Results 41 to 50 of about 100,907 (307)

Stability of iron-bearing carbonates in the deep Earth’s interior

Nature Communications, 2017
Carbonates are shown to exist in the lower mantle as seen in diamond inclusions, but thermodynamic constraints are poorly understood. Here, the authors synthesise two new iron carbonate compounds and find that self-oxidation-reduction reactions can ...
Valerio Cerantola, Elena Bykova, Ilya Kupenko, Marco Merlini, Leyla Ismailova, Catherine McCammon, Maxim Bykov, Alexandr I. Chumakov, Sylvain Petitgirard, Innokenty Kantor, Volodymyr Svitlyk, Jeroen Jacobs, Michael Hanfland, Mohamed Mezouar, Clemens Prescher, Rudolf Rüffer, Vitali B. Prakapenka, Leonid Dubrovinsky   +17 more
doaj   +1 more source

1.8 V Aqueous Symmetric Carbon-Based Supercapacitors with Agarose-Bound Activated Carbons in an Acidic Electrolyte

Nanomaterials, 2021
The specific energy of an aqueous carbon supercapacitor is generally small, resulting mainly from a narrow potential window of aqueous electrolytes.
Chih-Chung Lai, Feng-Hao Hsu, Su-Yang Hsu, Ming-Jay Deng, Kueih-Tzu Lu, Jin-Ming Chen   +5 more
doaj   +1 more source

Demonstration of a Gandolfi-type attachment for fast high-resolution synchrotron XRD of non-ideal specimens

Scientific Reports
Synchrotron powder X-ray diffraction (PXRD) offers significant advantages in the structural analysis of functional materials and enables the acquisition of high-quality data; however, accurate data collection remains challenging for samples consisting of
Shintaro Kobayashi, Shogo Kawaguchi, Yuki Mori, Kei Watanabe, Michitaka Takemoto   +4 more
doaj   +1 more source

In-situ spectroscopic observation of dynamic-coupling oxygen on atomically dispersed iridium electrocatalyst for acidic water oxidation

Nature Communications, 2021
Uncovering the dynamics of active sites in the working conditions is important yet challenging. Here the authors identify dynamic-coupling oxygen on atomically dispersed iridium sites during oxygen evolution reaction using in situ techniques.
Hui Su, Wanlin Zhou, Wu Zhou, Yuanli Li, Lirong Zheng, Hui Zhang, Meihuan Liu, Xiuxiu Zhang, Xuan Sun, Yanzhi Xu, Fengchun Hu, Jing Zhang, Tiandou Hu, Qinghua Liu, Shiqiang Wei   +14 more
doaj   +1 more source

Capacity Deterioration Analysis of Li-ion Battery Cathode Li[Ni1/3Co1/3Mn1/3]O2 Material by Soft X-ray Absorption Spectroscopy

Electrochemistry, 2021
We report detailed studies of capacity deterioration mechanism of Li[Ni1/3Co1/3Mn1/3]O2 (NCM) cathode after several numbers of cycling with the voltage range of 3.0–4.1 V/cell at 85 °C and after storage at charged states (3.7, 4.0 and 4.1 V/cell) at 70 ...
Tetsuo NAGAMI, Toyokazu NOMOTO, Harue SUGIYAMA, Shoji TACHIKI, Ren SAKAMOTO, Toshiaki OHTA   +5 more
doaj   +1 more source

Stanford Synchrotron Radiation Laboratory 1991 activity report. Facility developments January 1991--March 1992 [PDF]

, 1992
SSRL is a national facility supported primarily by the Department of Energy for the utilization of synchrotron radiation for basic and applied research in the natural sciences and engineering.
Cantwell, K., St. Pierre, M.
core   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

Intrinsic room-temperature ferromagnetism in a two-dimensional semiconducting metal-organic framework

Nature Communications, 2023
The development of two-dimensional (2D) magnetic semiconductors with room-temperature ferromagnetism is a significant challenge in materials science and is important for the development of next-generation spintronic devices. Herein, we demonstrate that a
Sihua Feng, Hengli Duan, Hao Tan, Fengchun Hu, Chaocheng Liu, Yao Wang, Zhi Li, Liang Cai, Yuyang Cao, Chao Wang, Zeming Qi, Li Song, Xuguang Liu, Zhihu Sun, Wensheng Yan   +14 more
doaj   +1 more source

Measurements of the time-jitter of coherent terahertz synchrotron radiation with a superconducting detector [PDF]

, 2012
We have applied an ultrafast superconducting YBa2Cu3O7-δ (YBCO) detector to study the time jitter of the propagating electron bunches in a synchrotron. The jitter was determined from the coherent terahertz (THz) synchrotron radiation (CSR)
Hoehl, Arne, Pohl, Andreas, Ulm, Gerhard, Müller, Ralph, Feikes, Jörg, Hofherr, Matthias, Semenov, Alexej, Wüstefeld, Godehard, Hübers, Heinz-Wilhelm, Scheuring, Alexander, Probst, Petra, Ilin, Konstantin, Ries, Markus, Wünsch, Stefan   +13 more
core  

Stanford Synchrotron Radiation Laboratory activity report for 1986 [PDF]

, 1987
1986 was another year of major advances for SSRL as the ultimate capabilities of PEP as a synchrotron radiation source became more apparent and a second PEP beam line was initiated, while effective development and utilization of SPEAR proceeded.
Cantwell, K.
core   +1 more source