Bilateral testicular Leydig cell tumor with adrenocortical adenoma: a case report

A case of bilateral testicular Leydig cell tumor with left adrenocortical adenoma in a 27-year-old male is presented. He underwent bilateral radical orchiectomy, and was diagnosed with a malignant Leydig cell tumor. Computed tomography revealed left adrenal mass and primary adrenal tumor or metastatic malignant Leydig cell tumor was suspected. Left adrenalectomy was performed and the histopathological diagnosis was adrenal cortical adenoma. The adrenal cortex and testicle are of common mesodermal origin and the histologic pattern may overlap. Examination of the adrenal gland is necessary for patients with testicular Leydig cell tumor. We review and briefly discuss a case recently reported in Japan

The Synthesis of the Smaller Fullerenes (C24, C36) and Related Carbon Clusters

自富勒烯被发现以来，众多结构的富勒烯得到了表征。特别是通过氯等卤素原子在富勒烯球外的修饰，或者球内嵌金属原子，一些具有相邻五边形的非经典富勒烯被捕捉，并得到了表征。纵观这些得到表征的富勒烯结构，其碳数主要是60以上的高富勒烯。由于具有相邻五边形和极大的碳-碳键张力，碳数60以下的小富勒烯，一直被视为是不稳定的结构。而小富勒烯独特的结构，预示独特的性质。在理论研究和实际应用领域，都有着广阔的前景。 传统的富勒烯合成方法，如石墨电弧法，具有合成量少，产物组分复杂等制约因素。少量特殊结构富勒烯的得到，往往需要经过艰难的高效液相色谱的分离。 设计合成富勒烯的前驱体，再利用真空闪热（FVP）技术，定...Since the discovery of the fullerenes, many structures of the fullerenes have been determined. Especially, through the exohedral modification by halogen atoms or the endohedral encapsulation of metal atoms, some non-classical fullerene cages with fused pentagons were caught and determined. Generally, most of the currently available fullerenes have 60 or more carbon atoms. Smaller fullerenes with l...学位：理学硕士院系专业：化学化工学院化学系_无机化学学号：2052006115190

EQCM and in-situ reflectance FTIR spectroscopic studies of adsorption and oxidation of methanol on Pt electrode in alkaline media

The adsorption and oxidation of methanol on Pt electrode in alkaline media have been investigated by using cyclic voltammetry, electrochemical quartz crystal microbalance (EQCM) and in-situ reflectance FTIR spectroscopy. The experimental results demonstrated that the electrooxidation of CH3OH was closely relative to solution acidity. Only one current peak of methanol oxidation in PGPS was detected at -0.09 V, which illustrated the disappearance of the second current peak due to Pt electrode passivation in alkaline media. The magnitude of the dissociative adsorbate of methanol in alkaline media is smaller than that in acidic media. The main product, such as CO2 and CO32-, was detected clearly and the reactive intermediates that were determined by FTIRS under experimental condition might be mainly HCOO- species. The EQCM studies provide quantitative results of surface mass changes during methanol oxidation, and have thrown new light in the elucidating methanol oxidation