Zobrazeno 1 - 10
of 182
pro vyhledávání: '"Holger Kohlmann"'
Autor:
Kristina Spektor, Holger Kohlmann, Dmitrii Druzhbin, Wilson A. Crichton, Shrikant Bhat, Sergei I. Simak, Olga Yu Vekilova, Ulrich Häussermann
Publikováno v:
Frontiers in Chemistry, Vol 11 (2023)
Hydrogenation reactions at gigapascal pressures can yield hydrogen-rich materials with properties relating to superconductivity, ion conductivity, and hydrogen storage. Here, we investigated the ternary Na–Si–H system by computational structure p
Externí odkaz:
https://doaj.org/article/551bfc2932ca4ee98a6f0750c541cb67
Publikováno v:
Crystals, Vol 12, Iss 12, p 1704 (2022)
Binary intermetallic compounds, such as FePd3, attract interests due to their physical, magnetic and catalytic properties. For a better understanding of their hydrogenation properties, both ordered FePd3 and disordered Fe0.25Pd0.75 are studied by sev
Externí odkaz:
https://doaj.org/article/b3e487e74329492baae4011f8dba2288
Autor:
Raphael Finger, Marc Widenmeyer, Thomas C. Hansen, Dirk Wallacher, Stanislav Savvin, Marko Bertmer, Anke Weidenkaff, Holger Kohlmann
Publikováno v:
Crystals, Vol 11, Iss 12, p 1548 (2021)
Temperature-dependent crystal structure alterations in the brownmillerite-type material Ba2In2O5 play a fundamental role in its applications: (i) photocatalytic CO2 conversion; (ii) oxygen transport membranes; and (iii) proton conduction. This is con
Externí odkaz:
https://doaj.org/article/aeb43b50ac214eae8e76f3f105865495
Publikováno v:
Quantum Beam Science, Vol 5, Iss 3, p 22 (2021)
A gas-pressure cell, based on a leuco-sapphire single-crystal, serving as a pressure vessel and sample holder, is presented for real time in situ studies of solid-gas hydrogenation reactions. A stainless steel corpus, coated with neutron absorbing va
Externí odkaz:
https://doaj.org/article/cbfa126e89534bb78b9d8cf0d0a0f63f
Publikováno v:
Crystals, Vol 11, Iss 7, p 750 (2021)
Heteroanionic hydrides offer great possibilities in the design of functional materials. For ternary rare earth hydride oxide REHO, several modifications were reported with indications for a significant phase width with respect to H and O of the cubic
Externí odkaz:
https://doaj.org/article/374a6d82c2344324918be7e5f0790941
Autor:
Lei Chen, Peng Cheng, Zhao Zhang, Liangrui He, Yang Jiang, Guobao Li, Xiping Jing, Yan'guang Qin, Min Yin, Ting‐Shan Chan, Bin Hong, Shi Tao, Wangsheng Chu, Zhi Zhao, Haiyong Ni, Holger Kohlmann, Oliver Oeckler
Publikováno v:
Advanced Science, Vol 6, Iss 16, Pp n/a-n/a (2019)
Abstract Research on lithium compounds has attracted much attention nowadays. However, to elucidate the precise structure of lithium compounds is a challenge, especially when considering the small ions that may be transferred between the interstitial
Externí odkaz:
https://doaj.org/article/24c8a171510c45ddb0471da2c57ae896
Autor:
Sebastian Weber, Sebastian Schäfer, Mattia Saccoccio, Nils Ortner, Marko Bertmer, Karsten Seidel, Stefan Berendts, Martin Lerch, Roger Gläser, Holger Kohlmann, Stephan A. Schunk
Publikováno v:
Catalysts, Vol 11, Iss 3, p 334 (2021)
Ru supported on mayenite electride, [Ca24Al28O64]4+(e−)4 a calcium aluminum oxide denoted as C12A7e−, are described in the literature as highly active catalysts for ammonia synthesis, especially under conditions of low absolute pressure. In this
Externí odkaz:
https://doaj.org/article/ee67164d58e44c44a1dfde8a3f1dec20
Publikováno v:
Inorganics, Vol 8, Iss 3, p 21 (2020)
The order of OH groups in the crystal structure of SbC2O4OH, a potential precursor in the synthesis of ternary oxides, was debated. Neutron diffraction on the deuteride SbC2O4OD revealed disordered OD groups with half occupation for deuterium atoms o
Externí odkaz:
https://doaj.org/article/22ca92d9529e459d9a2d3b58601de0a4
Publikováno v:
Crystals, Vol 9, Iss 11, p 600 (2019)
Many Zintl phases exhibiting a CrB type structure form hydrides. Systematic studies of AeTtHx (Ae = Ca, Sr, Ba; Tt = Si, Ge, Sn), LnTtHx (Ln = La, Nd; Tt = Si, Ge, Sn), and LnGaHx (Ln = Nd, Gd) showed the vast structural diversity of these systems. H
Externí odkaz:
https://doaj.org/article/3bed507d2007437fa6291617e36eee92
Autor:
Anton Werwein, Christopher Benndorf, Marko Bertmer, Alexandra Franz, Oliver Oeckler, Holger Kohlmann
Publikováno v:
Crystals, Vol 9, Iss 4, p 193 (2019)
Many Zintl phases take up hydrogen and form hydrides. Hydrogen atoms occupy interstitial sites formed by alkali or alkaline earth metals and/or bind covalently to the polyanions. The latter is the case for polyanionic hydrides like SrTr2H2 (Tr = Al,
Externí odkaz:
https://doaj.org/article/f24219780ff54d9ba3a9e9599afd3268