Results 41 to 50 of about 3,656,066 (246)

ABCABC Stacking‐Enabled Non‐Centrosymmetry 3R‐ZnIn2S4 Nanosheets for Piezocatalytic Uranium Extraction

Advanced Science, EarlyView.
The ABCABC stacking sequence in 2D ZnIn2S4 nanosheets creates intrinsic non‐centrosymmetry, enabling robust piezocatalysis under weak mechanical agitation. The nanosheets achieve a H2O2 yield of 276.7 µmol g−1 h−1 and uranium extraction capacity of 763.2 mg g−1 via a dual mechanism of direct piezoreduction and in situ H2O2 complexation.
Song Li, Huaijuan Zhou, Yingting Yang, Yanhong Lv, Zdeněk Sofer, Jianyun Zheng, Jinhua Li   +6 more
wiley   +1 more source

A review on functionalization strategies of graphene oxide hydrogels for uranium extraction and machine learning insights

Discover Chemistry
The sustainable use of nuclear fuel and the cleanup of contaminated water sources necessitate the efficient recovery of uranium from aqueous sources.
Katikala Abhishek Anil, Riddhi Kantesaria, Himanshu Sekhar Panda   +2 more
doaj   +1 more source

Multi-electron Transfer by U(ɪɪ) and Masked U(ɪɪ) Complexes

CHIMIA, 2022
Complexes of uranium in low oxidation state have shown the ability of activating non-reactive small molecules such as N2. However, the multi-electron transfer required for such activation, remains limited in uranium chemistry. Here, we review our recent
Dieuwertje K. Modder, Marinella Mazzanti
doaj   +1 more source

Metal oxide aerogels: Preparation and application for the uranium removal from aqueous solution.

Science of the Total Environment, 2020
The low density CeO2, Pr2O3 and Nd2O3 aerogels were synthesized by a novel solution-freeze-drying-calcination route. The bulk densities of the CeO2, Pr2O3 and Nd2O3 aerogels were calculated to be 8.10, 10.67 and 9.80 mg/cm3, respectively.
Jun Liao, Ping Liu, Ying Xie, Yong Zhang
semanticscholar   +1 more source

Metal‐Half‐Salen Chemistry for One‐Pot Mineralization on Hydrophobic Polymer Membranes

Advanced Science, EarlyView.
Here we report a versatile one‐pot synthetic strategy for organic–inorganic composite membranes, which leverages a metal half‐Salen system to precisely govern the competing kinetics of coordination and hydrolysis. In contrast to conventional two‐step metal‐phenol chemistries, our integrated approach substantially simplifies the fabrication process ...
Rou‐Ming Wen, Hao Ye, Ming‐Bang Wu, Lu‐Lin Ma, Qi‐Hui Ye, Zi‐Hao Yuan, Yi Xie, Juming Yao, Hao‐Cheng Yang   +8 more
wiley   +1 more source

Application of Automatic Mineral Analysis Technology to Identify Minerals and Occurrences of Elements in Sandstone-type Uranium Deposits in the Ordos Basin

Yankuang ceshi, 2021
BACKGROUND The Ordos Basin is one of the most important areas in China because it hosts lots of sandstone-type uranium deposits and a variety of other energy and mineral resources.
ZHANG Ran, YE Li-juan, DANG Fei-peng, XIAO Zhi-bin, BI Jun-hui, ZHOU Jing, GUO Hu, XU Ya-wen, GENG Jian-zhen, ZHOU Hong-ying   +9 more
doaj   +1 more source

SYNTHESIS OF URANIUM OXIDE NANOCLUSTERS ON THE SURFACE OF OXIDIZED ALUMINUM [PDF]

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2013
Deposition of the products from photocondensation of acetone and uranium on the surface of oxidized aluminum with the use of hydrogen peroxide has been studied by the methods of electronic and IR absorption.
А.P. Zajogin, D.S. Umriko, Е.V. Vileishikova, А.I. Komyak, S.D. Umreiko   +4 more
doaj  

Covalency in oxidized uranium

Physical Review B, 2015
Using x-ray emission spectroscopy and absorption spectroscopy, it has been possible to directly access the states in the unoccupied conduction bands that are involved with $5f$ and $6d$ covalency in oxidized uranium. By varying the oxidizing agent, the degree of $5f$ covalency can be manipulated and monitored, clearly and irrevocably establishing the ...
Tobin, JG, Yu, S-W, Qiao, R, Yang, WL, Booth, CH, Shuh, DK, Duffin, AM, Sokaras, D, Nordlund, D, Weng, T-C   +9 more
openaire   +4 more sources

Numerical simulation of oxidative corrosion of metallic uranium in a confined environment with a validation through existing experimental data

Journal of Materials Research and Technology
As an energy source and strategic material, uranium usually needs to be stored in a confined environment for long periods of time. Due to its active chemical nature, uranium will inevitably corrode, thus affecting its performance.
Mengxian Xiang, Weiquan Liang, Ning Ma, Sizhi Zuo-Jiang, Xuzhou Jiang, Hongying Yu, Dongbai Sun   +6 more
doaj   +1 more source

Leaching Process of Uranium in Waste Residue by Chloride Roasting

Yuanzineng kexue jishu, 2023
For a uranium purification enterprise in the south of China, the waste residue (uranium grade 12000%), which is a mixture of rubble from the extraction in the purification system and other wastewater passing through the plate and frame after resting ...
FAN Shiyao;ZHANG Cong;LEI Zhiwu;HU Eming;WANG Hongqiang;HAO Xuanzhang;HU Fang;WANG Qingliang
doaj