Iron-tetracyanobenzene complex derived non-precious catalyst for oxygen reduction reaction

Choi, Ja-Yeon; Higgins, Drew; Jiang, Gaopeng; Hsu, Ryan; Qiao, Jinli; Chen, Zhongwei

doi:10.1016/j.electacta.2014.11.118

Cited by 11 publications

(5 citation statements)

References 51 publications

(58 reference statements)

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“…Moreover Pt is highly susceptible to poisoning from a number of species including CH 4 , CO, MeOH, H 2 S, NO 2 , and SO 2 [8] and the Pt/C catalyst also suffers from degradation in the form of nanoparticle agglomeration, ripening and detachment from the support [9,10]. In recent years research has focused on replacing Pt with sustainable alternatives including non-precious metals such as Fe/C, Fe/C-N catalysts [11][12][13][14] and metalfree electrocatalysts based on heteroatom doped carbon materials. In the latter category nitrogen-doped carbon materials in particular have shown promise with N-doped carbon nanotubes [2,15,16], graphene [17][18][19][20], and mesoporous carbon [21] all reported in the literature.…”

Section: Introductionmentioning

confidence: 99%

Electrocatalysis of N-doped carbons in the oxygen reduction reaction as a function of pH: N-sites and scaffold effects

Behan

Iannaci

Domínguez

et al. 2019

Carbon

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Metal-free nitrogenated amorphous carbon electrodes were synthesised via dc plasma magnetron sputtering and post-deposition annealing at different temperatures. The electrocatalytic activity of the electrodes towards the oxygen reduction reaction (ORR) was studied as a function of pH using cyclic voltammetry with a rotating disk electrode. The trends in onset potential were correlated to the carbon nanostructure and chemical composition of the electrodes as determined via Raman spectroscopy and X-ray photoelectron spectroscopy analysis. Results suggest that: 1) the ORR activity in acidic conditions is strongly correlated to the concentration of pyridinic nitrogen sites. 2) At high pH, the presence of graphitic nitrogen sites and a graphitized carbon scaffold are the strongest predictors of high ORR onsets, while pyridinic nitrogen site density does not correlate to ORR activity. An inversion region where pyridine-mediated activity competes with graphitic-N mediated activity is identified in the pH region close to the value of pK a of the pyridinium cation. The onset of the ORR is therefore determined by the activity of different sites as a function of pH and evidence for distinct reduction reaction pathways emerges from these results.

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Section: Introductionmentioning

confidence: 99%

Electrocatalysis of N-doped carbons in the oxygen reduction reaction as a function of pH: N-sites and scaffold effects

Behan

Iannaci

Domínguez

et al. 2019

Carbon

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“…33 Choi et al prepared a thin film (< 10 nm) of Fe−Pc on carbon support as non-precious catalyst for oxygen reduction reaction. 34 Although the TM−Pc monolayer shows excellent catalytic activity in reactions such as CO oxidation and oxygen reduction, there have been no reports on the reduction of CO 2 . In this paper, the catalytic performance of TM−Pc monolayers for the first transition metal series on CRR was systematically studied using spin-polarized density functional theory (DFT).…”

Section: ■ Introductionmentioning

confidence: 99%

“…For example, Schlettwein et al fabricated the thin films of polymeric phthalocyanine sheets (Cu–Pc and Co–Pc) as electrocatalytic electrodes for water-oxidation . Choi et al prepared a thin film (< 10 nm) of Fe–Pc on carbon support as non-precious catalyst for oxygen reduction reaction …”

Section: Introductionmentioning

confidence: 99%

Efficient and Selective Electroreduction of CO₂ by Single-Atom Catalyst Two-Dimensional TM–Pc Monolayers

Liu

Yang

Ganz

2018

ACS Sustainable Chem. Eng.

137

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Electrochemical CO 2 reduction to value-added fuels and chemicals provides a "clean" and efficient way to mitigate energy shortages and to lower the global carbon footprint if one could find highly stable, efficient, selective, and low-cost electrocatalysts. However, this remains a huge challenge. In this work, the catalytic performance of transition metal−phthalocyanine (TM−Pc) monolayers as single-atom catalysts for the electroreduction of CO 2 was systematically investigated by spin-polarized density functional theory (DFT) calculations. Our results show that the bonding of single metal atoms with Pc can be large enough for the individual atoms to be uniformly dispersed and anchored in a modified 2D TM−Pc monolayer. Considering the competing hydrogen evolution reaction, TM−Pc has a good hydrogen evolution inhibition. The main CRR reduction products of Sc−Pc, Ti−Pc, V−Pc, and Fe−Pc monolayers are CH 4 . For Cr−Pc, Mn−Pc, and Zn−Pc monolayers, HCOOH is dominant, while for Co-Pc, HCHO is predicted. Except for the Sc−Pc, Ti−Pc, and V−Pc monolayers by (with too large overpotentials, exceeding 1 V), the reduction overpotential of other TM-Pc catalysts are in the range of 0.017−0.819 V, among them Mn−Pc has the lowest overpotential (0.017 V) and Fe−Pc has the highest overpotential (0.819 V). These were all lower than the overpotentials of well-studied copper which has the best catalytic performance. Therefore, our work may open up new avenues for the development of highly efficient catalytic materials for CO 2 reduction.

