In Situ Deposition of Highly Dispersed Pt Nanoparticles on Carbon Black Electrode for Oxygen Reduction

2006 ◽  
Vol 153 (7) ◽  
pp. A1261 ◽  
Author(s):  
Yuyan Shao ◽  
Geping Yin ◽  
Jiajun Wang ◽  
Yunzhi Gao ◽  
Pengfei Shi
Keyword(s):  
Carbon Black ◽  
Oxygen Reduction ◽  
Pt Nanoparticles ◽  
In Situ Deposition ◽  
Highly Dispersed

In Situ Deposition of Pd during Oxygen Reduction Yields Highly Selective and Active Electrocatalysts for Direct H2O2 Production

ACS Catalysis ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 8453-8463 ◽  
Author(s):  
Yu Lei Wang ◽  
Sadi Gurses ◽  
Noah Felvey ◽  
Alexey Boubnov ◽  
Samuel S. Mao ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
H2o2 Production ◽  
In Situ Deposition

Carbon-Supported Spinel Nanoparticle MnCo2O4 as a Cathode Catalyst towards Oxygen Reduction Reaction in Dual-Chamber Microbial Fuel Cell

2015 ◽  
Vol 68 (6) ◽  
pp. 987 ◽  
Author(s):  
Dengping Hu ◽  
Guangyao Zhang ◽  
Juan Wang ◽  
Qin Zhong
Keyword(s):  
Carbon Black ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Coupling Effect ◽  
Reaction Pathway ◽  
Reduction Reaction ◽  
Cathode Catalyst ◽  
Dual Chamber

The poor kinetics of oxygen reduction reaction (ORR) in neutral media and ambient temperature limit the performance of microbial fuel cells (MFCs). So higher-performing, low-cost oxygen reduction catalysts play a key role in power output. Through direct nanoparticle nucleation and growth on carbon black, a nanocomposite of manganese cobaltite and carbon black (in situ-MnCo2O4/C) was synthesized via a facile hydrothermal method. Subsequently, the in situ-MnCo2O4/C samples were characterized. The results show that the MnCo2O4 nanoparticles with a crystalline spinel structure are well dispersed on carbon black. Electrochemical measurements reveal that in situ-MnCo2O4/C demonstrates excellent ORR catalytic activity, which may account for the synergetic coupling effect between MnCo2O4 and carbon black. The ORR on as-prepared in situ-MnCo2O4/C hybrid mainly favours a direct 4-electron reaction pathway in alkaline solution. Moreover, in situ-MnCo2O4/C was used as an alternative catalyst for ORR in dual-chamber MFC. The obtained maximum power density is 545 mW m–2, which is far higher than that of the plain cathode (Pmax = 214 mW m–2) and slightly lower than that of commercial Pt/C catalyst (Pmax = 689 mW m–2). This study implies that in situ-MnCo2O4/C nanocomposite is an efficient and cost-effective cathode catalyst for practical MFC application.

Very low amount of TiO2 on N-doped carbon nanotubes significantly improves oxygen reduction activity and stability of supported Pt nanoparticles

2015 ◽  
Vol 17 (16) ◽  
pp. 10767-10773 ◽  
Author(s):  
Anqi Zhao ◽  
Justus Masa ◽  
Wei Xia
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction ◽  
Pt Nanoparticles ◽  
Carbon Corrosion ◽  
Nitrogen Doped ◽  
Reduction Activity ◽  
Highly Dispersed ◽  
Corrosion Problem ◽  
Nitrogen Doped Carbon

Highly dispersed TiO2 on nitrogen-doped carbon nanotubes is used to tackle the carbon corrosion problem when used as support for Pt in electrocatalysis.

Anchoring ultrafine Pt nanoparticles on the 3D hierarchical self-assembly of graphene/functionalized carbon black as a highly efficient oxygen reduction catalyst for PEMFCs

2018 ◽  
Vol 6 (31) ◽  
pp. 15074-15082 ◽  
Author(s):  
Xuejun Tang ◽  
Yachao Zeng ◽  
Longsheng Cao ◽  
Limeng Yang ◽  
Zhiqiang Wang ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Carbon Black ◽  
Electrochemical Performance ◽  
Oxygen Reduction ◽  
Self Assembly ◽  
Pt Nanoparticles ◽  
Hierarchical Architecture ◽  
3D Graphene ◽  
Highly Efficient ◽  
Oxygen Reduction Catalyst

Ultrafine Pt nanoparticles decorated 3D graphene-based hierarchical architecture demonstrates superior electrochemical performance in fuel cell.

In situ diffraction of highly dispersed supported platinum nanoparticles

2014 ◽  
Vol 4 (9) ◽  
pp. 3053-3063 ◽  
Author(s):  
James R. Gallagher ◽  
Tao Li ◽  
Haiyan Zhao ◽  
Jingjing Liu ◽  
Yu Lei ◽  
...  
Keyword(s):  
Platinum Nanoparticles ◽  
Pt Nanoparticles ◽  
Synchrotron Diffraction ◽  
Supported Platinum ◽  
Highly Dispersed ◽  
In Situ Diffraction

In situ synchrotron diffraction in H2 reveals structural and microstructural details of supported 1–2 nm Pt nanoparticles.

scholarly journals Improved Electrocatalytic Activity and Durability of Pt Nanoparticles Supported on Boron-Doped Carbon Black

Catalysts ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 862
Author(s):  
Rui Yao ◽  
Jun Gu ◽  
Haitong He ◽  
Tao Yu
Keyword(s):  
Carbon Black ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Specific Activity ◽  
Pt Nanoparticles ◽  
Boron Doping ◽  
Reduction Reaction ◽  
Carbon Supports ◽  
Durability Test ◽  
Boron Doped

A facile strategy is proposed to synthesize boron-doped ECP600 carbon black (B-ECP600), and the catalyst of Pt supported on boron-doped ECP600 (Pt/B-ECP600) shows smaller particle sizes and a higher electrochemical surface area (95.62 m2·gPt−1) and oxygen reduction reaction activity (0.286 A·mgPt−1 for mass activity; 0.299 mA·cm−2 for area specific activity) compared to the catalyst of Pt supported on ECP600 (Pt/ECP600). The results show that the boron doping of the carbon supports plays an important role in controlling the size and dispersion of Pt nanoparticles and the O2 adsorption/dissociation of the oxygen reduction reaction. A further accelerated durability test proves that boron doping can greatly enhance the stability of carbon support and thus improves the electrochemical performance of the catalyst during the long-time running. All these results suggest boron-doped carbon has great potential for application in fuel cells.

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