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3 results on '"I. L. Alonso-Lemus"'

1. Enhanced Performance of Sn@Pt Core-Shell Nanocatalysts Supported on Two Different Carbon Structures for the Hydrogen Oxidation Reaction in Acid Media

Author

F. J. Rodríguez-Varela, G. Hernández-Vázquez, S. Dessources, B. Escobar-Morales, Aruna K. Kunhiraman, M. A. Garcia-Lobato, and I. L. Alonso-Lemus

Subjects
Chemistry, QD1-999
Abstract

Sn@Pt core-shell nanocatalysts, supported on Vulcan XC-72 and home-developed nitrogen-doped graphene (Sn@Pt/C and Sn@Pt/NG, respectively), were evaluated for the hydrogen oxidation reaction (HOR) in acid electrolyte. The nanocatalysts were synthesized by the bromide anion exchange (BAE) method. TEM characterization confirmed the nanosize nature of Sn@Pt/C and Sn@Pt/NG, with an average particle size of 2.1 and 2.3 nm, respectively. Sn@Pt/C delivered a similar mass limiting current density (jl, m) of the HOR compared to Sn@Pt/NG, which was higher than those of Pt/C and Pt/NG (ca. 2 and 2.3-fold increase, respectively). Moreover, the Sn@Pt/C and Sn@Pt/NG core-shell nanocatalysts demonstrated a higher specific activity related to Pt/C and Pt/NG. Mass and specific Tafel slopes further demonstrated the improved catalytic activity of Sn@Pt/C for the HOR, followed by Sn@Pt/NG. The application of the nanocatalysts was proposed for polymer electrolyte membrane fuel cells (PEMFC).

Published
2022
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3. Noble Metal-Free Electrocatalysts: Fundamentals and Recent Advances in Electrocatalysts for Energy Applications. Volume 1

Author

Ram K. Gupta, Tenzin Ingsel, Felipe M. de Souza, Anuja A. Yadav, Yuvaraj M. Hunge, Seok-Won Kang, Shailendra K. Jha, Niki S. Jha, Subramanian Mohanapriya, Prabhakaran Dhanasekaran, Sivasuriyanarayanan Vinod Selvaganesh, Yuepeng Liu, Zhongfang Li, Lei Zhang, Peng Sun, Shuaifeng Wang, Changhui Ji, Wenjie Duan, Likai Wang, Xueliang Niu, M. O. Torres-Fuentez, Y. M. Maldonado, I. L. Alonso-Lemus, F. J Rodríguez-Varela, Yasemin Aykut, Ayşe Bayrakçeken Yurtcan, Yuhua Xie, Shuyuan Pan, Fang Luo, Zehui Yang, Manigandan Ramadoss, Manzoor Ahmad Pandit, Yuanfu Chen, Marimuthu Karpuraranjith, Muralidharan Krishnamurthi, Tayyaba Najam, Syed Shoaib Ahmad Shah, Muhammad Sohail Bashir, Aziz ur Rehman, Ram K. Gupta, Tenzin Ingsel, Felipe M. de Souza, Anuja A. Yadav, Yuvaraj M. Hunge, Seok-Won Kang, Shailendra K. Jha, Niki S. Jha, Subramanian Mohanapriya, Prabhakaran Dhanasekaran, Sivasuriyanarayanan Vinod Selvaganesh, Yuepeng Liu, Zhongfang Li, Lei Zhang, Peng Sun, Shuaifeng Wang, Changhui Ji, Wenjie Duan, Likai Wang, Xueliang Niu, M. O. Torres-Fuentez, Y. M. Maldonado, I. L. Alonso-Lemus, F. J Rodríguez-Varela, Yasemin Aykut, Ayşe Bayrakçeken Yurtcan, Yuhua Xie, Shuyuan Pan, Fang Luo, Zehui Yang, Manigandan Ramadoss, Manzoor Ahmad Pandit, Yuanfu Chen, Marimuthu Karpuraranjith, Muralidharan Krishnamurthi, Tayyaba Najam, Syed Shoaib Ahmad Shah, Muhammad Sohail Bashir, and Aziz ur Rehman

Subjects
Electric batteries--Materials, Electrochemistry, Electrocatalysis, Nonmetals
Published
2022

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