Abstract
Direct methanol fuel cells are promising electrochemical energy conversion devices. But, more efficient and stable and less expensive catalysts are still required. Here, we successfully synthesized Pt/C and Pt0.5–Ir0.5/C, Pt0.6–Ir0.4/C, Pt0.7–Ir0.3/C, and Pt0.8–Ir0.2/C nanowires by the chemical reduction of the metallic precursors by formic acid and tested them towards methanol electro-oxidation in acidic media. Neither surfactants nor templates were used during the syntheses. The nanowires catalysts were compared with a commercial state-of-art catalyst aiming the observation of the properties improvements derived from both alloying Pt with Ir and morphology change from nanoparticles to nanowires. Well-defined and slightly agglomerated over the carbon nanowires (diameters and lengths of approximately 5 and 20 nm, respectively) were obtained, the fact that is ascribed to the 40 wt% metal loading. In addition, accelerated degradation tests showed that Pt0.6–Ir0.4/C, Pt0.7–Ir0.3/C and Pt0.8–Ir0.2/C catalysts are more stable than commercial Pt/C. All synthesized nanowires catalysts were more active towards methanol electro-oxidation than the commercial Pt/C. The Pt0.5–Ir0.5/C sample shows Pt mass activities 7 times that of commercial Pt/C. However, the Pt0.8–Ir0.2/C catalyst presented the best specific activity (6 times that of commercial Pt/C), have the highest currents in the derivative voltammetry and the oxidation potential shifts negatively 100 mV in comparison with the commercial Pt/C catalyst. Hence, the nanowires developed in this study are indicated as potential promising catalysts and can be applied successfully as direct methanol fuel cell anodes.
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Andújar JM, Segura F (2009) Renew Sustain Energy Rev 13:2309–2322
Alcaide F, Cabot PL, Brillas E (2006) J Power Sources 153:47–60
Hamnett A (1997) Catal Today 38:445–457
Yi Q, Chen A, Huang W, Zhang J, Liu X, Xu G, Zhou Z (2007) Electrochem Commun 9:1513–1518
Bresciani F, Rabissi C, Zago M, Gazdzicki P, Schulze M, Guétaz L, Escribano S, Bonde JL, Marchesi R, Casalegno A (2016) J Power Sources 306:49–61
Gong L, Yang Z, Li K, Ge J, Liu C, Xing W (2018) J Energy Chem 27:1618–1628
El Sawy EN, Molero HM, Birss VI (2014) Electrochim Acta 117:202–210
Demirci UB (2007) J Power Sources 173:11–18
Tian ZQ, Jiang SP, Liu Z, Li L (2007) Electrochem Commun 9:1613–1618
Davies JC, Bonde J, Logadóttir Á, Nørskov JK, Chorkendorff I (2005) Fuel Cells 5:429–435
Zhou W-P, Li M, Koenigsmann C, Ma C, Wong SS, Adzic RR (2011) Electrochim Acta 56:9824–9830
Karan HI, Sasaki K, Kuttiyiel K, Farberow CA, Mavrikakis M, Adzic RR (2012) ACS Catal 2:817–824
Formo E, Peng Z, Lee E, Lu X, Yang H, Xia Y (2008) J Phys Chem C 112:9970–9975
Freitas RG, Antunes EP, Pereira EC (2009) Electrochim Acta 54:1999–2003
Assumpcão MHMT, Silva SG, Souza RFB, Buzzo GS, Spinacé EV, Neto AO, Silva JCM (2014) J Hydrog Energy 39:5148–5152
Toledo-Antonio JA, Ángeles-Chávez C, Cortés-Jácome MA, Cuauhtémoc-López I, López-Salinas E, Pérez-Luna M, Torres-Ferrat G (2012) Appl Catal A 437–438:155–156
Taylor AK, Perez DS, Zhang X, Pilapil K, Engelhard MH, Gates BD, Rider DA (2017) J Mater Chem A 5:21514–21527
Sun S, Zhang G, Geng D, Chen Y, Li R, Cai M, Sun X (2011) Angew Chem Int Ed 50:422–426
Wang S, Jiang SP, Wang X, Guo J (2011) Electrochim Acta 56:1563–1569
López-Suárez FE, Perez-Cadenas M, Bueno-López A, Carvalho-Filho CT, Eguiluz KIB, Salazar-Banda GR (2015) J Appl Electrochem 45:1057–1068
Valério Neto ES, Gomes MA, Salazar-Banda GR, Eguiluz KIB (2018) Int J Hydrog Energy 43:178–188
