Ever since C.R.Berry found quantum size effect on nanometer-sized AgX grain and made studies on its anomalous absorption behaviour, much effort has been made on different aspects of nanometer-sized grain emulsion. H.Thiry, M.Iwasaki and his coworkers prepared nanometer-sized AgBr or AgBrI grain emulsion below 30nm scale and made some attempts on spectral sensitization; Investigated the mixture ...

The asymmetric unit of the title salt, {(C(12)H(20)N(4))[Ag(2)Br(4)]}(n), contains one-half of a substituted imidazolium cation, one Ag(+) and two Br(-) ions. The cation is completed by crystallographic inversion symmetry. The crystal structure is made up from polymeric sheets of {[AgBr(2)](-)}(n) anions extending parallel to (100). The basic building unit of the anion is a slightly distorted A...

The regularities of formation and electronic characteristic of photolytic silver on the surface of sols and microcrystals (MC) AgBr of various sizes and habits, as well primitive, as subjected to chemical sensitization was explored by transmission electronic microscopy (TEM) and x-ray photoelectron spectroscopy (XPS) methods. XPSresults were compared to condition of silver in sols and MC AgBr, ...

The initial stage of the reaction between sodium stearate (NaSt) and AgNO(3) produces silver stearate (AgSt) micelles, [(C(18)H(35)O(2))(x)(Na(x-y))(Ag(y))(H(2)O)(z)], and aggregations of these AgSt micelles in the form of cubic pre-AgSt crystals. When cubic grains of 50 nm AgBr are added to the NaSt dispersion prior to the AgNO(3), the reaction proceeds to form the silver stearate micelles, bu...

AgBr nanoparticles anchored nitrogen-doped graphene nanocomposites were designed to obtain enhanced electrochemiluminescence intensity and better stability, and further applied in electrochemiluminescence detection for the first time.

A series of reduced graphene (rGO) and AgBr composite heterojunction photocatalysts were fabricated through a facile solvothermal method. The rGO/AgBr heterostructures characterized by XPS, XRD, UV–Vis DRS, SEM, TEM, photoluminescence (PL), the transient photocurrent responses. TEM analyses indicated that silver bromide successfully compounded without other impurities. DRS exhibited composites ...

From NMR line width experiments on the diffusion of Naf and Li+ ions in AgBr activation enthalpies of h(Naf) = (1.21 f 0.05) eV and h(Lif) = (0.88 f 0.04) eV are deduced for NMR correlation times. Correlation effects in impurity diffusion are inferred from a comparison of the NMR data to results from conductivity and tracer diffusion. Naf ions are found to perform an almost perfect random walk....

Abstract The aim of the study is to measure thermal conductivity silver halide light guides based on crystals AgCl-AgBr system used in PSD production technologies. temperature coefficient samples under were determined by laser flash method using LFA 467 (Hyper Flash) installation. We studied mono- and polycrystalline solid solutions with composition AgCl 0,25 AgBr 0,75 range 298–523 K. investig...

Anion self-diffusion has been studied in PbBrz and AgBr using an isotope exchange technique. In addition the diffusion of Pb in PbBr? has been measured using 2loPb as tracer and a chemical sectioning method. The effect of bromine gas pressure on anion diffusion has been examined for both materials. In the case of PbBr. these observations have been supplemented by ionic conductivity measurements...

Although reduced graphene oxide (rGO)-based photocatalyst composites have been intensively developed during the past few years, the influence of reduction extent of rGO on the photocatalytic performance of the rGO-based composite has virtually not been investigated due to some technical limitations, such as the poor water dispersibility of rGO and low reduction selectivity of the hydrothermal m...