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Questions related from Bruno Pescara
Dear all, I need to perform isotopic determination of Kr-85 in a gas matrix. Unfortunately, I'm no expert in the field, and I'm struggling to find which Mass spectrometer I should purchase. I...
12 January 2023 6,837 2 View
Good morning guys, Here's a pickle for you! Quick intro: I'm a new employee, and the company where I work needed a mass spectrometer (MS). They instructed my predecessor to buy one. Instead, he...
27 October 2022 3,065 0 View
Hi everyone, I hope this message finds you all well. I've recently been put in charge of a Residual Gas Analyzer, and it is the first time I have dealt with high vacuum and this type of...
06 September 2022 3,472 1 View
Dear All, I've been synthesizing Ge nanoparticles using OAm as a solvent/capping agent. Now I'm in the process of assigning the FTIR peaks of my samples. I've assigned almost every peak in the...
03 November 2020 4,353 2 View
Dear all, I'm trying to improve the quality, monodispersity, and size control of my Ge nanoparticle, which are coated with oleylamine as native ligand (Ge@Oam). Among the different options i'm...
19 July 2019 8,248 1 View
Dear all, I'm performing colloidal syntheses of Si and Ge nano-particles (NPs). Lately most of my result (XRD, EELS, Raman) are strongly effected by the presence of Nickel in my solution. The Ni...
28 March 2018 5,339 6 View
Dear all, Recently while performing a synthesis I've recorded a UV-Vis spectrum of a mixture of hexadecyl-amine (HDA) and sulfur, after heating treatment (please find it in the attachments, bright...
09 March 2018 6,844 5 View
Dear all, Recently i've been challenged by a question. In a paper i'm writing i'm reporting the synthesis of a-Ge quantum dots, in which i observe a small blue shift along with particle shrinking....
06 December 2017 5,706 5 View
Dear all, I´m currently synthesizing pure a-Ge NP (c-Ge only present in an amount around 2%) with a long aliphatic chain capping agent. the presence of this ligand on the surface makes the TEM...
25 April 2017 9,451 1 View
Dear All, I’ve been asked to prepare a critical review on the topic of “nanostructured germanium”. As a chemist working on the field since only 4-5 years, I feel I have a quite partial and biased...
01 January 1970 1,106 3 View
