Microfluidic Synthesis and Electrochemical Performance of Ternary Metals Nanoalloy: FePtSn

Abstract:

The ternary FePtSn alloy nanoparticles (NPs) were synthesized via a simple programmed microfluidic process, showing a great electrochemical performance in methanol oxidation reaction (MOR). The synthesis process exhibited convenient and spatial-temporal kinetics control of the NPs formation for a narrow size distribution, ultra-small (~2nm) and good dispersion features. The morphology, crystal structure and composition of FePtSn NPs were characterized by transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDS), powder X-ray diffraction (XRD). FePtSn/C nanocatalyst ink could be further prepared by mixing the as-synthesized or annealed FePtSn NPs with carbon black powder and nafion. Their electrocatalytic performances were tested by the electrochemical work station. By contrast, the annealing treatment made more active sites exposed and facilitated the catalytic performance of FePtSn/C NPs. The electrochemical active surface areas (ECSAs, 42.8m²/g), catalytic activity (I_f: 588.1 mA/mg-Pt) and electrochemical durability of FePtSn/C nanocatalysts after annealing were greatly improved, comparing with as-synthesized samples and commercial Pt/C nanocatalysts for MOR. In addition, the onset potential of annealed FePtSn/C nanocatalysts was improved, much better than the commercial Pt/C nanocatalysts.

• Periodical: Materials Science Forum (Volume 913)
• Pages: 831-837
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.913.831
• Online since: February 2018
• Authors: Ju Gang Ma, Jun Mei Wang, Shuai Li, Yu Jun Song*
• Keywords: Annealing, Catalytic, FePtSn, Methanol Oxidation Reaction, Microfluidic

References

[1] J. N. Tiwari, R. N. Tiwari, G. Singh and K. S. Kim, Recent progress in the development of anode and cathode catalysts for direct methanol fuel cells, Nano Energy, 2 (2013) 553-578.

DOI: 10.1016/j.nanoen.2013.06.009

[2] A. S. Arico, S. Srinivasan and V. Antonucci, DMFCs: From Fundamental Aspects to Technology Development, Fuel Cells, 1 (2001) 133-161.

DOI: 10.1002/1615-6854(200107)1:2<133::aid-fuce133>3.0.co;2-5

[3] W. Z. Li, C. H. Liang, W. J. Zhou, J. S. Qiu, Z. H. Zhou, G. Q. Sun and Q. Xin, Preparation and characterization of multiwalled carbon nanotube-supported platinum for cathode catalysts of direct methanol fuel cells, Journal of Physical Chemistry B, 107 (2003).

DOI: 10.1021/jp022505c

[4] H. Liu, C. Song, L. Zhang, J. Zhang, H. Wang and D. P. Wilkinson, A review of anode catalysis in the direct methanol fuel cell, Journal of Power Sources, 155 (2006) 95-110.

DOI: 10.1016/j.jpowsour.2006.01.030

[5] C. Sealy, The problem with platinum, Materials Today, 11 (2008) 65-68.

[6] L. Lin, Q. Zhu and A. W. Xu, Anode Catalysts and Cathode Catalysts of Direct Methanol Fuel Cells, Progress in Chemistry, 27 (2015) 1147-1157.

[7] A. Serov and C. Kwak, Review of non-platinum anode catalysts for DMFC and PEMFC application, Applied Catalysis B: Environmental, 90 (2009) 313-320.

DOI: 10.1016/j.apcatb.2009.03.030

[8] J. Zhang, S. Tang, L. Liao and W. Yu, Progress in non-platinum catalysts with applications in low temperature fuel cells, Chinese Journal of Catalysis, 34 (2013) 1051-1065.

DOI: 10.1016/s1872-2067(12)60588-9

[9] X. Zhao, M. Yin, L. Ma, L. Liang, C. Liu, J. Liao, T. Lu and W. Xing, Recent advances in catalysts for direct methanol fuel cells, Energy & Environmental Science, 4 (2011) 2736.

DOI: 10.1039/c1ee01307f

[10] K. Sasaki and R. R. Adzic, Monolayer-Level Ru- and NbO[sub 2]-Supported Platinum Electrocatalysts for Methanol Oxidation, Journal of The Electrochemical Society, 155 (2008) B180.

DOI: 10.1149/1.2816238

[11] Q. Zhao, G. Zhang, G. Xu, Y. Li, B. Liu, X. Gong, D. Zheng, J. Zhang and Q. Wang, Synthesis of highly active and dual-functional electrocatalysts for methanol oxidation and oxygen reduction reactions, Applied Surface Science, 389 (2016) 181-189.

