Results 1 to 10 of about 1,063,475 (315)

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

What’s yours is mine and what’s mine is mine?

Oñati Socio-Legal Series, 2018
Intellectual property and cultural policy are essential to the practice of cultural rights, however, in both legal frameworks, indigenous peoples have often found that the state has little consideration for their voices and their world views. In contrast, though no more representative of indigenous perspectives, the social sciences, while engaging with
Lucero Ibarra Rojas, Ezequiel Escobedo Osorio, Fogata Kejtsitani   +2 more
openaire   +1 more source

Mining Rivers: Copper Waste, Workers, and Disputes over Water Rights in Chile’s Río Salado

Latin American Research Review
This article is an environmental history of Anaconda Copper Company’s disposal of hundreds of thousands of tons of toxic waste from its Potrerillos and El Salvador mines into Chile’s Río Salado and Bahía de Chañaral.
Thomas Klubock
doaj   +1 more source

Polyimide‐Linked Hexaazatriphenylene‐Based Porous Organic Polymer with Multiple Redox‐Active Sites as a High‐Capacity Organic Cathode for Lithium‐Ion Batteries

Advanced Materials, EarlyView.
A high‐capacity polyimide‐linked porous organic polymer (HAT‐PTO) incorporating numerous redox‐active centers is synthesized via a hydrothermal reaction, delivering a high theoretical capacity of 484 mAh g−1. In situ hybridization with carboxyl‐functionalized multiwalled carbon nanotubes enhances conductivity and stability, achieving 397 mAh g−1 at C ...
Arindam Mal, Jonathan Caroni, Asia Patriarchi, Olivera Luzanin, Rafael Ramos, Jan Bitenc, Manuel Melle‐Franco, Manuel Souto   +7 more
wiley   +1 more source

Sub‐Nanometer Curvature Unlocks Quantum Orbital Flexoelectricity in Graphene

Advanced Materials, EarlyView.
In self‐assembled, reproducible, large‐area, quasi‐pristine graphene nanowrinkles, extreme curvature forces out‐of‐plane π‐electrons toward hybridization, driving a transition from classical to quantum orbital flexoelectricity. As curvature approaches the fundamental physical limit set by the C─C bond length, the resulting polarization increases by ...
Sathvik Ajay Iyengar, James G. McHugh, Jonathan P. Salvage, Robert Vajtai, Venkataramana Gadhamshetty, Alan B. Dalton, Manoj Tripathi, Pulickel M. Ajayan, Vincent Meunier   +8 more
wiley   +1 more source

Characterization, Spatial Variation and Risk Assessment of Heavy Metals and a Metalloid in Surface Soils in Obuasi, Ghana

Journal of Health and Pollution, 2018
Background. Soil contamination with heavy metals and metalloids has become an increasingly important issue in recent years. Objectives. The present study examines possible contamination of the environment with metals from gold mining activities in Obuasi,
Osei Akoto, Nesta Bortey-Sam, Shouta M.M. Nakayama, Yoshinori Ikenaka, Elvis Baidoo, Joseph Apau, Jemima Tiwaa Marfo, Mayumi Ishizuka   +7 more
doaj   +1 more source

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

Advanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam, William S. Rogers, Chen‐Yu Hu, Ming‐Yuan Song, Xinyu Bao, Shehrin Sayed, Jean Anne C. Incorvia   +6 more
wiley   +1 more source

Review of Environmental and Health Impacts of Mining in Ghana

Journal of Health and Pollution, 2018
Mining has played an important role in the development of Ghana. Like all industries, mining has both benefits and risks for the people living in communities where minerals are found.
Aboka Yaw Emmanuel, Cobbina Samuel Jerry, Doke Adzo Dzigbodi   +2 more
doaj   +1 more source

Organic Materials of Tomorrow: Horizons of Artificial Intelligence

Advanced Materials, EarlyView.
This review examines machine learning techniques accelerating the discovery of organic semiconductors by linking molecular structure to properties. Key methods include graph neural networks, generative models, and active learning. Applications to organic photovoltaics demonstrate practical impact.
Harold Mena, J. Terence Blaskovits, Kun‐Han Lin, Denis Andrienko   +3 more
wiley   +1 more source

Aspek Hukum Kewenangan Pemerintah Daerah Pada Pemulihan Lingkungan Akibat Usaha Pertambangan

Jurnal Nuansa Akademik
The aim of this study is to determine local governments' authority over environmental recovery as a result of mining activity. This study employs an empirical normative research method with three approaches: legislative, conceptual, and case-based.
Vonny Anneke Wongkar, Feiby S. Wewengkang, Cobi Elisabeth Montesori Mamahit   +2 more
doaj   +1 more source