To determine the oxidation state of nickel (Ni) in the complex (Ni(CO)4), we can follow these steps: 1. Identify the overall charge of the complex: The complex (Ni(CO)4) is neutral, meaning its overall charge is 0. 2. Determine the contribution of the ligands: In this complex,...
Enter just an element symbol to show the common and uncommon oxidation states of the element. 元素中的第一个字符使用大写字母,第二个字符使用小写字母。例子:Fe, Au, Co, Br, C, O, N, F。 你可以用小括号()或括号[ ]。 What is an oxidation state? The oxidation state or oxidation number ...
The average oxidation state of the Mn atoms has been estimated as about 4+, and that of the Co atoms as about 3+, over the whole particle area for both the pristine and charged samples. For the Ni atoms, with space integration over the particles, the average oxidation state was ...
Enhanced oxidation-resistance Cu-Ni core-shell nanowires: Controllable one-pot synthesis and solution processing to transparent flexible heatersDuring past few years, various efforts have been made to explore new transparent conductive materials... Jianyu Chen§,Jun Chen§,Yi Li§,... 被引量: 0发...
制备了离子态单原子Ni与金属态单原子Ni模型催化剂,综合利用扫描隧道显微镜(STM)、非接触原子力显微镜(AFM)、X射线光电子能谱(XPS)、程序升温脱附(TPD)和密度泛函理论计算(DFT)等技术与方法,表征了离子态和金属态的单原子Ni在CO氧化反应中的催化性能差异...
While inorganic bases such as K2CO3 were not effective, possibly due to the precipitation of halides required to stabilize the NiI intermediate14 or the unproductive decomposition of the NiIII intermediates (Supplementary Figs. 46–47), DABCO was effective but proceeded at a slightly slower rate ...
which is generally ascribed to the spontaneous electron transfer from the active Ni center to the C 2porbital of CO2during the adsorption and activation of CO260. The intensity of the white line peak is closely related to the elemental chemistry state, as proven by the calculations of the Ni...
首先,4K下CO2随机分布在CuO表面的-Cu-O-链间,随着进一步升温,Ni2团簇水平吸附表面迁移的CO2并进一步活化CO2,CO2其中一个O原子与Ni2团簇中的Nic原子化学成键,而C原子与基底Cu原子结合,当进一步升温后,CO2分解形成CO和O物种。 图2 CO2在Ni2团簇上的吸附、活化和解离过...
It has been reported that compared to metal nanoparticles, supported metal clusters (SMCs) in high oxidation states have less adsorbing strength to CO, allowing a higher CO selectivity in CO2 hydrogenation22,26. However, the stability of SMCs is usually negatively correlated with their surface ...
Fig. 4. TGA of (a) Co(L)2.2H2O, (b) Ni(L)2.2H2O, (c) Cu(L)2, and (d) Zn(L)2.2H2O. Co(L)2.2H2O decomposed in three steps. First step resulted in mass loss of 3.10% (Calc. 3.50%) corresponding to the loss of two water molecules (temperature range 100–230 °C)....