Results 101 to 110 of about 77,901 (345)

Fundamentals and Principles of Solid-State Electrochemical Sensors for High Temperature Gas Detection [PDF]

, 2021
E. Gorbova, Fotini Tzorbatzoglou, Costas Molochas, Dimitris Chloros, A. Demin, Panagiotis Tsiakaras   +5 more
openalex   +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

Platform for a Hydrocarbon Exhaust Gas Sensor Utilizing a Pumping Cell and a Conductometric Sensor

Sensors, 2009
Very often, high-temperature operated gas sensors are cross-sensitive to oxygen and/or they cannot be operated in oxygen-deficient (rich) atmospheres. For instance, some metal oxides like Ga2O3 or doped SrTiO3 are excellent materials for conductometric ...
Ralf Moos, Kerstin Wiesner, Diana Biskupski, Andrea Geupel, Maximilian Fleischer   +4 more
doaj   +1 more source

Facile Fabrication of an Ammonia-Gas Sensor Using Electrochemically Synthesised Polyaniline on Commercial Screen-Printed Three-Electrode Systems [PDF]

, 2020
Anja Korent, Kristina Žagar Soderžnik, Sašo Šturm, Kristina Žužek Rožman, Nathalie Redon, J.-L. Wojkiewicz, Caroline Duc   +6 more
openalex   +1 more source

Electrochemical sensors onboard a Zeppelin NT: In-flight evaluation of low-cost trace gas measurements [PDF]

, 2022
Tobias Schuldt, Georgios I. Gkatzelis, Christian Wesolek, Franz Röhrer, Benjamin Winter, Thomas A. J. Kuhlbusch, Astrid Kiendler‐Scharr, Ralf Tillmann   +7 more
openalex   +1 more source

Spacecraft nitrogen generation [PDF]

Two spacecraft nitrogen (N2) generation systems based on the catalytic dissociation of hydrazine (N2H4) were evaluated. In the first system, liquid N2H4 is catalytically dissociated to yield an N2 and hydrogen (H2) gas mixture.
Carlson, J. N., Kacholia, K. K., Marshall, R. D., Powell, J. D.   +3 more
core   +1 more source

Modulating Electrochemical CO2 Reduction Pathways via Interfacial Electric Field

Advanced Functional Materials, EarlyView.
Engineering interfacial electric fields in Cu/ITO electrodes enables precise control of CO2 reduction pathways. Charge transfer from Cu to ITO generates positively charged Cu species that steer selectivity from ethylene toward methane. This work demonstrates how interfacial electric‐field modulation can direct reaction intermediates and transform ...
Mahdi Salehi, Zhengyuan Gao, Sai Phani Kumar Vangala, Amirhossein Farzi, Hamed Heidarpour, Morgan McKee, Nikolay Kornienko, Ali Seifitokaldani   +7 more
wiley   +1 more source

Optimized Triple-Phase Boundary in Ysz-Based Electrochemical Gas Sensor Enables to Lower the Operation Temperature for Sensing Ppb Level H2s

, 2022
Lecheng Zhu, Rong Qian, Xiaolong Liu, Zheng Yang, Ran Li, Jun Zheng, Chunchang Wang, Youmin Guo   +7 more
openalex   +1 more source

CO2 Reduction on Copper‐Nitrogen‐Doped Carbon Catalysts Tuned by Pulsed Potential Electrolysis: Effect of Pulse Potential

Advanced Functional Materials, EarlyView.
This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán, Janis Timoshenko, Andrea Martini, Hyo Sang Jeon, Eduardo Ortega, Martina Rüscher, Arno Bergmann, Aram Yoon, Uta Hejral, Antonia Herzog, Clara Rettenmaier, Felix T. Haase, Philipp Grosse, Beatriz Roldan Cuenya   +13 more
wiley   +1 more source

Cryo‐EM of Rationally Designed Photosystem I Nanoassembly on Graphene Validates Orientation‐Driven Enhancement of Photocatalytic Performance

Advanced Functional Materials, EarlyView.
The first cryo‐EM visualization and quantification of oriented Photosystem I (PSI) on single‐layer graphene is reported. Domain‐specific covalent anchoring of PSI, with the reducing side of the biophotocatalyst toward graphene, promotes three‐fold higher anodic photocurrent generation compared to a randomly physisorbed counterpart. This approach allows
Miriam Izzo, Margot Jacquet, Tomasz Góral, Marcin Strawski, Takayuki Fujiwara, Shin‐ya Miyagishima, Joanna Kargul   +6 more
wiley   +1 more source