2026-10-13T22:48:19Z https://www.scidb.cn/oai

10.57760/sciencedb.j00124.00100 2024-11-19T11:11:31Z

2024-11-19 Comparative Study on the Structural Properties and Electrochemical Performance of Xylan-derived Char Catalyzed by Na2CO3 at Various Concentrations doi:10.57760/sciencedb.j00124.00100 en This study investigated the catalytic effect of Na2CO3 on the structural properties of xylan char, and tested its electrochemical performance as an anode material for sodium-ion batteries. Characterization using X-ray microscopy and scanning electron microscopy demonstrated that the morphological structure of xylan char was altered following Na2CO3 catalysis. Increasing the Na2CO3/xylan ratio resulted in a slenderization of the triangular prism shape of the char skeleton and a reduction in porosity. X-ray diffraction analysis showed that Na2CO3 promoted the growth of the (004) crystal plane of graphite during xylan pyrolysis, while inhibiting the formation of the (100/101) crystal planes. Raman spectroscopy analysis indicated that the presence of Na2CO3 had changed the graphitization degree of xylan char. Electrochemical tests further showed that char prepared with a Na2CO3/xylan mass ratio of 1:1 exhibited the highest sodium storage capacity. These findings suggest that carbon materials derived from xylan hold promise for future applications in energy storage devices. xylan char; alkali metal salts; biomass; catalysis; energy storage li ya min RESTRICTED dataset http://www.doi.org/10.1016/s1872-5813(24)60509-8 Science Data Bank