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您的检索式：作者名="Esteban A.Franceschini"
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| 1 | One step synthesis of high efficiency nickel/mesoporous TiO_2 hybrid catalyst for hydrogen evolution reaction显示文摘Nickel-Ti O_2 hybrid catalysts are synthesized by electrodeposition and their catalytic activity with respect to the hydrogen evolution reaction is analyzed.Two types of titanium oxide particles,which are commercial particles of dense Ti O_2 and mesoporous TiO_2 particles synthesized by an aerosol method,are incorporated into the matrix of the nickel catalyst.Both nickel catalysts containing Ti O_2 particles presented higher catalytic activity than the conventional nickel Watts catalyst.Mesoporous TiO_2-modified nickel catalyst showed the highest catalytic activity towards HER in alkaline medium.In addition,this type of nickel catalyst increases its catalytic activity after ageing treatment,which is an indication of an increase in the electro-active area of the electrode. | Esteban A.Franceschini Melisa J.Gomez Gabriela I.Lacconi | 2019 | Journal of Energy Chemistry2019，28，2： | 1 |
| 2 | Hydrogen evolution kinetics on Ni cathodes modified by spontaneous deposition of Ag or Cu显示文摘Nickel modification by spontaneous deposition of transition metals such as Ag and Cu is shown as an economic and simple alternative for the activation of hydrogen evolution reaction(HER) on cathodes in alkaline media. The kinetics of HER is studied on Ni/Ag and Ni/Cu catalysts by cyclic voltammetry and electrochemical impedance spectroscopy(EIS) using a rotating disk electrode(RDE). Freshly synthesized catalysts, as well as catalysts subjected to a short chronoamperometric ageing procedure, are analyzed and the kinetic and thermodynamic parameters of the HER are obtained. The nickel surface modified with transition metals with an outer shell electronic configuration [xd^(10)(x+1)s^1], such as Cu(3d^(10)4s^1)and Ag(4d^(10)5s^1), shows an improved activity for the HER compared to bare nickel. Furthermore, the Ni/Cu catalyst presents a decreased onset potential. The hydrogen evolution rate, measured as current density at –1.5 V(vs. SCE), is similar on Ni/Cu and Ni/Ag electrodes. | Esteban A.Franceschini Gabriela I.Lacconi Horacio R.Corti | 2017 | Journal of Energy Chemistry2017，26，3： | 0 |
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