Zobrazeno 1 - 10
of 5 360
pro vyhledávání: '"xas"'
Autor:
Joshua D. Elliott, Victor Rogalev, Nigel Wilson, Mihai Duta, Christopher J. Reynolds, Jacob Filik, Thomas J. Penfold, Sofia Diaz-Moreno
Publikováno v:
Journal of Synchrotron Radiation, Vol 31, Iss 5, Pp 1276-1284 (2024)
Accurate analysis of the rich information contained within X-ray spectra usually calls for detailed electronic structure theory simulations. However, density functional theory (DFT), time-dependent DFT and many-body perturbation theory calculations i
Externí odkaz:
https://doaj.org/article/f677fd44ae614bcda7f5f51e7c417129
Autor:
Andrea Martini, Janis Timoshenko, Martina Rüscher, Dorottya Hursán, Mariana C. O. Monteiro, Eric Liberra, Beatriz Roldan Cuenya
Publikováno v:
Journal of Synchrotron Radiation, Vol 31, Iss 4, Pp 741-750 (2024)
Transition-metal nitrogen-doped carbons (TM-N-C) are emerging as a highly promising catalyst class for several important electrocatalytic processes, including the electrocatalytic CO2 reduction reaction (CO2RR). The unique local environment around th
Externí odkaz:
https://doaj.org/article/3bb0c0c0ede141ea8d5384f8440f9109
Publikováno v:
SPE Polymers, Vol 5, Iss 3, Pp 293-305 (2024)
Abstract The local interaction within poly(vinylidene fluoride)/poly(3,4‐ethyelenedioxythiophene):poly(styrelenesulfonate) (PVDF/PEDOT:PSS) composite films has been explored in this study. Vibrational and impedance spectroscopy were used extensivel
Externí odkaz:
https://doaj.org/article/fa316a0ba2294115a1beb52d63b98330
Autor:
Belén Bachiller-Baeza, João Elias F.S. Rodrigues, Maricarmen Capel-Sanchez, Javier Gainza, Victoria E. García-Sánchez, Ignacio J. Villar-García, Virginia Perez-Dieste, Carlo Marini, M. Teresa Fernández-Diaz, José A. Alonso, Consuelo Álvarez-Galván
Publikováno v:
Journal of CO2 Utilization, Vol 89, Iss , Pp 102969- (2024)
In this work, key factors that affect catalytic activity of Ni/La-doped ceria catalysts for the reverse water gas shift reaction (RWGS) have been revealed by applying in situ advanced synchrotron techniques, such as X-ray Absorption Spectroscopy (XAS
Externí odkaz:
https://doaj.org/article/d2835d639b4b413f8c98839eb8f5ec54
The role of sodium in the electrochemical tuning of Li2TiSiO5 anodes across ceramic and glass phases
Autor:
Awadol Khejonrak, Amorntep Montreeuppathum, Sumeth Siriroj, Jintara Padchasri, Sarawut Pasee, Narong Chanlek, Soorathep Kheawhom, Pinit Kidkhunthod
Publikováno v:
Heliyon, Vol 10, Iss 20, Pp e39410- (2024)
This study investigates the enhancement of Li2TiSiO5 anode material through Na doping via two routes: melt-quenching (route I) and subsequent heat treatment (route II). A 5 % Na-doped ceramic sample significantly improves Li-ion mobility and discharg
Externí odkaz:
https://doaj.org/article/93fd2fd3dd5942d381ef4f14d65da023
Publikováno v:
IUCrJ, Vol 11, Iss 3, Pp 325-346 (2024)
An X-ray absorption spectroscopy (XAS) electrochemical cell was used to collect high-quality XAS measurements of N-truncated Cu:amyloid-β (Cu:Aβ) samples under near-physiological conditions. N-truncated Cu:Aβ peptide complexes contribute to oxidat
Externí odkaz:
https://doaj.org/article/e8c4cc04563b4456be2bdc1ee3d686af
Autor:
Davide Menga, Yan‐Sheng Li, Ana Marija Damjanović, Olivier Proux, Friedrich E. Wagner, Tim‐Patrick Fellinger, Hubert A. Gasteiger, Michele Piana
Publikováno v:
ChemElectroChem, Vol 11, Iss 18, Pp n/a-n/a (2024)
Abstract The stability of Fe−N−C oxygen reduction reaction (ORR) electrocatalysts has been considered a primary challenge for their practical application in proton exchange membrane fuel cells (PEMFCs). While several studies have attempted to rev
Externí odkaz:
https://doaj.org/article/f5242a6c30f745e0b69d48a897265b2f
Autor:
Dinesh Bhalothia, Che Yan, Nozomu Hiraoka, Hirofumi Ishii, Yen‑Fa Liao, Sheng Dai, Po‐Chun Chen, Tsan‐Yao Chen
Publikováno v:
Advanced Science, Vol 11, Iss 33, Pp n/a-n/a (2024)
Abstract A ternary catalyst comprising Iridium (Ir) single‐atoms (SA)s decorated on the Co‐oxide supported palladium (Pd) nanoparticles (denoted as CPI‐SA) is developed in this work. The CPI‐SA with 1 wt.% of Ir exhibits unprecedented high ma
Externí odkaz:
https://doaj.org/article/b6b65176b9ff4dcd956d22d4752d5c67
Autor:
M. Oñoro, E. Salas-Colera, S.R. Parnell, V. Martin-Diaconesu, D. Alba Venero, T. Leguey, V. de Castro, M.A. Auger
Publikováno v:
Nuclear Materials and Energy, Vol 40, Iss , Pp 101713- (2024)
In this work, Zr addition is proposed to refine the nanoparticle dispersion in an ODS RAF steel of composition Fe-14Cr-2W-0.3Zr-0.24Y (wt.%). Three batches of material are obtained using pre-alloyed atomized powder, where yttrium is directly introduc
Externí odkaz:
https://doaj.org/article/8648eca987d74fc4b4628bb989521eef
Autor:
A. Afiqah-Idrus, G. Abdulkareem-Alsultan, N. Asikin-Mijan, Maadh Fawzi Nassar, Lee Voon, Siow Hwa Teo, Tonni Agustiono Kurniawan, Nur Athirah Adzahar, M. Surahim, Siti Zulaika Razali, Aminul Islam, Robiah Yunus, Noor Alomari, Yun Hin Taufiq-Yap
Publikováno v:
Energy Conversion and Management: X, Vol 23, Iss , Pp 100589- (2024)
Activated carbon (AC) supported catalysts have been extensively applied as deoxygenation (DO) catalysts. However, the details of in situ experimental investigations that relevant to this catalyst are limited. Hereby, we present a series of operando/i
Externí odkaz:
https://doaj.org/article/7d65404192fb43a1a9f93de152fd9ce3