditions make them unfit for scalable use. To this end, various strategies including downsizing the catalyst size, reducing the noble metal, and increasing metal utilization have been adopted to appropriately balance the performance and economic issues. This mini-review presents an overview of the current state of the technological advancements in noble metal-based heterogeneous nanocatalysts (NCs) for both ORR and HER applications. More specifically, we focused on establishing the structure–performance correlation.

Sign in / Sign up

Export Citation Format

Share Document