Results 101 to 110 of about 18,311 (249)

A Review of the Strategies Used in the Recovery and Passivation of Lead in Lead‐Based Perovskite Solar Cells: Balancing Device Efficiency, Toxicity, and Environmental Sustainability

open access: yesNatural Sciences, Volume 6, Issue 1, January 2026.
Lead‐based perovskite solar cells deliver outstanding power conversion efficiencies, yet their commercialization is constrained by concerns over lead toxicity and stability challenges. Advanced encapsulation and chemical passivation techniques can significantly suppress lead leakage while improving long‐term device stability.
George G. Njema   +3 more
wiley   +1 more source

Microbes at the extreme: mining with microbes [PDF]

open access: yes, 2012
The use of microorganisms to recover precious and base metals from mineral ores and concentrates is called biomining, or biohydrometallurgical processing.
Macreadie, I, Widjewardena, U
core  

Chemoorganotrophic Bioleaching of Olivine for Nickel Recovery [PDF]

open access: yes, 2014
Bioleaching of olivine, a natural nickel-containing magnesium-iron-silicate, was conducted by applying chemoorganotrophic bacteria and fungi. The tested fungus, Aspergillus niger, leached substantially more nickel from olivine than the tested bacterium ...
Chiang, Yi Wai   +5 more
core   +3 more sources

Optimización de parámetros para la extracción de elementos desde minerales en medios ácido [PDF]

open access: yes, 2020
[SPA] Esta tesis doctoral se presenta bajo la modalidad de compendio de publicaciones. Actualmente, la gran minería del cobre chilena se encuentra frente a nuevos problemas y desafíos a superar.
Toro Villarroel, Norman Rodrigo
core   +2 more sources

Toward Sustainable Lithium‐Ion Batteries: Recycling and Reuse Strategies for Spent Graphite Anodes

open access: yesSmall, Volume 22, Issue 6, 27 January 2026.
This review outlines the degradation mechanisms of spent graphite anodes in lithium‐ion batteries and highlights key recycling, regeneration, and modification strategies, spanning hydrometallurgical and pyrometallurgical methods. It also examines advances in surface engineering, structural tuning, and material hybridization, offering insights that ...
Zhifei Mao, Jingshan Chai, Ruigang Wang
wiley   +1 more source

Surface alteration of realgar (As4S4) by Acidithiobacillus ferrooxidans [PDF]

open access: yes, 2012
The chemical and physical characteristics of realgar (an arsenic sulfide mineral that occurs in several crystalline forms) in the presence of Acidithiobacillus ferrooxidans BY-3 were investigated in this work.
Hongyu Li   +4 more
core  

Insights on the structure and stability of Licanantase: a trimeric acid-stable coiled-coil lipoprotein from Acidithiobacillus thiooxidans [PDF]

open access: yes, 2014
Licanantase (Lic) is the major component of the secretome of Acidithiobacillus thiooxidans when grown in elemental sulphur. When used as an additive, Lic improves copper recovery from bioleaching processes. However, this recovery enhancement is not fully
Alejandro Maass   +5 more
core   +2 more sources

Combined remediation technology for the reduction and bioleaching of hexavalent chromium from soils using Acidithiobacillus thiooxidans [PDF]

open access: yes, 2014
Contamination of soils due to the release of effluents or deposition of wastes containing hexavalent chromium has been arising serious environmental problems.
Fonseca, B.   +4 more
core  

Toward Energy Justice Principles for Sustainable Lithium‐Ion Battery Technologies

open access: yesAdvanced Energy and Sustainability Research, Volume 6, Issue 12, December 2025.
Prefeasibility life cycle assessment is used to evaluate the environmental, social, and supply chain impacts of lithium‐ion battery technologies, and the concept of distributional energy justice is discussed. By comparing chemistries and use cases, it reveals inequities in material sourcing and technology access.
Isabella D. R. Stephens   +4 more
wiley   +1 more source

Nutrient optimization in bioleaching: are we overdosing?

open access: yesFrontiers in Microbiology
The general trend in biomining (i.e., bioleaching and biooxidation) is the use of media with high concentrations of the nutrients (nitrogen as ammonium, phosphorous as phosphate, and K), which are considered to be essential for microbial growth.
Carmen Falagán   +6 more
doaj   +1 more source

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