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المؤلفYousaf, Ammar Bin
المؤلفImran, Muhammad
المؤلفFarooq, Muhammad
المؤلفKasak, Peter
تاريخ الإتاحة2023-04-05T08:02:59Z
تاريخ النشر2018
اسم المنشورRSC Advances
المعرّفhttp://dx.doi.org/10.1039/c7ra12692a
الاقتباسYousaf, A. B., Imran, M., Farooq, M., & Kasak, P. (2018). Synergistic effect of Co–Ni co-bridging with MoS 2 nanosheets for enhanced electrocatalytic hydrogen evolution reactions. RSC advances, 8(7), 3374-3380.
الرقم المعياري الدولي للكتاب2046-2069
معرّف المصادر الموحدhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85041102000&origin=inward
معرّف المصادر الموحدhttp://hdl.handle.net/10576/41677
الملخصThe depletion of fossil fuels and associated environmental problems have drawn our attention to renewable energy resources in order to meet the global energy demand. Electrocatalytic hydrogen evolution has been considered a potential energy solution due of its high energy density and environment friendly technology. Herein, we have successfully synthesized a noble-metal-free Co-Ni/MoS2 nanocomposite for enhanced electrocatalytic hydrogen evolution. The nanocomposite has been well characterized using HRTEM, elemental mapping, XRD, and XPS analysis. The as-synthesized nanocomposite exhibits a much smaller onset potential and better current density than those of Co-MoS2, Ni-MoS2 and MoS2, with a Tafel value of 49 mV dec-1, which is comparable to that of a commercial Pt/C catalyst. The synergistic effect and interfacial interaction of Co-Ni bimetallic nanoparticles enhances the intrinsic modulation in the electronic structure resulting in an improved HER performance. Moreover, the electrochemical impedance spectroscopic results suggest smaller resistance values for the Co-Ni/MoS2 nanocomposite, compared to those for the charge transfer of bare nanosheets, which increase the faradaic process and in turn enhance the HER kinetics for a better performance. Our as-synthesized Co-Ni/MoS2 nanocomposite holds great potential for the future synthesis of noble-metal-free catalysts.
راعي المشروع- Qatar National Research Fund (A Member of The Qatar Foundation) NPRP grant #9-219-2-105. - CAS-TWAS Presidents Fellowship Programme. - USTC and Anhui Government Scholarship programmes.
اللغةen
الناشرRoyal Society of Chemistry
الموضوعnano surface
electrocatalytic
Electrochemical
العنوانSynergistic effect of Co-Ni co-bridging with MoS2nanosheets for enhanced electrocatalytic hydrogen evolution reactions
النوعArticle
الصفحات3374-3380
رقم العدد7
رقم المجلد8
dc.accessType Open Access


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