属于MOF的硫化,但是合成的材料,XRD找不到Ni的归属了,不知道Ni元素以什么形态存在,也没有找到Ni元素。有高手可以帮我解析一下吗?还有在CCDC上找到的Ni-BTC有好几个晶型,和我照文献合成的都有区别,而文献中未给出Ni-BTC的CCDC号,说是模拟得到XRD图,这个可以用计算机模拟得出吗?刚开始接触材料,不懂的太多,请大家不吝赐教。
研究人员在H2/NH3/N2(4.6:33.6:61.8,v/v/v)的混合气氛中,通过在390℃下热解镍基金属-有机骨架Ni3(BTC)2(BTC,benzene-1,3,5-tricarboxylate)来制备Ni-H2-NH3催化剂。NH3用于引入氮掺杂以调节Ni的电子结构,而H2用作还原剂以形成金属Ni。此外,在H2/N2和NH3/N2的比...
他们主要用到了以下几种关键技术方法:首先是阴极电化学沉积法,通过这种方法,他们在碳毡(CF)和石墨板(GP)电极上成功合成并沉积了 Ni/Co - BTC MOF 薄膜,就像是给电极穿上了一件特殊的 “纳米外套”;其次,利用场发射扫描电子显微镜(FE - SEM)、傅里叶变换红外光谱(FT - IR)、X 射线衍射(XRD)和能量色散 X...
XRD patterns of Ni-BTC MOFs are shown in Fig. 4. XRD patterns are quite compatible to each other and the sharpness of the respective peaks is the evidence of inherent crystallinity. While the patterns taken from US40 and US60 show the same crystal structure, US80 forms a different crystal...
significant due to The XRD pattern of Ni-BTC displays distinct peaks that unveil the Ni-BTC´s pure phase and crystalline arrangement. The peak observed at 2θ value of 12.67° confirmed the presence of MOF structure. Post-calcination and the conversion of Ni-BTC to NiO/Ni@C, the ...
NMC and NCA exhibited layered structure, and magnetic ordering observed in pristine NMC suggested unique surface structure. The temperature dependent magnetic susceptibility at field cooling (FC) and zero field cooling (ZFC), from NMC and NCA samples (at 100 Oe) along with the XRD patterns...
[0021]图3为实施例1中Ni/C催化剂的XRD图。 [0022]图4为实施例3中Ni‑BTC前体的SEM图。 [0023]图5为实施例3中Ni/C催化剂的SEM图。 [0024]图6为实施例3中Ni/C催化剂的XRD图。 [0025]图7为实施例4中Ni/C催化剂循环稳定性测试图。 [0026]图8为对比例1中Ni‑BTC前体的SEM图。 [0027]图9为对比例...
The NiCux-BTC precursors with different Ni/Cu molar ratios were prepared in EtOH/H2O (1/1, V/V) under room temperature. The XRD patterns of NiCux-BTC precursors are presented in Figure S1. All samples are highly crystalline and display similar XRD patterns. As depicted in the SEM images...
图2 (a)H3BTC、N-BTC和一系列NCV-BTC的红外光谱图;(b)NS、NCS-6、NVS-1和一系列NCVS的XRD谱图和(c)拉曼光谱图;高分辨率XPS光谱图:(d)NS、NCS-6、NVS-1和NCVS-3的Ni 2p图;(e)NCS-6和NCVS-3的Co 2p3/2图;(f)NVS-1和NCVS-3的V 2p3/2图;(g)NS、NCS-6、NVS-1和NCVS-3的S 2p图和...
At the material scale, chemical mapping in combination with X-ray diffraction (XRD) analysis can be used to indicate the existing chemistry or the appearance of chemical processes upon cycling in the cell electrodes, and to identify the active material stoichiometry in the electrode grains. The el...