Synthesis of Mesoporous FeN/C Materials with High Catalytic Performance in the Oxygen Reduction Reaction

ChemCatChem ◽  
2015 ◽  
Vol 7 (18) ◽  
pp. 2937-2944 ◽  
Author(s):  
Shiping Wang ◽  
Minglei Zhu ◽  
Xiaobing Bao ◽  
Jing Wang ◽  
Chunhong Chen ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Catalytic Performance ◽  
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

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.

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

Hollow porous nanoparticles with Pt skin on a Ag–Pt alloy structure as a highly active electrocatalyst for the oxygen reduction reaction

2016 ◽  
Vol 4 (22) ◽  
pp. 8803-8811 ◽  
Author(s):  
Tao Fu ◽  
Jun Fang ◽  
Chunsheng Wang ◽  
Jinbao Zhao
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Bimetallic Nanoparticles ◽  
Pt Nanoparticles ◽  
Catalytic Performance ◽  
Reduction Reaction ◽  
Alloy Structure ◽  
Highly Active ◽  
Porous Nanoparticles ◽  
Pt Alloy

Novel hollow porous Ag–Pt bimetallic nanoparticles with better ORR catalytic performance than commercial Pt/C and Ag@Pt nanoparticles.

Pt3Fe nanoparticles triggered high catalytic performance for oxygen reduction reaction in both alkaline and acidic media

2021 ◽  
Author(s):  
Shuaihui Zhang ◽  
Kaiyue Jiang ◽  
Haitao Jiang ◽  
Jinhui Zhu ◽  
Huiping Ji ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Catalytic Performance ◽  
Reduction Reaction ◽  
Acidic Media

Systematic study of precursor effects on structure and oxygen reduction reaction activity of FeNC catalysts

2021 ◽  
Vol 379 (2209) ◽  
pp. 20200337
Author(s):  
Pascal Theis ◽  
W. David Z. Wallace ◽  
Lingmei Ni ◽  
Markus Kübler ◽  
Annika Schlander ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Catalytic Performance ◽  
Reduction Reaction ◽  
Large Area ◽  
Constant Weight ◽  
Structural Composition ◽  
The Impact ◽  
Template Size ◽  
Weight Loading

In this work, the effect of porphyrin loading and template size is varied systematically to study its impact on the oxygen reduction reaction (ORR) activity and selectivity as followed by rotating ring disc electrode experiments in both acidic and alkaline electrolytes. The structural composition and morphology are investigated by 57 Fe Mössbauer spectroscopy, transmission electron microscopy, Raman spectroscopy and Brunauer–Emmett–Teller analysis. It is shown that with decreasing template size, specifically the ORR performance towards fuel cell application gets improved, while at constant area loading of the iron precursor (here expressed in number of porphyrin layers), the iron signature does not change much. Moreover, it is well illustrated that too large area loadings result in the formation of undesired side phases that also cause a decrease in the performance, specifically in acidic electrolyte. Thus, if the impact of morphology is the focus of research it is important to consider the area loading rather than its weight loading. At constant weight loading, beside morphology the structural composition can also change and impact the catalytic performance. This article is part of the theme issue ‘Bio-derived and bioinspired sustainable advanced materials for emerging technologies (part 2)’.

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