Hydrogen positions in single nanocrystals revealed by electron diffraction

被引：203

作者：

Palatinus, L. ^{[1
]}

Brazda, P. ^{[1
]}

Boullay, P. ^{[2
]}

Perez, O. ^{[2
]}

Klementova, M. ^{[1
]}

Petit, S. ^{[2
]}

Eigner, V. ^{[1
]}

Zaarour, M. ^{[3
]}

Mintova, S. ^{[3
]}

机构：

[1] Czech Acad Sci, Inst Phys, Slovance 2, Prague, Czech Republic

[2] Univ Caen, Normandie Univ, CRISMAT,Lab Cristallog & Sci Mat,ENSICAEN, Ecole Natl Super Ingn Caen,UNICAEN,CNRS UMR 6508, 6 Bd Marechal Juin, F-14050 Caen, France

[3] Normandie Univ, ENSICAEN, UNICAEN, LCS,CNRS UMR 6506, 6 Bd Marechal Juin, F-14050 Caen, France

来源：

SCIENCE | 2017年 / 355卷 / 6321期

关键词：

CRYSTAL-STRUCTURE REFINEMENT; TOMOGRAPHY;

D O I：

10.1126/science.aak9652

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The localization of hydrogen atoms is an essential part of crystal structure analysis, but it is difficult because of their small scattering power. We report the direct localization of hydrogen atoms in nanocrystalline materials, achieved using the recently developed approach of dynamical refinement of precession electron diffraction tomography data. We used this method to locate hydrogen atoms in both an organic (paracetamol) and an inorganic (framework cobalt aluminophosphate) material. The results demonstrate that the technique can reliably reveal fine structural details, including the positions of hydrogen atoms in single crystals with microto nanosized dimensions.

引用

页码：166 / 169

页数：4

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