Results 81 to 90 of about 75,132 (265)

The Role of E-Waste in Sustainable Mineral Resource Management

Waste
This paper analyses the role of electronic waste (E-waste) as a secondary source of critical and precious minerals, addressing the challenges and opportunities in transitioning towards a circular economy (CE) for electronics.
Dina Mohamed, Adham Fayad, Abdel-Mohsen O. Mohamed, Moza T. Al Nahyan   +3 more
doaj   +1 more source

Defect‐Driven Charge Separation in Ba‐Doped SrTiO3: Correlating Photoelectrochemical Performance With Dye‐Selective Photocatalysis

Advanced Materials Interfaces, EarlyView.
Ba‐doped SrTiO3 perovskites establish a direct correlation between photoelectrochemical activity and photocatalytic performance. Optimized Ba0.5Sr0.5TiO3 exhibits enhanced charge separation, photocurrent generation, and visible‐light‐driven dye degradation through defect‐induced oxygen vacancies and lattice distortion.
Sagar A. Nikam, Somnath Ladhane, Vikas P. Mhaske, Gotan H. Jain, Sandesh R. Jadkar, Shashikant P. Patole, Ganesh E. Patil   +6 more
wiley   +1 more source

Material Before Morphology: Substrate‐Dependent Mechanical Tuning of Radular Teeth

Advanced Materials Interfaces, EarlyView.
Substrate‐dependent material tuning in Clausilia radular teeth. Closely related taxa retain a conserved gross tooth morphology, but differ in elemental composition and mechanical properties according to feeding substrate. Rock‐associated taxa show increased Ca–Si enrichment and higher stiffness and hardness, especially in the central radular region ...
Ida Lilienthal, Bernhard Hausdorf, Stanislav N. Gorb, Wencke Krings   +3 more
wiley   +1 more source

Startup extractivism: The political ecology of critical minerals processing in the United States

Journal of Political Ecology
Small, unevenly financialized companies are now shaping the development of new cobalt and nickel processing plants in the United States (U.S.). as the country seeks to secure its critical mineral supplies.
Raphael Deberdt
doaj   +2 more sources

Three‐Dimensional Printed Microarchitected Hierarchically Porous Biodegradable PLA/S/CNT Nanocomposite Electrodes for High‐Performance Lithium–Sulfur Batteries

Advanced Materials Technologies, EarlyView.
Hierarchically microarchitected PLA/S/CNT cathodes are fabricated via scalable fused filament 3D printing as high‐sulfur‐loading hosts for rechargeable lithium–sulfur batteries. The assembled Li–S cells with sulfur loadings up to 17 mg cm−2 deliver an areal capacity of 9.2 mAh cm−2 and retain 96% of their discharge capacity after 100 charge–discharge ...
Vinay Gupta, Pawan Verma, Fahad Alam, Krishnaiahnahundi Manjunathaswamy Mohan, Shanumgam Kumar   +4 more
wiley   +1 more source

In the crosshairs: Twenty-first-century superpower rivalry for Africa’s critical minerals

European Journal of International Security
This paper explores the complexity of superpower rivalry in the scramble for control of Africa’s abundant mineral resources. African governments are wary of diplomatic, economic, and sometimes military interventions, having experienced them all before ...
Ron Matthews, Vlado Vivoda
doaj   +1 more source

Self‐Assembled Calcite Architectures for Programmable Information Storage

Advanced Materials Technologies, EarlyView.
Programmable biomineralization enables the formation of 3D calcite architectures that encode information through spatially defined refractive‐index modulations. Data are written via laser‐directed mineralization, stored in stable voxelized mineral structures, and retrieved non‐destructively through optical diffraction, offering a pathway toward ultra ...
Congrui Jin, Yong Huang, Mehdi Ranjkesh Rashteh Roudi   +2 more
wiley   +1 more source

Supporting a Lithium Circular Economy via Reverse Logistics: Improving the Preprocessing Stage of the Lithium-Ion Battery Recycling Supply Chain

Energies
The clean energy transition is a paradigm shift from a carbon-intensive energy system to a renewable energy one. The new energy system requires large amounts of critical minerals, including lithium.
Oluwatosin S. Atitebi, Kalpana Dumre, Erick C. Jones   +2 more
doaj   +1 more source

Nature‐Derived Chitosan Biopolymer: A Promising Candidate for Sustainable Electronics

Advanced Materials Technologies, EarlyView.
In the creation of environmentally friendly devices, nature‐derived chitosan biopolymer is a promising contender for sustainable electronic research. It can be utilized to create more ecologically friendly scalable gadgets and has a variety of uses in different active layers of electronics.
Joshua McDonald, Ali Nawaz, Amandeep Singh, Prashant Sonar   +3 more
wiley   +1 more source

Development Status and Research Progress of Unconventional Brine-type Lithium Resources

Kuangchan zonghe liyong
This is an article in the field of mining engineering. As an important battery raw material in the field of new energy, the global demand for lithium is accelerating.
Xue LIU, Junwei ZHENG, Wenhao LIU, Liwei WANG   +3 more
doaj   +1 more source