A novel two-step, low-temperature method was employed for the synthesis of a catalyst with small platinum content (2 wt%) based on sulfur doped reduced graphene oxide (S-RGO-Pt). Morphology and chemical composition of the hybrid material were investigated by several methods: X-ray powder diffraction (XRD), transmission and scanning electrode microscopy (TEM, SEM), elemental analysis, X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. The electrocatalytic performance of the prepared hybrid material was investigated in 1M CH₃OH/1M NaOH using a modified glassy carbon electrode (GC_S-RGO-Pt). The results showed excellent electrocatalytic activity and stability toward methanol oxidation in alkaline media (50.4% activity retained after 500 cycles and 8.4% after 1000 cycles) compared to commercial platinum 10 wt% on carbon (Pt/C) material (8.09% activity retained after 500 cycles). The catalyst tolerance to CO poisoning intermediates was evaluated using CO stripping voltammetry and the ratio of forward and backward peak current density (I_f/I_b). The I_f/I_b ratio calculated for S-RGO-Pt is 15, while for Pt/C is 9.6, which clearly demonstrates that the prepared hybrid material is significantly more efficient than commercial Pt/C, even if the platinum content is only 2 wt%. The rotating disk electrode (RDE) technique was employed to study the kinetic aspects of methanol oxidation reaction in alkaline media. To follow the transformations occurred at the electrodes' surfaces after the electrochemical treatment, the Raman spectroscopy and Machine Learning (ML) algorithms were used; the results also indicated a greater stability of the S-RGO-Pt composite for Methanol oxidation reaction (MOR) in alkaline media.

基于硫掺杂的还原氧化石墨烯（S-RGO-Pt），采用新颖的两步低温方法合成具有少量铂含量（2 wt％）的催化剂。通过几种方法研究了杂化材料的形貌和化学组成：X射线粉末衍射（XRD），透射和扫描电极显微镜（TEM，SEM），元素分析，X射线光电子能谱（XPS）和拉曼光谱。使用修饰的玻碳电极（GC_S-RGO-Pt）在1M CH ₃ OH / 1M NaOH中研究了制备的杂化材料的电催化性能）。结果表明，与市售10％（重量）碳（Pt / C）材料的铂（活性碳后保留8.09％）相比，碱性介质具有优异的电催化活性和对甲醇氧化的稳定性（500次循环后保留50.4％的活性，1000次循环后保留8.4％的活性）。 500个周期）。使用CO溶出伏安法和正向和反向峰值电流密度之比（I _f / I _b）评估了催化剂对CO中毒中间体的耐受性。在我_˚F / I _bS-RGO-Pt的计算比率为15，而Pt / C的比率为9.6，这清楚地表明，即使铂含量仅为2 wt％，所制备的杂化材料也比市售Pt / C效率更高。旋转盘电极（RDE）技术用于研究碱性介质中甲醇氧化反应的动力学方面。为了跟踪电化学处理后电极表面发生的转变，使用了拉曼光谱和机器学习（ML）算法；结果还表明，S-RGO-Pt复合材料在碱性介质中对甲醇氧化反应（MOR）具有更高的稳定性。