title: Boron doped graphene wrapped silver nanowires as an efficient electrocatalyst for molecular oxygen reduction.
abstract: Metal nanowires exhibit unusually high catalytic activity towards oxygen reduction reaction (ORR) due to their inherent electronic structures. However, controllable synthesis of stable nanowires still remains as a daunting challenge. Herein, we report the in situ synthesis of silver nanowires (AgNWs) over boron doped graphene sheets (BG) and demonstrated its efficient electrocatalytic activity towards ORR for the first time. The electrocatalytic ORR efficacy of BG-AgNW is studied using various voltammetric techniques. The BG wrapped AgNWs shows excellent ORR activity, with very high onset potential and current density and it followed four electron transfer mechanism with high methanol tolerance and stability towards ORR. The results are comparable to the commercially available 20% Pt/C in terms of performance.
authors.affiliation: International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, 686 560, Kerala, India.|Department of Physics, St Teresas's College Ernakulam, 682011, Kerala, India.
authors.forename: Anju K
authors.initials: AK
authors.lastname: Nair
authors.affiliation: CSIR- Central Electrochemical Research Institute (CSIR-CECRI), Karaikudi, 630 006, Tamilnadu, India.
authors.forename: Vineesh
authors.initials: V
authors.lastname: Thazhe Veettil
authors.affiliation: International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, 686 560, Kerala, India.|School of Pure and Applied Physics, Mahatma Gandhi University, Kottayam, 686 560, Kerala, India.
authors.forename: Nandakumar
authors.initials: N
authors.lastname: Kalarikkal
authors.affiliation: International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, 686 560, Kerala, India.|School of Chemical Sciences, Mahatma Gandhi University, Kottayam, 686 560, Kerala, India.
authors.forename: Sabu
authors.initials: S
authors.lastname: Thomas
authors.affiliation: Department of Physics, St Teresas's College Ernakulam, 682011, Kerala, India.
authors.forename: M S
authors.initials: MS
authors.lastname: Kala
authors.affiliation: Centre for Sustainable Materials Research and Technology (SMaRT), School of Materials Science and Engineering, University of New South Wales Sydney, NSW, Australia.
authors.forename: Veena
authors.initials: V
authors.lastname: Sahajwalla
authors.affiliation: Centre for Sustainable Materials Research and Technology (SMaRT), School of Materials Science and Engineering, University of New South Wales Sydney, NSW, Australia.
authors.forename: Rakesh K
authors.initials: RK
authors.lastname: Joshi
authors.affiliation: CSIR- Central Electrochemical Research Institute (CSIR-CECRI), Karaikudi, 630 006, Tamilnadu, India.
authors.forename: Subbiah
authors.initials: S
authors.lastname: Alwarappan