DOI: 10.1016/j.apsusc.2016.07.097

[12] S. Sen Gupta, S. Singh and J. Datta, Temperature effect on the electrode kinetics of ethanol electro-oxidation on Sn modified Pt catalyst through voltammetry and impedance spectroscopy, Materials Chemistry and Physics, 120 (2010) 682-690.

DOI: 10.1016/j.matchemphys.2009.12.023

[13] K. Taniya, H. Jinno, M. Kishida, Y. Ichihashi and S. Nishiyama, Preparation of Sn-modified silica-coated Pt catalysts: A new Pt-Sn bimetallic model catalyst for selective hydrogenation of crotonaldehyde, Journal of Catalysis, 288 (2012) 84-91.

DOI: 10.1016/j.jcat.2012.01.006

[14] J. Wang, Z. Wang, S. Li, R. Wang and Y. Song, Surface and interface engineering of FePt/C nanocatalysts for electro-catalytic methanol oxidation: enhanced activity and durability, Nanoscale (2017).

DOI: 10.1039/c6nr09122a

[15] V. Mazumder, M. Chi, K. L. More and S. Sun, Core/Shell Pd/FePt Nanoparticles as an Active and Durable Catalyst for the Oxygen Reduction Reaction, Journal of the American Chemical Society, 132 (2010) 7848-7849.

DOI: 10.1021/ja1024436

[16] S. Guo, S. Zhang, D. Su and S. Sun, Seed-mediated synthesis of core/shell FePtM/FePt (M = Pd, Au) nanowires and their electrocatalysis for oxygen reduction reaction, J Am Chem Soc, 135 (2013) 13879-84.

DOI: 10.1021/ja406091p

[17] D.-S. Yang, K.-S. Sim, H.-D. Kwen and S.-H. Choi, One-step preparation of Pt–M@FP-MWNT catalysts (M=Ru, Ni, Co, Sn, and Au) by γ-ray irradiation and their catalytic efficiency for CO and MeOH, Journal of Industrial and Engineering Chemistry, 18 (2012).

DOI: 10.1016/j.jiec.2011.11.059

[18] Y. Song, J. Hormes and C. S. Kumar, Microfluidic synthesis of nanomaterials, Small, 4 (2008) 698-711.

DOI: 10.1002/smll.200701029

[19] J. Wang, K. Zhao, X. Shen, W. Zhang, S. Ji, Y. Song, X. Zhang, R. Rong and X. Wang, Microfluidic synthesis of ultra-small magnetic nanohybrids for enhanced magnetic resonance imaging, J. Mater. Chem. C, 3 (2015) 12418-12429.

DOI: 10.1039/c5tc02279g

[20] J. Ma, J. Wang, X. Zhong, G. LI and Y. Song, Synthesis of Sn(1−x)Fex@FeySn(1−y) Oznanohybrids via a simple programmed microfluidic process, RSC Adv., 6 (2016) 84255-84261.

DOI: 10.1039/c6ra17768a

[21] T. S. Almeida, A. R. Van Wassen, R. B. Vandover, A. R. De Andrade and H. D. Abru A, Combinatorial PtSnM (M = Fe, Ni, Ru and Pd) nanoparticle catalyst library toward ethanol electrooxidation, Journal of Power Sources, 284 (2015) 623-630.

DOI: 10.1016/j.jpowsour.2015.03.055

[22] J. G. Speight, Lange's handbook of chemistry, McGraw-Hill New York, (2005).

[23] K. L. Pickrahn, S. W. Park, Y. Gorlin, H.-B.-R. Lee, T. F. Jaramillo and S. F. Bent, Active MnOxElectrocatalysts Prepared by Atomic Layer Deposition for Oxygen Evolution and Oxygen Reduction Reactions, Advanced Energy Materials, 2 (2012).

DOI: 10.1002/aenm.201200230

[24] L. Lai, J. R. Potts, D. Zhan, L. Wang, C. K. Poh, C. Tang, H. Gong, Z. Shen, J. Lin and R. S. Ruoff, Exploration of the active center structure of nitrogen-doped graphene-based catalysts for oxygen reduction reaction, Energy & Environmental Science, 5 (2012).

DOI: 10.1039/c2ee21802j

[25] J. Liu, K. Elkins, V. H. LI, N. Nandwana, Z. Poudyal and Q. Jin, Phase Transformation of FePt Nanoparticles, IEEE Transactions on Magnetics, 42 (2006), 559-559.

DOI: 10.1109/intmag.2006.376283

[26] V. R. Stamenkovic, B. S. Mun, K. J. J. Mayrhofer, P. N. Ross and N. M. Markovic, Effect of surface composition on electronic structure, stability, and electrocatalytic properties of Pt-transition metal alloys : Pt-skin versus Pt-skeleton surfaces, Journal of the American Chemical Society, 128 (2006).

DOI: 10.1021/ja0600476