Trace Amount of SnO<sub>2</sub>-Decorated ZnSn(OH)<sub>6</sub> as Highly Efficient Photocatalyst for Decomposition of Gaseous Benzene: Synthesis, Photocatalytic Activity, and the Unrevealed Synergistic Effect between ZnSn(OH)<sub>6</sub> and SnO<sub>2</sub>
activity for the degradation of gaseousC6H6 and an efficiency almost 6 times higher than P25 (TiO2). More importantly, no obvious deactivation of the sample and the formation of stable deposits were observed in a long-term reaction for 48 h. Although the SnO2 amount is quite small and bare ZHS shows almost no activity, both of them are indispensable for the degradation of C6H6. SnO2 and ZHS can be understood
研发用于消除芳族化合物(如苯(C 6 H 6))的高性能光催化剂仍然是一个挑战,该催化剂已被视为室内大气中的优先有害挥发性有机化合物。羟基锡酸锌(ZnSn(OH)6,ZHS)是一种有前途的材料。但是,导致高活性的关键结构特征仍然是模棱两可的。为了解决这个问题,通过改变处理温度和溶液的pH值水热合成了一系列具有不同表面性质的ZHS。尽管ZHS可以在温和的反应条件下(温度90-120°C,pH 4-10)容易地合成,但是大多数样品都被痕量的低结晶SnO污染。2。原始的ZHS只能在强碱性溶液(pH 13)中生产。在120°C的pH 10溶液中制备的样品显示出最高的降解气态C 6 H 6的活性,其效率几乎是P25(TiO 2)的6倍。更重要的是,在48小时的长期反应中,未观察到明显的样品失活和稳定沉积物的形成。尽管SnO 2的量非常小,并且裸露的ZHS几乎没有活性,但它们对于C 6 H 6的降解都是必不可少的。SnO
Stannate derived bimetallic nanoparticles for electrocatalytic CO<sub>2</sub> reduction
作者:Xiaolong Zhang、Fengwang Li、Ying Zhang、Alan M. Bond、Jie Zhang
DOI:10.1039/c8ta02429d
日期:——
of 8 metal–Sn (metal = Mn, Co, Ni, Cu, Zn, Ag, Cd, and Pb) bimetallic materials by electrochemicalreduction of their metal stannates is reported. When the metal–Sn bimetallic materials were used as electrocatalysts for electrochemical CO2 reduction, bulk electrolysis results revealed that the Ag–Sn and Cu–Sn bimetallic systems showed the highest activity and selectivity for formate. When incorporated
据报道,通过电化学还原其金属锡酸盐可合成8种金属-Sn(金属= Mn,Co,Ni,Cu,Zn,Ag,Cd和Pb)双金属材料。当金属-Sn双金属材料用作电化学还原CO 2的电催化剂时,大量电解结果表明,Ag-Sn和Cu-Sn双金属系统显示出最高的甲酸盐活性和选择性。当与还原的氧化石墨烯(rGO)结合使用时,它们的电催化性能可以进一步提高,使其成为迄今为止报道的性能最好的锡基CO 2还原电催化剂之一。的银-锡/ RGO催化剂达到为甲酸(FE最高法拉第效率甲酸)的88.3%在-0.94 V与在0.5 M NaHCO 3水溶液中的电流密度为21.3 mA cm -2的RHE 。在Cu-Sn / rGO催化剂上观察到了可比的性能,在-0.99 V vs. RHE的条件下,最高的甲酸甲酸酯含量为87.4%,电流密度为23.6 mA cm -2。两种催化剂在6小时的电解时间内均表现出高稳定性,而甲酸甲酸酯的变化小于2%。这类双金属纳米粒子/
Rationally designed heterostructure ZnS/SnS@N-doped carbon microspheres as high-performance anode for lithium-ion batteries
作者:Lixuan Zhang、Man Zhang、Fan Peng、Qichang Pan、Hongqiang Wang、Fenghua Zheng、Youguo Huang、Qingyu Li
DOI:10.1016/j.jallcom.2022.164908
日期:2022.7
Metal sulfides are considered as promising anodes for lithium-ionbatteries (LIBs) because of their high capacity. Among all of these metal sulfides, Tin(II) sulfide (SnS), possessing a unique 2D structure and with high lithium storage capacity, attract more attention as a promising anode for LIBs. However, serious volume change, sluggish kinetics, and low electric conductivity during the charging/discharging
金属硫化物因其高容量而被认为是有前途的锂离子电池(LIB)负极。在所有这些金属硫化物中,硫化锡(II)(SnS)具有独特的二维结构和高储锂容量,作为锂离子电池的负极材料备受关注。然而,充放电过程中体积变化严重、动力学缓慢、电导率低,导致倍率性能差和容量衰减快。在此,通过简便的水热工艺结合 PPy 涂层和微球硫化策略合成了 ZnS/SnS@C 蛋黄壳微球 (ZSS@NC)。由 ZnS/SnS 异质结构产生的内建电场有利于锂离子的快速传输并提高电导率。同时,N掺杂碳进一步提高了电子电导率并提供了强大的支撑结构,可以减轻锂化/脱锂过程中ZnS / SnS的体积变化。因此,ZnS/SnS@NC 提供高容量(775.5 mA hg-1 at 200 mA g -1 200 次循环后),出色的倍率性能(395.8 mA hg -1 at 5 A g -1)和优异的长期循环性能(571.2 mA hg -1
Fabrication of Zn2SnO4/SnO2 hollow spheres and their application in dye-sensitized solar cells
作者:Rongmei Liu、Wei Du、Qun Chen、Feng Gao、Chengzhen Wei、Jing Sun、Qingyi Lu
DOI:10.1039/c2ra22320a
日期:——
Uniform Zn2SnO4/SnO2 hollow spheres were successfully synthesized and hybridized by calcining ZnSn(OH)6 solid spheres in air, and showed a very good efficiency of 4.52% as an electrode material for DSSCs. The in situ hybridization of Zn2SnO4 and SnO2 in Zn2SnO4/SnO2 hollow spheres is beneficial for electron transport and light scattering, and leads to the high efficiency of the Zn2SnO4/SnO2 composite in DSSCs.
methods were used to analyse the degradation and oxidation index and smoke measurements were also carried out on the resins with and without tin additives. The interaction between the tin compounds and the halogens introduced into the polymer structure using halogen-containing reactive monomers affects the degradation, fire retardant and smoke suppressant properties. The changes are described and the nature