Ren Fangfang, Pan Hongjun, Wang Cheng, Du Yukou
College of Chemical and Environmental Engineering and Instrumental Analysis Center, Yancheng Teachers University, Yancheng, 224007, P.R. China.
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P.R. China.
ChemSusChem. 2025 Feb 16;18(4):e202401682. doi: 10.1002/cssc.202401682. Epub 2024 Nov 7.
Designing high-performance anodic catalysts to drive glycerol oxidation reaction (GOR) is essential for advancing direct alcohol fuel cells. Coupling Pd with oxophilic materials is an effective strategy to enhance its intrinsic catalytic activity. In this study, we successfully synthesized Pd/BiTe catalysts with tunable compositions, using BiTe as a novel promoter, and applied them to the GOR for the first time. Electrocatalytic tests revealed that the activity of the Pd/BiTe catalysts was closely linked to their compositions. Among these catalysts, the optimized Pd/BiTe-20 % showed potential to replace the commercial Pd/C catalyst, exhibiting a peak current density 5.2 times higher than that of the benchmark Pd/C catalyst. Furthermore, improved catalytic stability and faster catalytic kinetics were observed for Pd/BiTe-20 %. The synergistic effect between Pd and BiTe is responsible for the high performance of the Pd/BiTe-20 % catalyst.
设计高性能阳极催化剂以驱动甘油氧化反应（GOR）对于推进直接醇类燃料电池至关重要。将钯与亲氧材料耦合是提高其固有催化活性的有效策略。在本研究中，我们成功合成了具有可调组成的钯/铋碲催化剂，使用铋碲作为新型促进剂，并首次将其应用于GOR。电催化测试表明，钯/铋碲催化剂的活性与其组成密切相关。在这些催化剂中，优化后的钯/铋碲-20%显示出替代商业钯/碳催化剂的潜力，其峰值电流密度比基准钯/碳催化剂高5.2倍。此外，钯/铋碲-20%表现出改善的催化稳定性和更快的催化动力学。钯和铋碲之间的协同效应是钯/铋碲-20%催化剂高性能的原因。
