Eun-Ji Gwak and Ju-Young Kim
Nano Lett., 2016, 16 (4), pp 2497–2502
Publication Date (Web): March 16, 2016 (Letter)
DOI: 10.1021/acs.nanolett.6b00062
High density of grain boundaries in solid materials generally leads to high strength because grain boundaries act as strong obstacles to dislocation activity. We find that the flexural strength of nanoporous gold of grain size 206 nm is 33.6% lower than ...
Mathew J. Cherukara, Timothy C. Germann, Edward M. Kober, and Alejandro Strachan
J. Phys. Chem. C, 2016, 120 (12), pp 6804–6813
Publication Date (Web): March 9, 2016 (Article)
DOI: 10.1021/acs.jpcc.5b11528
We use molecular dynamics simulations to characterize the chemical processes resulting from the shock compaction of a loosely packed granular reactive composite of Ni and Al. For all of the impact strengths studied (with piston velocities up in the range ...
Kazutoshi Miwa, Toyoto Sato, Motoaki Matsuo, Kazutaka Ikeda, Toshiya Otomo, Stefano Deledda, Bjørn C. Hauback, Guanqiao Li, Shigeyuki Takagi, and Shin-ichi Orimo
J. Phys. Chem. C, 2016, 120 (11), pp 5926–5931
Publication Date (Web): March 3, 2016 (Article)
DOI: 10.1021/acs.jpcc.6b00341
An intermediate phase LaMg2NiH4.6 found for the hydrogenation reaction of the ternary intermetallic compound LaMg2Ni to the complex transition-metal hydride LaMg2NiH7 has been investigated experimentally and theoretically. It is known that this reaction ...
Khachatur V. Manukyan, Christopher E. Shuck, Mathew J. Cherukara, Sergei Rouvimov, Dmitry Y. Kovalev, Alejandro Strachan, and Alexander S. Mukasyan
J. Phys. Chem. C, 2016, 120 (10), pp 5827–5838
Publication Date (Web): March 2, 2016 (Article)
DOI: 10.1021/acs.jpcc.6b00752
The synthesis of amorphous Ni (a-Ni) using a liquid-phase chemical reduction approach is reported. Detailed structural analysis indicates that this method allows for efficient fabrication of high surface area (210 m2/g) amorphous Ni nanopowder with low ...
Bruno Honrado Guerreiro, Manuel. H. Martin, Lionel Roué, and Daniel Guay
J. Phys. Chem. C, 2016, 120 (10), pp 5297–5307
Publication Date (Web): February 25, 2016 (Article)
DOI: 10.1021/acs.jpcc.5b10711
Palladium–copper–gold (PdCuAu) ternary alloy membranes are promising alternatives to pure palladium for the purpose of hydrogen separation processes. In the current work, PdCuAu ternary alloys were prepared by magnetron cosputtering deposition. All as-...
Parasmani Rajput, Ajay Gupta, Satish Potdar, and Jörg Zegenhagen
J. Phys. Chem. C, Articles ASAP (As Soon As Publishable)
Publication Date (Web): February 25, 2016 (Article)
DOI: 10.1021/acs.jpcc.5b12446
X-ray reflectivity and spectroscopy, voltammetry, and scanning probe microscopy were used to investigate the dealloying of CuxAu (with x ≈ 4) below the critical potential. We studied ultrathin films deposited on oxidized silicon wafers with a thickness of ...
Chaoren Liu, Eloi Pineda, Jichao Qiao, and Daniel Crespo
J. Phys. Chem. B, 2016, 120 (10), pp 2838–2844
Publication Date (Web): February 25, 2016 (Article)
DOI: 10.1021/acs.jpcb.5b11754
We study the mechanical relaxation spectrum of Pd42.5Ni7.5Cu30P20 metallic glass. The effect of aging on the relaxation behavior is analyzed by measuring the internal friction during consecutive heating runs. The mechanical relaxation of the well-annealed ...
