Lattice-strained palladium nanoparticles as active catalysts for the oxygen reduction reaction

2019 ◽  
Vol 55 (21) ◽  
pp. 3121-3123 ◽  
Author(s):  
Jing-Yang Lin ◽  
Cong Xi ◽  
Zhe Li ◽  
Yi Feng ◽  
De-Yao Wu ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Palladium Nanoparticles ◽  
Compressive Strain ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Catalytic Performance ◽  
Reduction Reaction ◽  
Dramatic Improvement

Compressive strain was successfully introduced into palladium nanoparticles by a novel pulsed laser ablation technology, leading to dramatic improvement of the catalytic performance in the oxygen reduction reaction.

scholarly journals Enhanced Electrocatalytic Activity and Stability toward the Oxygen Reduction Reaction with Unprotected Pt Nanoclusters

Nanomaterials ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 955 ◽  
Author(s):  
Jing Liu ◽  
Jiao Yin ◽  
Bo Feng ◽  
Tao Xu ◽  
Fu Wang
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Specific Activity ◽  
Catalytic Performance ◽  
Reduction Reaction ◽  
Top Down ◽  
Methanol Tolerance ◽  
Pt Nanoclusters ◽  
Mass Activity

The Pt particles within diameters of 1–3 nm known as Pt nanoclusters (NCs) are widely considered to be satisfactory oxygen reduction reaction (ORR) catalysts due to higher electrocatalytic performance and cost effectiveness. However, the utilization of such smaller Pt NCs is always limited by the synthesis strategies, stability and methanol tolerance of Pt. Herein, unprotected Pt NCs (~2.2 nm) dispersed on carbon nanotubes (CNTs) were prepared via a modified top-down approach using liquid Li as a solvent to break down the bulk Pt. Compared with the commercial Pt/C, the resultant Pt NCs/CNTs catalyst (Pt loading: 10 wt.%) exhibited more desirable ORR catalytic performance in 0.1 M HClO4. The specific activity (SA) and mass activity (MA) at 0.9 V for ORR over Pt NCs/CNTs were 2.5 and 3.2 times higher than those over the commercial Pt/C (Pt loading: 20 wt.%). Meanwhile, the Pt NCs/CNTs catalyst demonstrated more satisfactory stability and methanol tolerance. Compared with the obvious loss (~69%) of commercial Pt/C, only a slight current decrease (~10%) was observed for Pt NCs/CNTs after the chronoamperometric measurement for 2 × 104 s. Hence, the as-prepared Pt NCs/CNTs material displays great potential as a practical ORR catalyst.

Enhanced Catalytic Performance of Pt-Free Iron Phthalocyanine by Graphene Support for Efficient Oxygen Reduction Reaction

ACS Catalysis ◽  
2013 ◽  
Vol 3 (6) ◽  
pp. 1263-1271 ◽  
Author(s):  
Yuanyuan Jiang ◽  
Yizhong Lu ◽  
Xiangyu Lv ◽  
Dongxue Han ◽  
Qixian Zhang ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Catalytic Performance ◽  
Reduction Reaction ◽  
Iron Phthalocyanine ◽  
Free Iron

Oxygen Reduction Reaction over PtFeM (M = Mo, V, W) Alloy Electrocatalysts: Role of the Compressive Strain Effect on Pt

2019 ◽  
Vol 7 (19) ◽  
pp. 16209-16214 ◽  
Author(s):  
Jiajia Lu ◽  
Lin Luo ◽  
Shibin Yin ◽  
Syed Waqar Hasan ◽  
Panagiotis Tsiakaras
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Compressive Strain ◽  
Reduction Reaction ◽  
Strain Effect

scholarly journals Cage-confinement of gas-phase ferrocene in zeolitic imidazolate frameworks to synthesize high-loading and atomically dispersed Fe–N codoped carbon for efficient oxygen reduction reaction

2019 ◽  
Vol 7 (27) ◽  
pp. 16508-16515 ◽  
Author(s):  
Guanying Ye ◽  
Qian He ◽  
Suqin Liu ◽  
Kuangmin Zhao ◽  
Yuke Su ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Nitrogen Content ◽  
Oxygen Reduction ◽  
Gas Phase ◽  
Catalytic Performance ◽  
Reduction Reaction ◽  
Iron Loading ◽  
Zeolitic Imidazolate Frameworks ◽  
High Iron ◽  
Excellent Catalytic Performance

Atomically dispersed iron doped-MOF-derived carbon with high iron loading and nitrogen content for the oxygen reduction reaction via a cage-confinement strategy shows excellent catalytic performance.

Synthesis and properties of palladium nanoparticles by pulsed laser ablation in liquid

2015 ◽  
Vol 348 ◽  
pp. 45-53 ◽  
Author(s):  
M.I. Mendivil ◽  
B. Krishnan ◽  
G.A. Castillo ◽  
S. Shaji
Keyword(s):  
Laser Ablation ◽  
Palladium Nanoparticles ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Laser Ablation In Liquid

Catalytic performance and mechanism of N-CoTi@CoTiO 3 catalysts for oxygen reduction reaction

Nano Energy ◽  
2016 ◽  
Vol 20 ◽  
pp. 134-143 ◽  
Author(s):  
Li An ◽  
Huijun Yan ◽  
Xin Chen ◽  
Biao Li ◽  
Zhonghong Xia ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Catalytic Performance ◽  
Reduction Reaction ◽  
Performance And Mechanism

Kinetic Study of Oxygen Reduction Reaction on Palladium Nanoparticles Supported in Thermally Treated Carbon

2011 ◽  
Vol 14 (2) ◽  
pp. 69-73 ◽  
Author(s):  
R. Gonzalez Huerta ◽  
P. Gonzalez Puente ◽  
O. Solorza Feria
Keyword(s):  
Oxygen Reduction Reaction ◽  
Kinetic Study ◽  
Oxygen Reduction ◽  
Palladium Nanoparticles ◽  
Rotating Disk ◽  
Reduction Reaction ◽  
Rotating Disk Electrode ◽  
Disk Electrode ◽  
Treated Carbon ◽  
Thermally Treated

The kinetic study of oxygen reduction reaction (ORR) using palladium nanoparticles supported in thermally-treated Vulcan® carbon as an electrocatalyst was developed in a 0.5 M H2SO4 solution. The Vulcan® carbon was thermally treated at 400oC and 600°C. The Pd supported in thermally treated carbon (Pd/TTC) was synthesized by PdCl2 reduction with NaBH4 in water at 60°C. The thermally treated carbon (TTC) was evaluated by Raman spectroscopy, whereas the morphology of Pd/TTC was characterized by Scanning Electron Microscopy (SEM). The electrochemical activity was studied by rotating disk electrode (RDE) and rotating ring-disk electrode (RRDE) techniques. The RDE result showed a high activity of the Pd/TTC towards the ORR, this reaction proceeds preferentially via a 4e- pathway. On the other hand, the hydrogen peroxide productions were 4.6% and 6.6% for Pd/(TTC at 400°C) and 600°C, respectively.

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