ĭehcheshmeh MM, Shervedani RK, Torabi M (2019) Construction of nanoporous carbon, derived from pyrolysis of nickel metal organic framework, and application for HER in alkaline and acidic solutions. Zhong X, Qin Y, Chen X, Xu W, Zhuang G, Li X, Wang J (2016) PtPd alloy embedded in nitrogen-rich graphene nanopores: high-performance bifunctional electrocatalysts for hydrogen evolution and oxygen reduction. Xie J, Feng X, Hu J, Chen X, Li A (2010) Al 3+-directed self-assembly and their electrochemistry properties of three-dimensional dendriform horseradish peroxidase/polyacrylamide/platinum/single-walled carbon nanotube composite film. Ye R, Zhang Y, Chen Y, Tang L, Wang Q, Wang Q, Li B, Zhou X, Liu J, Hu J (2018) Controlling shape and plasmon resonance of Pt-etched nanorods. Lai S, Fu C, Chen Y, Yu X, Lai X, Ye C, Hu J (2015) Pt-content-controlled synthesis of Pd nanohollows/Pt nanorods core/shell composites with enhanced electrocatalytic activities for the methanol oxidation reaction. Ĭhao T, Luo X, Chen W et al (2017) Atomically dispersed copper–platinum dual sites alloyed with palladium nanorings catalyze the hydrogen evolution reaction. Yin H, Zhao S, Zhao K, Muqsit A, Tang H, Chang L, Zhao H, Gao Y, Tang Z (2015) Ultrathin platinum nanowires grown on single-layered nickel hydroxide with high hydrogen evolution activity. You B, Sun Y (2018) Innovative strategies for electrocatalytic water splitting. Morales-Guio CG, Stern LA, Hu X (2014) Nanostructured hydrotreating catalysts for electrochemical hydrogen evolution. This work expands future applications of MXene-based nanomaterials in clean energy conversion reactions. The HER performance of the MXene/Pt- x nanomaterials was influenced by both Pt-loading amounts and Pt particle sizes. The efficiently electrocatalytic HER activity of MXene/Pt- x nanomaterials was due to the electron transfer from MXene to Pt NPs.
The optimum catalytic activity was obtained on the MXene/Pt-3 with a low overpotential of 302 mV versus reversible hydrogen electrode (RHE) at 10 mA cm −2, which was about 84 mV less than MXene/Pt-2.
The Pt-loading amounts on the MXene could be simply controlled by varying the adding amounts of H 2PtCl 6, which would influence the sizes of Pt NPs on the MXene.
#Pt xps peak for pt metal series#
In this work, a series of MXene/Pt- x (wherein, x is the adding amount of 6.2 mM H 2PtCl 6 solution) nanomaterials were fabricated via a facile synthesis method, in which coral-like Pt nanoparticles (NPs) were deposited on Ti 3C 2T x MXene.
The results indicate that GO/2Pt2Pd catalysts exhibited high activity with high stability toward formic acid and the mixed acids in the biomass product containing FA and AA at a 12.5:87.5 ratio.Exploring efficient catalysts for hydrogen evolution reaction (HER) is one of focus points of energy research. In all cases, both noble Pt and Pd in bimetallic catalyst demonstrated that the catalytic ability of them for acid oxidation can be strongly promoted by the appropriate ratio of alloying metal, and the outer layer of Pd and Pt on the electrode affected the oxidation ability of different acid compositions. The structure, surface morphology, and elemental composition of the prepared catalysts were also broadly characterized. Graphene oxide (GO) carrying Pt and Pd nanoparticles homogeneously dispersed by electrodeposition was selected as a carbon support for catalyst fabrication for various electrodes to enhance the oxidation of various components of mixed acids (such as formic acid (FA) and acetic acid (AA)). This work aims to use mixed acids from biomass production as fuel for low-temperature fuel cells.