Nicholas V. Sarlis and Efthimios S. Skordas
J. Phys. Chem. A, 2016, 120 (9), pp 1601–1604
Publication Date (Web): February 18, 2016 (Article)
DOI: 10.1021/acs.jpca.6b00846
Several fcc- and hcp-structured Ir–Os alloys have been recently studied up to 30 GPa at room temperature by means of synchrotron-based X-ray powder diffraction in diamond anvil cells. Using their bulk moduli, which increase with increasing osmium content, ...
Yong-Ho Ko, Jong-Dae Lee, Taeshik Yoon, Chang-Woo Lee, and Taek-Soo Kim
ACS Appl. Mater. Interfaces, 2016, 8 (8), pp 5679–5686
Publication Date (Web): February 9, 2016 (Research Article)
DOI: 10.1021/acsami.5b11903
The immoderate growth of intermetallic compounds (IMCs) formed at the interface of a solder metal and the substrate during soldering can degrade the mechanical properties and reliability of a solder joint in electronic packaging. Therefore, it is critical ...
Chengping Wu and Leonid V. Zhigilei
J. Phys. Chem. C, 2016, 120 (8), pp 4438–4447
Publication Date (Web): February 8, 2016 (Article)
DOI: 10.1021/acs.jpcc.6b00013
Short pulse laser irradiation of metal targets can trigger a cascade of highly nonequilibrium processes leading to the formation of unique surface structures of interest to various practical applications. In this paper, we report the results of a large-...
Rubén Mendoza-Cruz, Lourdes Bazán-Díaz, J. Jesús Velázquez-Salazar, Germán Plascencia-Villa, Daniel Bahena-Uribe, José Reyes-Gasga, David Romeu, Grégory Guisbiers, Raúl Herrera-Becerra, and Miguel José-Yacamán
Nano Lett., 2016, 16 (3), pp 1568–1573
Publication Date (Web): February 5, 2016 (Letter)
DOI: 10.1021/acs.nanolett.5b04184
In this work, we report the synthesis and detailed structural characterization of novel helical gold–copper nanowires. The nanowires possess the Boerdijk–Coxeter–Bernal structure, based on the pile up of octahedral, icosahedral, and/or decahedral seeds. ...
Lu Wang, Guo-Hua Zhang, Jing-Song Wang, and Kuo-Chih Chou
J. Phys. Chem. C, 2016, 120 (7), pp 4097–4103
Publication Date (Web): January 26, 2016 (Article)
DOI: 10.1021/acs.jpcc.5b11394
In the present study, the hydrogen reduction of ultrafine MoO2 to produce ultrafine Mo powders has been carried out. It is found that ultrafine spherical Mo powders can be obtained when the reaction temperature is above 923 K, and the reduction reaction ...
Andriy Yakymovych, George Kaptay, Ali Roshanghias, Hans Flandorfer, and Herbert Ipser
J. Phys. Chem. C, 2016, 120 (3), pp 1881–1890
Publication Date (Web): January 20, 2016 (Article)
DOI: 10.1021/acs.jpcc.5b09445
Heat effects for the addition of Co in bulk and nanosized forms into the liquid Sn-3.8Ag-0.7Cu alloy were studied using drop calorimetry at four temperatures between 673 and 1173 K. Significant differences in the heat effects between nano and bulk Co ...
Udumula Subbarao, Sudhindra Rayaprol, Rebecca Dally, Michael J. Graf, and Sebastian C. Peter
Inorg. Chem., 2016, 55 (2), pp 666–675
Publication Date (Web): December 30, 2015 (Article)
DOI: 10.1021/acs.inorgchem.5b02023
The compounds RECuGa3 (RE = La–Nd, Sm–Gd) were synthesized by various techniques. Preliminary X-ray diffraction (XRD) analyses at room temperature suggested that the compounds crystallize in the tetragonal system with either the centrosymmetric space ...
