Results 41 to 50 of about 353,649 (352)

Single‐Step Conversion of Metal Impurities in CNTs to Electroactive Metallic Nitride Nanoclusters for Electrochemical CO2 Reduction

Advanced Functional Materials, EarlyView.
A single‐step, low‐temperature co‐pyrolysis process removes encapsulated seed metal NPs (10–50 nm) from CNTs, redistributing them as surface‐anchored metal and metal–nitride NCs (1–1.5 nm). Herein, Ni3N NCs achieve an ultra‐low onset overpotential for CO2 reduction to CO with >98% Faradaic efficiency across 100–700 mA cm−2.
Ahmed Badreldin, John Pellessier, Francisco Alejandro Ospina Acevedo, Siyuan Fang, Carter Racine, Jin Feng, Alvin Chang, Yulu Ge, Yang Gang, Shengyao Wang, Xiaokun Yang, Sergei Ivanov, Zhenxing Feng, Yun Hang Hu, Perla B. Balbuena, Ying Li   +15 more
wiley   +1 more source

An Optoelectrically Switched, Dual‐Mode Neuromorphic Sensor for Transient and Accumulative Gas Detection

Advanced Functional Materials, EarlyView.
A transistor‐type carbon nanotube gas sensor with dual‐mode detection capability has been proposed. By simply adjusting the gate voltage and UV illumination, this sensor enables both real‐time detection and accumulation‐based sensing of toxic gases within a single device, providing a compact and adaptable platform for environmental monitoring ...
Jaewon Shin, Young‐Woo Jang, Seung‐Han Kang, Jeong‐Wan Jo, Jong Wook Shin, Yong‐Hoon Kim, Sung Kyu Park, Sung Woon Cho   +7 more
wiley   +1 more source

A Mini-Review on Metal Oxide Semiconductor Gas Sensors for Carbon Monoxide Detection at Room Temperature

Chemosensors
Carbon monoxide can cause severe harm to humans even at low concentrations. Metal Oxide Semiconductor (MOS) carbon monoxide gas sensors have excellent sensing performance regarding sensitivity, selectivity, response speed, and stability, making them very
Yaoyi He, Mingzhi Jiao
doaj   +1 more source

Self‐Assembled Gallium Sulfide (GaS) Heterostructures Enabling Efficient Water Splitting and Selective Ammonia Sensing

Advanced Functional Materials, EarlyView.
Gallium sulfide (GaS) forms self‐assembled heterostructures with its native oxide, exhibiting high performance in water splitting and ultrasensitive and selective ammonia detection. Surface defects and controlled oxidation enhance catalytic activity and sensing response.
Danil W. Boukhvalov, Gianluca D'Olimpio, Tsotne Dadiani, Jyayasi Sharma, Ashraf Abdelrahman Assadig Elameen, Stefano Zenone, Marcin Rosmus, Bekir Gürbulak, Emir Çepni, Eduard Llobet, Elena Magnano, Federica Bondino, Songül Duman, Antonio Politano   +13 more
wiley   +1 more source

Exploiting the Functionality of Cerium Oxide‐Modified Carbon Nanohorns Catalysts Toward Enhanced CO2 Reduction Performance

Advanced Functional Materials, EarlyView.
A cerium oxide‐carbon nanohybrid catalyst is synthesized via two distinct routes and is integrated into H‐type cells and gas diffusion layers (GDLs) to enhance electrochemical performance. Structural variations significantly affect performance, with the solvothermal sample exhibiting higher current densities.
Alessia Pollice, Michele Cacioppo, Miriam Marchi, Miriam Moro, Francesco Paolucci, Marcella Bonchio, Maurizio Prato, Giovanni Valenti, Michele Melchionna, Paolo Fornasiero   +9 more
wiley   +1 more source

Impact of Smoking on Oxygen Saturation, Carboxyhemoglobin, and Carbon Monoxide Levels: A Pilot Study of Chairside Biomarkers for Smoking Status

Journal of Indian Academy of Oral Medicine and Radiology
Background: Tobacco use is associated with various health risks, including respiratory and cardiovascular diseases. Aim: The objective of this study is to assess the levels of oxygen saturation, carboxyhemoglobin, and carbon monoxide in smokers compared ...
Christeena Binny, Mathew Jacob, Saramma M. Fenn   +2 more
doaj   +1 more source

A report of dangerously high carbon monoxide levels within the passenger compartment of a snow-obstructed vehicle

BMC Emergency Medicine, 2004
Background We sought to determine how quickly carbon monoxide would accumulate in the passenger compartment of a snow-obstructed vehicle. Methods A 1992 sedan was buried in snow to the level of the undercarriage, the ignition was then engaged and carbon ...
Smithline Howard A, Osborne Benjamin, Playe Stephen J, Griffin Jill A   +3 more
doaj   +1 more source

Carbon Monoxide Poisoning [PDF]

Journal of the Royal Society of Medicine, 2001
The deadly effect of carbon monoxide was known as long ago as Greek and Roman times, when the gas was used for executions1. In 1857 Claude Bernard postulated that its noxious effect was caused by reversible displacement of oxygen from haemoglobin to form carboxyhaemoglobin2.
openaire   +3 more sources

Four-electron deoxygenative reductive coupling of carbon monoxide at a single metal site [PDF]

, 2016
Carbon dioxide is the ultimate source of the fossil fuels that are both central to modern life and problematic: their use increases atmospheric levels of greenhouse gases, and their availability is geopolitically constrained.
AE Enriquez, AM Appel, BM Gardner, C Costentin, CW Li, DLM Suess, EM Carnahan, FR Kreissl, J Ballmann, JA Buss, JE Ellis, Joshua A. Buss, KT Horak, M Gattrell, MC Cassani, MH Stewart, MR Churchill, NM West, OT Summerscales, PA Belmonte, RE LaPointe, RG Carlson, RL Miller, T Matsuo, T Shima, T Watanabe, Theodor Agapie, W Büchner, WJ Evans, YL Hu   +29 more
core   +1 more source

Recycling of Thermoplastics with Machine Learning: A Review

Advanced Functional Materials, EarlyView.
This review shows how machine learning is revolutionizing mechanical, chemical, and biological pathways, overcoming traditional challenges and optimizing sorting, efficiency, and quality. It provides a detailed analysis of effective feature engineering strategies and establishes a forward‐looking research agenda for a truly circular thermoplastic ...
Rodrigo Q. Albuquerque, Florian Stephan, Annalena Pongratz, Christian Brütting, Katharina Krause, Holger Ruckdäschel   +5 more
wiley   +1 more source