【无机化学学报】doi: 10.11862/CJIC.20230388
通过高温固相反应法制备了Ba0.85Ca0.15Ti0.90Zr0.10O3∶xSm3+(BCTZ∶xSm3+,x=0.0%、0.2%、0.4%、0.6%、0.8%、1.0%,物质的量分数)陶瓷,系统研究了其微观形貌、铁电性能、储能性能和光致发光性能。研究表明,Sm3+掺入后,陶瓷平均晶粒大小明显下降,致密度显著提高。所有陶瓷均表现出典型的铁电性。BCTZ∶xSm3+陶瓷放电储能密度得到了极大的提高,BCTZ∶1.0% Sm3+陶瓷放电储能密度较纯BCTZ陶瓷可提高约49.0%。此外,在408 nm光的激发下,BCTZ∶xSm3+陶瓷在596 nm左右表现出强烈的橙红色发光,且发光强度相对可调性可达449%。
【无机化学学报】doi: 10.11862/CJIC.20240445
Iron (Fe) nanoparticles and graphite (Gr) with different masses of bismuth trisulfide (Bi2S3) were mixed by high-energy ball milling treatment to fabricate the corresponding composite iron anodes Bi2S3@Fe-Gr. The hydrogen evolution reaction and iron passivation process on these iron electrodes were investigated in alkaline and neutral solutions. The iron electrode Bi2S3-3@Fe-Gr (The additional amount of Bi2S3 was 3 mg) revealed the strongest ability to inhibit hydrogen evolution among the iron electrodes of the present investigation, while the Bi2S3-6@Fe-Gr electrode (The additional amount of Bi2S3 was 6 mg) delivered significant performance in inhibiting anodic passivation. This is because the high-energy ball milling process leads to the well-dispersion of Bi2S3 and the changes in the surface of Fe nanoparticles, thereby slowing down the passivation of the iron electrode surface.
