Results 131 to 140 of about 7,787,436 (340)

Review of trace toxic elements (Pb, Cd, Hg, As, Sb, Bi, Se, Te) and their deportment in gold processing. Part 1: Mineralogy, aqueous chemistry and toxicity [PDF]

, 2011
A literature review on the deportment of trace toxic elements (Pb, Cd, Hg, As, Sb, Bi, Se, and Te) in gold processing by cyanidation is presented which compiles the current knowledge in this area and highlights the gaps.
Breuer, P.L., Bunney, K.G., Kyle, J.H., May, P.M., Pleysier, R.   +4 more
core   +2 more sources

Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration

Advanced Functional Materials, EarlyView.
Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley   +1 more source

An optofluidic planar microreactor for photocatalytic reduction of CO2 in alkaline environment

, 2017
The development of highly efficient photocatalytic reactor is of importance to improve the performance of the photocatalytic reduction of CO2. In this work, an optofluidic planar microreactor is designed and fabricated for the photocatalytic reduction of
Xiao-yao Cheng, Rong Chen, Xun Zhu, Q. Liao, L. An, Dingding Ye, Xuefeng He, Shuzhe Li, Lin Li   +8 more
semanticscholar   +1 more source

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

Advanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa, Lin‐Ding Yuan, Stephen D. Wilson, James M. Rondinelli   +3 more
wiley   +1 more source

Comparative study of natural and accelerated ageing of basalt fibres under alkaline and mildly acidic conditions

Case Studies in Construction Materials
This paper investigates the durability of basalt fibres (BF) in a model environment of synthetic pore solutions of ordinary Portland cement, alkaline environment, and magnesium phosphate cement (MPC), mildly acidic environment, under natural (21 ± 2°C ...
Branka Mrduljaš, Kristina Ana Škreb, Ana Baričević, Marijana Pavunc Samaržija, Edita Vujasinović   +4 more
doaj   +1 more source

Study on the Deterioration Mechanism of Magnesium Oxychloride Cement under an Alkaline Environment. [PDF]

Materials (Basel), 2023
An L, Chang C, Yan F, Peng J.
europepmc   +1 more source

Isolation of obligately alkaliphilic magnetotactic bacteria from extremely alkaline environments

Environmental Microbiology, 2011
Summary Large numbers of magnetotactic bacteria were discovered in mud and water samples collected from a number of highly alkaline aquatic environments with pH values of ∼ 9.5. These bacteria were helical in morphology and biomineralized chains of bullet‐shaped crystals of magnetite and were present in all the ...
Lefevre, Christopher T., Frankel, Richard B., Pósfai, Mihály, Prozorov, Tanya, Bazylinski, Dennis A.   +4 more
openaire   +4 more sources

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

3D‐Printed Porous Hydroxyapatite Formed via Enzymatic Mineralization

Advanced Functional Materials, EarlyView.
Bone combines lightness, strength, and the ability to heal, inspiring new materials design. This work introduces a room‐temperature, enzyme‐mediated 3D printing method to create porous hydroxyapatite scaffolds. The process avoids energy‐intensive sintering, preserves bioactivity, and allows control over porosity and mineralization.
Francesca Bono, Anna Puiggalí‐Jou, Greta Cocchi, Mariangela Miccoli, Katharina Maniura‐Weber, Marcy Zenobi‐Wong, Esther Amstad   +6 more
wiley   +1 more source

Dopant Evolution in Electrocatalysts after Hydrogen Oxidation Reaction in an Alkaline Environment. [PDF]

ACS Energy Lett, 2023
Yoo SH, Aota LS, Shin S, El-Zoka AA, Kang PW, Lee Y, Lee H, Kim SH, Gault B.   +8 more
europepmc   +1 more source