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以对环境友好的Fe(acac)_3和Pd(acac)_2作为主反应物,PEG-400为还原剂,通过简易的溶剂热法制备了FePd纳米颗粒,并对其磁性能和电催化活性进行了研究。结果表明:合成态的样品中FePd纳米颗粒为fcc相,其磁性能表现为超顺磁性,并对乙醇氧化表现出了一定的电催化活性。经过95%Ar+5%H_2气氛下热处理后,FePd纳米颗粒从fcc相转变为fct相,磁性能转变为硬磁性,内禀矫顽力达到1.8 k Oe,而且样品对乙醇氧化的电催化活性较之热处理前明显提高,峰值电流密度达26.6 m A/mg。
FePd nanoparticles were prepared by a simple solvothermal method using Fe (acac) _3 and Pd (acac) _2 as the main reactants and PEG-400 as the reductant, and their magnetic properties and electrocatalytic activity Study. The results showed that the FePd nanoparticles in the as-synthesized samples were fcc phase, their magnetic properties showed superparamagnetism, and showed some electrocatalytic activity for ethanol oxidation. The FePd nanoparticles transformed from fcc phase to fct phase after heat treatment in atmosphere of 95% Ar + 5% H 2, the magnetic properties changed to hard magnetic, the intrinsic coercivity reached 1.8 k Oe, and the electrocatalytic activity of the sample for ethanol oxidation Compared with that before heat treatment, the peak current density reached 26.6 m A / mg.