13 citations · 15 across the 9 of their papers we have counts for
9 papers
3D atomistic imaging of polymer nanocomposites with Atom Probe Tomography: experimental methodology, preliminary results and future outlook
James O. Douglas, Reza Salehiyan, Aparna Saksena +5
The use of polymer nanocomposites as gas barrier materials has seen increasing interest, including applications involving hydrogen transport and storage. Better understanding of ga…
Is Platinum a Proton Blocking Catalyst?
Aparna Saksena, Yujun Zhao, J. Manoj Prabhakar +3
Platinum, to date, is the most widely applied electrocatalyst for hydrogen evolution reaction (HER) in acidic media. It is assumed to be a proton-blocking catalyst with only surfac…
Effect of crystallographic texture on dealloying kinetics and composition of nanoporous gold surface
Ezgi Hatipoğlu, Ayman A. El-Zoka, Yujun Zhao +4
Nanoporous metals allow for tailoring composition and surface-to-volume ratio, both aspects critical for applications in catalysis. Here, Ag70Au30 (2 at. %) films with a face-cente…
Grain boundaries control lithiation of solid solution substrates in lithium metal batteries
Leonardo Shoji Aota, Chanwon Jung, Siyuan Zhang +9
The development of sustainable transportation and communication systems requires an increase in both energy density and capacity retention of Li-batteries. Using substrates forming…
Towards establishing best practice in the analysis of hydrogen and deuterium by atom probe tomography
Baptiste Gault, Aparna Saksena, Xavier Sauvage +42
As hydrogen is touted as a key player in the decarbonization of modern society, it is critical to enable quantitative H analysis at high spatial resolution, if possible at the atom…
3D deep learning for enhanced atom probe tomography analysis of nanoscale microstructures
Jiwei Yu, Zhangwei Wang, Aparna Saksena +8
Quantitative analysis of microstructural features on the nanoscale, including precipitates, local chemical orderings (LCOs) or structural defects (e.g. stacking faults) plays a piv…
On the role of Grain Boundary Character in the Stress Corrosion Cracking of Nanoporous Gold Thin Films
Aparna Saksena, Ayman El-Zoka, Alaukik Saxena +3
For its potential as a catalyst, nanoporous gold (NPG) prepared through dealloying of bulk Ag-Au alloys has been extensively investigated. NPG thin films can offer ease of handling…
Nanoporous gold thin films as substrates to analyze liquids by cryo-atom probe tomography
E. V. Woods, A. Saksena, A. A. El-Zoka +7
Cryogenic atom probe tomography (cryo-APT) is being developed to enable nanoscale compositional analyses of frozen liquids. Yet, the availability of readily available substrates th…
Optimizing site-specific specimen preparation for Atom Probe Tomography by using hydrogen for visualizing radiation-induced damage
Aparna Saksena, Binhan Sun, Xizhen Dong +3
Atom probe tomography (APT) is extensively used to measure the local chemistry of materials. Site-specific preparation via a focused ion beam (FIB) is routinely implemented to fabr…