研究结果表明,相较于钴尖晶石结构,重构后的 NixCo3-xO4-Ov 具有更强的 SO2-4 吸附能力,并且在 1000 mA/cm2 的条件下,氧进化反应(OER)可持续超过 1000 小时,整体水分离稳定性超过 600 小时。原位拉曼光谱和 XPS 结果显示,部分...
d) SEM-Mapping图像。Co9S8-Ni3S2/NCF、Co9S8/CF和NiSx/NF的XRD谱图e)和XPS扫描图f)。Co9S8-Ni3S2/NCF、Co9S8/CF和NiSx/NF的Co 2p (g)、Ni 2p (h)和S 2p (i)的高分辨率XPS光谱。 图2:Co9S8-Ni3S2/NCF及对照...
硫酸溶液中Pt(111)电极面上存在SO42—的XPS证据 翟润生;蔡茂盛 【期刊名称】《物理化学学报》 【年(卷),期】1994(010)008 【摘要】A detailed study of the cyclic voltammtry curve of Pt(111) electrode in H2SO4 solution by X-ray photoe1ectron spectroscopy (XPS) and a low energy electron diffe...
XPS analysis suggests that, rather than a change in the crystal phase, this increase is due to a loss of water and/or an increase in surface concentration of SO42−. It is noted that there is a reasonably good correlation between the relative surface sulfate concentration and relative ...
SO ‑NiFe/NSCT复合催化剂的S 2p XPS高分 4 4 2‑ 2‑ 辨谱如图1所示,表明形成了SO 修饰的NiFe合金以及氮硫共掺杂的碳纳米材料。SO ‑ 4 4 2‑ NiFe/NSCT复合催化剂的形貌如图2所示。SO ‑NiFe/NSCT复合催化剂的晶体结构如图3所 4 2‑ 示。图4所示为SO ‑NiFe/NSCT复合催化剂与商业化...
XPS analysis suggests that, rather than a change in the crystal phase, this increase is due to a loss of water and/or an increase in surface concentration of SO42−. It is noted that there is a reasonably good correlation between the relative surface sulfate concentration and relative ...
图2表示实施例1中催化剂的x射线光电子能谱分析图(xps)。图3表示实施例1中催化剂的红外光谱谱图(ft-ir)。图4表示实施例1中催化剂的氮气吸附-脱附等温曲线(bet)。图5表示富co2胺溶液间歇式解吸装置示意图。具体实施方式下面结合实施例对本发明作进一步说明。实施例1:fe2o3-so42-/zro2-mcm-41分子筛催化剂将...
图3 (a)S 2p,(b)O 1s和(c)Ce 3d的AR-XPS光谱。(d)CeO2(111)和(e)S-CeO2(111)的DFT计算配置,以及Ce原子的电荷密度。©2022 American Chemical Society 图4 (a) 在250℃下,CeO2和S-CeO2催化剂的原位SO2吸附突破曲线。(b) 在250℃下,CeO2和S-CeO2催化剂的原位NO+SO2共吸附突破曲线。(c) ...
通过纳米稀土固体超强酸SO42-/TiO2-La3+催化合成a-蒎烯冰片(中文4000字,英文PDF) 摘要:采用浸渍法制备SO42-/TiO2-La3+固体超强酸,用TEM、XRD、XPS、NH3-TPD、Py-IR、TG等手段对催化剂的结构、酸度、酸性质和形貌进行了表征。最佳合成条件为:焙烧温度为500