Unraveling the Spatial Distribution of Catalytic Non-Cubic Au Phases in a Bipyramidal Microcrystallite by X-ray Diffraction Microscopy

被引:12
作者
Sow, Chaitali [1 ]
Sarma, Abhisakh [2 ]
Schropp, Andreas [2 ]
Dzhigaev, Dmitry [2 ]
Keller, Thomas F. [2 ,3 ]
Schroer, Christian G. [2 ,3 ]
Sanyal, Milan K. [4 ]
Kulkarni, Giridhar U. [1 ]
机构
[1] Jawaharlal Nehru Ctr Adv Sci Res JNCASR, Chem & Phys Mat Unit, Bangalore 560064, Karnataka, India
[2] Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany
[3] Univ Hamburg, Phys Dept, D-20355 Hamburg, Germany
[4] Saha Inst Nucl Phys, Kolkata 700064, India
基金
欧盟地平线“2020”;
关键词
X-ray diffraction microscopy; crystal structure; gold; crystallite; decahedra; CRYSTAL-STRUCTURE; SILVER NANOWIRES; STRAIN; GROWTH; NANOPARTICLES; HCP;
D O I
10.1021/acsnano.0c02031
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Tuning of crystal structures and shapes of submicrometer-sized noble metals have revealed fascinating catalytic, optical, electrical, and magnetic properties that enable developments of environmentally friendly and durable nano-technological applications. Several attempts have been made to stabilize Au, knowing its extraordinary stability in its conventional face-centered cubic (fcc) lattice, into different lattices, particularly to develop Au-based catalysis for industry. Here, we report the results from scanning X-ray diffraction microscopy (SXDM) measurements on an ambient-stable penta-twinned bipyramidal Au microcrystallite (about 1.36 mu m in length and 230 nm in diameter) stabilized in noncubic lattice, exhibiting catalytic properties. With more than 82% of the crystal volume, the majority crystallite structure is identified as body-centered orthorhombic (bco), while the remainder is the standard fcc. A careful analysis of the diffraction maps reveals that the tips are made up of fcc, while the body contains mainly bco with very high strain. The reported structural imaging technique of representative single crystallite will be useful to investigate the growth mechanism of similar multiphase nano- and micrometer-sized crystals.
引用
收藏
页码:9456 / 9465
页数:10
相关论文
共 36 条
[1]   Local Plasmonic Studies on Individual Core-Shell Gold-Silver and Pure Gold Nano-Bipyramids [J].
Arenal, Raul ;
Henrard, Luc ;
Roiban, Lucian ;
Ersen, Ovidiu ;
Burgin, Julien ;
Treguer-Delapierre, Mona .
JOURNAL OF PHYSICAL CHEMISTRY C, 2014, 118 (44) :25643-25650
[2]   The nature of the structural phase transition from the hexagonal (4H) phase to the cubic (3C) phase of silver [J].
Chakraborty, Indrani ;
Shirodkar, Sharmila N. ;
Gohil, Smita ;
Waghmare, Umesh V. ;
Ayyub, Pushan .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2014, 26 (11)
[3]   A stable, quasi-2D modification of silver: optical, electronic, vibrational and mechanical properties, and first principles calculations [J].
Chakraborty, Indrani ;
Shirodkar, Sharmila N. ;
Gohil, Smita ;
Waghmare, Umesh V. ;
Ayyub, Pushan .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2014, 26 (02)
[4]   Novel hexagonal polytypes of silver: growth, characterization and first-principles calculations [J].
Chakraborty, Indrani ;
Carvalho, Daniel ;
Shirodkar, Sharmila N. ;
Lahiri, Sandeep ;
Bhattacharyya, Somnath ;
Banerjee, Rajarshi ;
Waghmare, Umesh ;
Ayyub, Pushan .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2011, 23 (32)
[5]   Surface-stress-induced phase transformation in metal nanowires [J].
Diao, JK ;
Gall, K ;
Dunn, ML .
NATURE MATERIALS, 2003, 2 (10) :656-660
[6]   Noblest of all metals is structurally unstable at high pressure [J].
Dubrovinsky, L. ;
Dubrovinskaia, N. ;
Crichton, W. A. ;
Mikhaylushkin, A. S. ;
Simak, S. I. ;
Abrikosov, I. A. ;
de Almeida, J. S. ;
Ahuja, R. ;
Luo, W. ;
Johansson, B. .
PHYSICAL REVIEW LETTERS, 2007, 98 (04)
[7]   Stabilization of 4H hexagonal phase in gold nanoribbons [J].
Fan, Zhanxi ;
Bosman, Michel ;
Huang, Xiao ;
Huang, Ding ;
Yu, Yi ;
Ong, Khuong P. ;
Akimov, Yuriy A. ;
Wu, Lin ;
Li, Bing ;
Wu, Jumiati ;
Huang, Ying ;
Liu, Qing ;
Png, Ching Eng ;
Gan, Chee Lip ;
Yang, Peidong ;
Zhang, Hua .
NATURE COMMUNICATIONS, 2015, 6
[8]   Measuring Lattice Strain in Three Dimensions through Electron Microscopy [J].
Goris, Bart ;
De Beenhouwer, Jan ;
De Backer, Annick ;
Zanaga, Daniele ;
Batenburg, K. Joost ;
Sanchez-Iglesias, Ana ;
Liz-Marzan, Luis M. ;
Van Aert, Sandra ;
Bals, Sara ;
Sijbers, Jan ;
Van Tendeloo, Gustaaf .
NANO LETTERS, 2015, 15 (10) :6996-7001
[9]   Glancing-incidence focussed ion beam milling: A coherent X-ray diffraction study of 3D nano-scale lattice strains and crystal defects [J].
Hofmann, Felix ;
Harder, Ross J. ;
Liu, Wenjun ;
Liu, Yuzi ;
Robinson, Ian K. ;
Zayachuk, Yevhen .
ACTA MATERIALIA, 2018, 154 :113-123
[10]   Formation of Hexagonal-Close Packed (HCP) Rhodium as a Size Effect [J].
Huang, Jing Lu ;
Li, Zhi ;
Duan, Hao Hong ;
Cheng, Zhi Ying ;
Li, Ya Dong ;
Zhu, Jing ;
Yu, Rong .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2017, 139 (02) :575-578