Silva LSR, López-Suárez FE, Perez-Cadenas M, Santos SF, da Costa LP, Eguiluz KIB, Salazar-Banda GR (2016) Appl Catal B 198:38–48
Almeida GRO, Sussuchi EM, de Meneses CT, Salazar-Banda GR, Eguiluz KIB (2017) Int J Electrochem Sci 12:7502–7517
Calderón JC, García G, Calvillo L, Rodríguez JL, Lázaro MJ, Pastor E (2015) Appl Catal B 165:676–686
Montero MA, Fernández JL, de Chialvo MRG, Chialvo AC (2013) J Phys Chem C 117:20575–25269
Da Silva FRP, Silva-Junior LC, Camara GA, Giz MJ (2019) J Braz Chem Soc, in press
Puthiyapura VK, Mamlouk M, Pasupathi S, Pollet BG, Scott K (2014) J Power Sources 269:451–460
Wang R, Wei B, Wang H, Ji S, Key J, Zhang X, Lei Z (2011) Ionics 17:595–601
Zhang Z, Li M, Wu Z, Li W (2011) Nanotechnology 22:015602
Gasteiger HA, Markovic N, Ross PN Jr, Cairns EJ (1994) J Phys Chem 98:617–625
Han Y, Ouyang Y, Xie Z, Chen J, Chang F, Yu G (2016) J Mater Sci Technol 32:639–645
Silva CD, Morais LH, Gonçalves R, Matos R, Souza GLC, Freitas RG, Pereira EC (2018) Electrochim Acta 280:197–205
Sun S, Zhang G, Geng D, Chen Y, Banis MN, Li R, Cai M, Sun X (2010) Chem A 16:829–835
Mahmoud MA, Tabor CE, El-Sayed MA, Ding Y, Wang ZL (2008) J Am Chem Soc 130:4590–4591
Thilaga S, Durga S, Selvarani V, Kiruthika S, Muthukumaran B (2018) Ionics 24:1721–1731
Antoniassi RM, Silva JCM, Lopes T, Oliveira Neto A, Spinacé EV (2017) Int J Hydrogen Energy 42:28786–28796
Maillard F, Eikerling M, Cherstiouk OV, Schreier S, Savinova E, Stimming U (2004) Faraday Discuss 125:357–377
Ciapina EG, Santos SF, Gonzalez ER (2018) J Electroanal Chem 815:47–60
Sun S, Jaouen F, Dodelet J-P (2008) Adv Mater 20:3900–3904
El Sawy EN, Birss VI (2017) J Electrochem Soc 164:F1572–F1579
Holt-Hindle P, Yi Q, Wu G, Koczkur K, Chen A (2008) J Electrochem Soc 155:K5–K9
Salazar-Banda GR, Suffredini HB, Calegaro ML, Tanimoto ST, Avaca LA (2006) J Power Sources 162:9–20
Velázquez-Palenzuela A, Centellas F, Garrido JA, Arias C, Rodríguez RM, Brillas E, Cabot P-L (2011) J Power Sources 196:3503–3512
Christensen PA, Hammett A, Troughton GL (1993) J Electroanal Chem 362:207–2018
Gojkovic S Lj, Vidakovic TR (2000) Electrochim Acta 47:633–642
Tapan NA, Prakash J (2005) Turkish J Eng Environ Sci 29:95–103
Eguiluz KIB, Salazar-Banda GR, Miwa D, Machado SAS, Avaca LA (2008) J Power Sources 179:42–49
Murthy A, Manthiram A (2012) J Phys Chem C 116:3827–3832
Ruiz-Camacho B, Santoyo HHR, Medina-Flores JM, Álvarez-Martínez O (2014) Electrochim Acta 120:344–349
Kua J, Goddard WA (1999) J Am Chem Soc 121:10928–10941
Iwasita T (2002) Electrochim Acta 47:3663–3674
Batista EA, Malpass GRP, Motheo AJ, Iwasita T (2004) J Electroanal Chem 571:273–282
Lee K-S, Park I-S, Cho Y-H, Jung D-S, Jung N, Park H-Y, Sung Y-E (2008) J Catal 258:143–152
Chung DY, Lee KJ, Sung YE (2016) J Phys Chem C 120:9028–9035
Acknowledgments
The authors would like to thank the CNPq (Grant Nos. 407274/2013-8, 400443/2013-9, 474261/2013-1, 304419/2015-0, and 310282/2013-6), to the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES (Grant: 001), to FAPITEC/SE from Brazil, for financial support and scholarships. Moreover, we thank Profs. Ronaldo Santos Silva and Euler Araújo dos Santos from the Federal University of Sergipe and to Haoliang Huang from the University of Southampton.
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Ribeiro, J.Y.C., Valério Neto, E.S., Salazar-Banda, G.R. et al. Carbon-Supported Pt and Pt–Ir Nanowires for Methanol Electro-Oxidation in Acidic Media. Catal Lett 149, 2614–2626 (2019). https://doi.org/10.1007/s10562-019-02839-y
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DOI: https://doi.org/10.1007/s10562-019-02839-y