The swinging symmetry between non-centrosymmetric BaNiSn3 and centrosymmetric BaAl4 structure types in the compounds RECuGa3 (RE = La−Nd, Sm−Gd) at room temperature has been established with the help of detailed diffraction studies. The compounds show temperature-dependent multiple structural phase transitions from BaNiSn3 (space group I4mm) to Rb5Hg19 type (space group I4/m) above 400 K followed by another transition to the Cu3Au structure type (space group Pm3̅m) above 700 K.
Lauren E. Marbella, Daniel M. Chevrier, Peter D. Tancini, Olabobola Shobayo, Ashley M. Smith, Kathryn A. Johnston, Christopher M. Andolina, Peng Zhang, Giannis Mpourmpakis, and Jill E. Millstone
J. Am. Chem. Soc., 2015, 137 (50), pp 15852–15858
Publication Date (Web): December 15, 2015 (Article)
DOI: 10.1021/jacs.5b10124
We report the identification, description, and role of multinuclear metal–thiolate complexes in aqueous Au–Cu nanoparticle syntheses. The structure of these species was characterized by nuclear magnetic resonance spectroscopy, mass spectrometry, X-ray ...
Lifeng Liu, Xiangdong Ding, Jun Sun, Suzhi Li, and Ekhard K. H. Salje
Nano Lett., 2016, 16 (1), pp 194–198
Publication Date (Web): December 11, 2015 (Letter)
DOI: 10.1021/acs.nanolett.5b03483
Bent Cu–Al–Ni nanopillars (diameters 90–750 nm) show a shape memory effect, SME, for diameters D > 300 nm. The SME and the associated twinning are located in a small deformed section of the nanopillar. Thick nanopillars (D > 300 nm) transform to austenite ...
Rie T. Fredrickson, Yiming Guo, and Daniel C. Fredrickson
J. Am. Chem. Soc., 2016, 138 (1), pp 248–256
Publication Date (Web): December 7, 2015 (Article)
DOI: 10.1021/jacs.5b10355
The concept of frustration between competing geometrical or bonding motifs is frequently evoked in explaining complex phenomena in the structures and properties of materials. This idea is of particular importance for metallic systems, where frustration ...
Peng Wang, Dun Zhang, Zhou Lu, and Shimei Sun
ACS Appl. Mater. Interfaces, 2016, 8 (2), pp 1120–1127
Publication Date (Web): November 30, 2015 (Research Article)
DOI: 10.1021/acsami.5b08452
Microbially influenced corrosion (MIC) accelerates the failure of metal in a marine environment. In this research, slippery lubricant-infused porous surface (SLIPS) was designed on aluminum, and its great potential for inhibiting MIC induced by sulfate-...
Xiaowei Li, Peng Guo, Lili Sun, Aiying Wang, and Peiling Ke
ACS Appl. Mater. Interfaces, 2015, 7 (50), pp 27878–27884
Publication Date (Web): November 27, 2015 (Research Article)
DOI: 10.1021/acsami.5b09774
Amorphous carbon films (a-C) codoped by two metal elements exhibit the desirable combination of tribological and mechanical properties for widely potential applications, but are also prone to catastrophic failure due to the inevitable residual compressive ...
Grégory Guisbiers, Rubén Mendoza-Cruz, Lourdes Bazán-Díaz, J. Jesús Velázquez-Salazar, Rafael Mendoza-Perez, José Antonio Robledo-Torres, José-Luis Rodriguez-Lopez, Juan Martín Montejano-Carrizales, Robert L. Whetten, and Miguel José-Yacamán
ACS Nano, 2016, 10 (1), pp 188–198
Publication Date (Web): November 25, 2015 (Article)
DOI: 10.1021/acsnano.5b05755
The alloy Au–Ag system is an important noble bimetallic phase, both historically (as “Electrum”) and now especially in nanotechnology, as it is applied in catalysis and nanomedicine. To comprehend the structural characteristics and the thermodynamic ...
