FeSn-C2N 的合成精妙地结合了环己六酮与尿素的交联、热解、以及金属盐的湿浸渍与再热解等步骤。首先,通过高温热解获得C2N载体,其独特的N 6 空腔结构为金属原子的锚定提供了优越平台。随后,Fe与Sn金属盐被精准地引入并固定在N 6 空腔内,形成非对称的双金属位点。此过程中,Sn与Fe原子间的p-d轨道匹配,预示着...
6H2O (4 mmol) and FeCl2?4H2O (2 mmol) was prepared with an initial pH of 1.48. However, GO sheets are prone to stack together at such low pH solutions, thus diminishing the effective surface of GO45. To address this problem, GO was not added into the mixture until the pH was ...
Another solution of Fe (NO3)3·9H2O (0.1 M), Co (NO3)21·6H2O (0.1 M), Cd (NO3)2·4H2O (0.1 M), and 2.5 g PbI2 was prepared. This later solution was stirred for 24 h. A pH 10 of the reaction is adjusted by using the sodium hydroxide solution. After reaching pH 10, the...
Typically, precursor solutions containing 0.67 M Fe3+ and certain concentrations of Zn2+ and Mn2+ ions by dissolving Zn(NO3)2·6H2O, Mn(NO3)2·4H2O, and Fe(NO3)·9H2O in 50 mL of deionized water. The total concentration of Zn2+ and Mn2+ was fixed at 0.33 M, and the ...
The spectral features of the Fe L3,2-edge NEXAFS spectra mainly originate due to the hybridization of Fe 2p-3d orbitals, which are highly affected by the core-hole potential. These peaks arise from excitations that move from Fe 2p-filled core states to unoccupied Fe 3d states, which is ...
Performance enhancement of ZnO photocatalyst via synergic effect of surface oxygen defect and grapheme hybridization. Langmuir 2013, 29, 3097–3105. [Google Scholar] [CrossRef] Song, C.; Sun, Y.; Xu, Y.; Wang, D. Synthesis and optical property of ZnO nano-/micro-rods. Front. Optoelectron...
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血中的葡萄糖 3.89~6.11mmol/L 低血糖(hypoglycemia):血糖浓度《3mmol/L。高血糖(hyperglycemia)》6.9mmol/L 第 5 页共 15 页 6 一、血糖的来源和去路 食物中糖 消化吸收 肝糖原 分解 非糖物质 异生作用 来源 血糖 3.89-6.11 mmol/L 氧化分解供能 CO2、H2O、能量 合成 肝糖原、肌糖原 合成 脂肪、...
In order to study the solvation effect, we tried to use the SCRF (self-consistent reaction field) keyword to perform a calculation in the presence of a solvent such as dimethyl sulfoxide or H2O. But the calculation exceeds the current popular computer power for our large systems. The ...
√四、名词解释题 1.核酶 2.增色效应 3.Tm 值 4.核小体 5.Z-DNA 6.反密码子 7、核酸的变性(denaturation) 8、核酸的杂交(hybridization) 五、问答题 √1、比较 mRNA 和 DNA 在结构上的相同点和异同点。 √2、DNA 双螺旋结构模式的要点。 √3、简述 RNA 的种类及其生物学作用。 4、tRNA 结构特点。