Solid‐state synthesis led to a mixed KPbF 2 Cl HP with an orthorhombic structure as determined from X‐ray diffraction and energy dispersive X‐ray spectroscopy. The high formation energy (‐0.546...

对暴露于空气后的铅金属进行 O1s 区域分析，结果表明铅的天然氧化物中氢氧化铅的浓度较高。 PbO2 可能会因为与空气中的 CO2 发生反应而在表面形成少量 PbCO3。 这种蓝白色金属质地柔软，具有延展性。 铅的导电性差，耐腐蚀且密度大。 铅的化学符号 Pb 来源于拉丁文 "plumbum"，原意为“液态银”。 长期接触铅会导致神经损伤、肾疾病、心血管疾病和生殖毒性。 虽然铅的有害影响早在公元前2000年就被确认，但有史以来却一直用铅来制作管道和弹药。 最近，铅被用于制 …

2021年2月1日 · The Pb:I:Cl ratio from XPS were: 1:4.0:0 (sample MAI + PbI 2), 1:3.9:0 (sample MAI + PbCl 2), and 1:3.9:0 (sample MAI + PbCl 2 /PbI 2). Again, this excessive iodine content is consistent with the absence of unbonded metallic lead, which confirms the …

2017年8月31日 · The effect of PbCl2 on the morphologies, structures, optical, and photovoltaic performance of CsPbBr3 perovskite solar cells is investigated systemically. Compared with orthorhombic CsPbBr3, cubic CsPbBr 3 demonstrates a significant improvement for electron lifetime (from 6.7 ns to 12.3 ns) and diffusion length (from 69 nm to 197 nm), as well ...

2001年11月1日 · A structural characterization of PbO–PbCl 2 –CdCl 2 oxychloride glasses was achieved using 207 Pb and 113 Cd nuclear magnetic resonance (NMR) and X-ray photoelectron spectroscopy (XPS). 207 Pb static NMR spectra exhibit two broad components, whose intensity change with oxygen–chlorine substitution in the glass composition. 207 Pb phase ...

2021年5月2日 · PbCl 2 additive engineering is an effective method to decrease the charge accumulation in devices. Herein, the influence of PbCl 2 additive on the charge transport properties of inverted planar MAPbI 3 perovskite devices is investigated by capacitance–voltage (C – V) spectroscopy.

通过BET，XRD，SEM，XPS，NH3-TPD，NH3化学吸附，FT-IR和催化活性测量，研究了PbCl2对基于钒的催化剂上NH3选择性催化还原NO的影响。 结果表明，PbCl2使催化剂高度失活。 PbCl2的掺杂会降低表面酸度，尤其是布朗斯台德酸位。

2014年6月15日 · XPS characterization reveals that the presence of PbCl2 resulted in the transformation of V (5+) into V (4+), which decreased the reducibility of vanadia species. Based on the analysis of physical and chemical properties of the catalysts, the PbCl2-poisoning mechanism model of the vanadia-based SCR catalysts was proposed.

2001年11月1日 · A structural characterization of PbO–PbCl2–CdCl2 oxychloride glasses was achieved using and nuclear magnetic resonance (NMR) and X-ray photoelectron spectroscopy (XPS). static NMR spectra...

2023年11月1日 · We originally adopt a two-type ligand strategy to fabricate bulk PNCs/polystyrene (PS) nanocomposites, including a new type of synthetic polymerizable ligand. The CsPbCl 3 PNCs/PS nanocomposites...