Results 31 to 40 of about 48,008 (267)

Experimental study on the extraction of aluminum and iron from coal gangue by thermal activation and acid leaching method

能源环境保护
A massive amount of coal gangue (an accompanying solid waste) is produced during coal mining and washing processes, leading not only to the wastage of land resources but also to environmental impacts.
Youzhong ZHANG, Min CHE, Yiqing LIU, Ziyan CHE, Yongsheng FU   +4 more
doaj   +1 more source

Investigation of the leaching behavior of Na and Si in simulated HLW borosilicate glass obtained from the waste of a 1000 MWe class PWR reactor: using the response surface method

Frontiers in Chemistry
The immobilization of high-level nuclear waste (HLW) in glass waste matrices provides the key safety function of slowing down radionuclide emissions from an underground disposal site.
Mohammad Hosseinpour Khanmiri, Mohammad Hosseinpour Khanmiri, Ali Yadollahi, Mohammad Samadfam, Hamid Sepehrian, Mohammad Outokesh   +5 more
doaj   +1 more source

A New Process of Extracting Titanium from Vanadium–Titanium Magnetite

Crystals, 2021
A new process of extracting titanium from vanadium–titanium magnetite (VTM) in the Panxi area in Sichuan, China is introduced in this work. Various experiments, including reduction–magnetic separation, leaching and hydrolyzing experiments, are carried ...
Yandong Li, Shuangyin Chen, Huamei Duan
doaj   +1 more source

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

Advanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu, Jun Xu, Minmin Fan, Jingcheng Xu, Mengyuan Li, Yun Gong, Weiwei Yang, Lei Li, Yong Zhou, Deqiang Zhao, Yuhua Xue, Xingtao Xu, Chang Q. Sun, Liming Dai   +13 more
wiley   +1 more source

Selective sulfuric acid cyclic leaching of vanadium from the calcification roasting pellets of vanadium titanomagnetite

Journal of Materials Research and Technology, 2023
Here, a new method of sulfuric acid cyclic leaching was proposed to selectively leach vanadium from the calcification roasting pellets of vanadium titanomagnetite. Cyclic leaching and conventional heap leaching were compared.
Zhixiang Wang, Zhonghui Peng, Yang Li, Yongze Zhu, Keqiang Xie   +4 more
doaj   +1 more source

Self‐Sintering Ionogel Binder for Flexible, Recyclable, and Healable Printed Giant Magnetoresistive Sensors

Advanced Functional Materials, EarlyView.
ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo, Xiaotao Wang, Guannan Mu, Proloy Taran Das, Igor Veremchuk, Conrad Schubert, Aaron D. Cross, Yevhen Zabila, Xuan Peng, Larysa Baraban, Denys Makarov   +10 more
wiley   +1 more source

Effect of ZnO in borosilicate solidification glass on Mo leaching rate in simulated high-level radioactive waste and its model prediction

He jishu
BackgroundMo leaching rate is one of the key product properties for high molybdenum radioactive waste vitrification. Furthermore, soluble molybdenum yellow phase is easy to precipitate, resulting in the enhancement of Mo leaching.
DONG Hailong, DAI Chen, LI Zhongdi, CHEN Shubin, FAN Sijun, ZHANG Liyan   +5 more
doaj   +1 more source

Support‐Controlled Reaction Pathways via Dynamic Sulfur‐Mediated Interfaces for Selective Urea Electrolysis

Advanced Functional Materials, EarlyView.
Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler, Lucía Vizcaíno‐Anaya, Ahmad Tayyebi, José Manuel Vila‐Fungueiriño, María del Carmen Giménez‐López   +4 more
wiley   +1 more source

Magnesium‐Based Transient Bioelectronics, Bio‐Optics and Bio‐Scaffolds

Advanced Functional Materials, EarlyView.
This paper reviews the state of the art and recent advances in magnesium‐based thin‐film, foils, and scaffolds for applications in transient bio‐optics, bioelectronics and tissue engineering. The design principles, fabrication methods, material properties, and integration strategies are discussed in detail.
Massimo Mariello, Yves Leterrier
wiley   +1 more source

Vanadium Extraction from a Vanadium-bearing Stone Coal in Shanyang

Kuangchan zonghe liyong
In this article, vanadium is extracted from a vanadium-bearing stone coal in Shanyang by the process of melt-roasting-water leaching. The experimental roasting and leaching conditions were optimized, including sodium peroxide dosage, roasting time ...
Yimeng WANG, Na LI, Xueer HE, Huiyun LEI
doaj   +1 more source