铟对金电镀的影响

在柠檬酸盐镀金体系中,加入少量硬化元素Ｉｎ,形成Ａｕ－Ｉｎ合金镀层,从而改变了镀层的色泽和增加光亮度,电流密度比纯金电镀提高２－４倍,缩短了电镀时间。当Ｉｎ浓度为０．５－４ｇ／Ｌ,Ａｕ浓度为１０ｇ／Ｌ时,在３０－４０℃电流密度０．２－１Ａ／ｄｍ＾２等参数下电镀,镀层中Ｉｎ含量随着镀液中Ｉｎ浓度的增加而略有地加,而Ｉｎ浓度〉４ｇ／Ｌ时,镀层中Ｉｎ含量明显增加。     

火焰原子吸收光谱法测定铟的方法探讨

试验了火焰原子吸收光谱法测定铟的最佳介质及共存元素干扰情况。建立了以王水溶解试样,在5%硝酸介质中,使用空气-乙炔火焰,于原子吸收光谱仪波长303.9 nm处测定铟的分析方法。铟的测定范围为0.01%~6.0%,线性范围2.5~60μg/mL,回收率为93.3%~105%。     

A New,Thorough Look on Unusual and Neglected Group III-VI Compounds Toward Novel Perusals

The attention on group III-VI compounds in the last decades has been centered on the optoelectronic properties of indium and gallium chalcogenides. These outstanding properties are leading to novel advancements in terms of fundamental and applied science. One of the advantages of these compounds is to present laminated structures, which can be exfoliated down to monolayers. Despite the large knowledge gathered toward indium and gallium chalcogenides, the family of the group III-VI compounds embraces several other noncommon compounds formed by the other group III elements. These compounds present various crystal lattices, among which a great deal is offered from layered structures. Studies on aluminium chalcogenides show interesting potential as anodes in batteries and as semiconductors. Thallium (Tl), which is commonly present in the +1 oxidation state, is one of the key components in ternary chalcogenides. However, binary Tl–Q (Q = S, Se, Te) systems and derived films are still studied for their semiconducting and thermoelectric properties. This review aims to summarize the biggest features of these unusual materials and to shed some new light on them with the perspective that in the future, novel studies can revive these compounds in order to give rise to a new generation of technology.     

P204-Cyanex 923磺化煤油用于铟的萃取和反萃研究

采用正交试验系统研究和对比了高原条件下P204磺化煤油和P204-Cyanex 923磺化煤油对铟的萃取和反萃条件。研究表明,适量添加Cyanex 923可在不影响萃取率的同时,降低有机相对铁的萃取;3 mol/L HCl+1 mol/L ZnCl2溶液对P204-Cyanex 923磺化煤油具有良好的反萃性能。     

硫化铟对ZL108铝合金微弧氧化膜层结构和耐腐蚀性能的影响

在含有In2S3的硅酸盐电解液中对ZL108铝合金进行了微弧氧化处理.采用扫描电镜(SEM)、光学轮廓仪、X射线衍射(XRD)、X射线光电子能谱(XPS)和电化学工作站等检测手段,研究了添加In2S3对MAO膜层微观结构、相组成和耐蚀性等的影响.结果表明,In2S3的加入提高了微弧氧化电压,使膜层成膜速率增加,从而导致...     

Novel In-based high entropy spinel oxides with tunable lattice parameter

A new set of high entropy oxides with spinel structure and variable number of constituents, from five to nine, was prepared keeping the cations in equimolar ratio or reflecting their tendency to occupy octahedral or tetrahedral sites. This approach increases the number of cations into a single phase, leading to larger configurational entropy and to an important unit cell expansion from ～8.28 to ～8.55 Å. Among the many cations used, In and Al played a significant role in controlling the lattice parameter, with In producing a relevant unit cell expansion and Al a cell contraction. We demonstrate for the first time the insertion of In into a single-phase high entropy spinel, where it occupies the tetrahedral site, compensated by the inversion of Ni²⁺ and other divalent cations. Finally, we estimated the cation distribution for each spinel to correlate the dependence of the spinel lattice parameter with the average ionic radius.     

Hydroxyapatite supported PdxIn100-x as a novel electrocatalyst for high-efficiency glucose electrooxidation

Fuel cells are a very good candidate to provide energy conversion with green technology. Glucose is used as a fuel in fuel cells since it is easily available and has a high energy density. Herein, hydroxyapatite (HAp) was synthesized by precipitation method, and the sodium borohydride (NaBH₄) reduction method was used to fabricate HAp supported PdIn (PdIn/HAp) alloy anode catalysts at varying atomic molar ratios for glucose electrooxidation. Structural, crystallographic, and morphological properties of the PdIn/HAps were determined with X-ray diffraction analysis (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM), Brunauer-Emmett-Teller (BET) analysis, transmission electron microscopy (TEM), and inductively coupled plasma mass spectrometry (ICP-MS). Electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and chronoamperometry (CA) were employed for the electrocatalytic activity and stability of PdIn/Haps toward glucose electrooxidation. The results show that HAp has a boosting effect for PdIn alloy towards glucose electrooxidation. Pd₈₀In₂₀/HAp showed 2.6 times higher electrocatalytic activity than Pd/HAp, and it is the most active and stable catalyst in this study with a specific activity of 5.64 mA/cm².     

高铟高铁闪锌矿加压酸浸工艺研究

介绍高铟高铁闪锌矿精矿加压酸浸提取锌铟试验研究情况,重点考察精矿粒度、硫酸用量、时间、氧气分压力对铟、铁浸出率的影响。结果表明,采用二段加压浸出,既可以保证高的锌、铟浸出率,又能够实现锌、铟与铁的选择性浸出,降低浸出液的酸度。