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“…As the energy efficiency and battery voltage of electrochemical cells are limited by the slow kinetics of the ORR [1,2], there is a great need for highly efficient catalysts for ORR. Various electrocatalysts for ORR have been developed, including but not limited to Pt-based catalysts [3][4][5], Pd-based catalysts [6,7], catalysts based on non-precious metals [8,9], catalysts based on carbon nanostructure/nanocomposites [10][11][12][13], catalysts based on metal oxides [14,15], catalysts based on metal-organic frameworks [16,17], catalysts based on complexes [18,19], enzyme-based catalysts [20][21][22][23][24], metal carbides [25][26][27][28], and so on. Among the catalysts for ORR, Pt-based catalysts are regarded as the most active catalysts [29].…”

Section: Introductionmentioning

confidence: 99%

Electrocatalytic Performance of Carbon Supported WO3-Containing Pd–W Nanoalloys for Oxygen Reduction Reaction in Alkaline Media

Cui

Guo

et al. 2018

Catalysts

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In this paper, we report that WO x containing nanoalloys exhibit stable electrocatalytic performance in alkaline media, though bulk WO 3 is easy to dissolve in NaOH solution. Carbon supported oxide-rich Pd-W alloy nanoparticles (PdW/C) with different Pd:W atom ratios were prepared by the reduction-oxidation method. Among the catalysts, the oxide-rich Pd 0.8 W 0.2 /C (Pd/W = 8:2, atom ratio) exhibits the highest catalytic activity for the oxygen reduction reaction. The X-ray photoelectron spectroscopy data shows that~40% of Pd atoms and~60% of the W atoms are in their oxide form. The Pd 3d 5/2 binding energy of the oxide-rich Pd-W nanoalloys is higher than that of Pd/C, indicating the electronic structure of Pd is affected by the strong interaction between Pd and W/WO 3. Compare to Pd/C, the onset potential of the oxygen reduction reaction at the oxide-rich Pd 0.8 W 0.2 /C shifts to a higher potential. The current density (mA•mg Pd −1) at the oxide-rich Pd 0.8 W 0.2 /C is~1.6 times of that at Pd/C. The oxide-rich Pd 0.8 W 0.2 /C also exhibits higher catalytic stability than Pd/C, which demonstrates that it is a prospective candidate for the cathode of fuel cells operating with alkaline electrolyte.

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Iron-tetracyanobenzene complex derived non-precious catalyst for oxygen reduction reaction

Cited by 11 publications

References 51 publications

Electrocatalysis of N-doped carbons in the oxygen reduction reaction as a function of pH: N-sites and scaffold effects

Electrocatalysis of N-doped carbons in the oxygen reduction reaction as a function of pH: N-sites and scaffold effects

Efficient and Selective Electroreduction of CO₂ by Single-Atom Catalyst Two-Dimensional TM–Pc Monolayers

Electrocatalytic Performance of Carbon Supported WO3-Containing Pd–W Nanoalloys for Oxygen Reduction Reaction in Alkaline Media

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Iron-tetracyanobenzene complex derived non-precious catalyst for oxygen reduction reaction

Cited by 11 publications

References 51 publications

Electrocatalysis of N-doped carbons in the oxygen reduction reaction as a function of pH: N-sites and scaffold effects

Electrocatalysis of N-doped carbons in the oxygen reduction reaction as a function of pH: N-sites and scaffold effects

Efficient and Selective Electroreduction of CO2 by Single-Atom Catalyst Two-Dimensional TM–Pc Monolayers

Electrocatalytic Performance of Carbon Supported WO3-Containing Pd–W Nanoalloys for Oxygen Reduction Reaction in Alkaline Media

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Efficient and Selective Electroreduction of CO₂ by Single-Atom Catalyst Two-Dimensional TM–Pc Monolayers