Results 71 to 80 of about 6,539 (230)

Durable Fuel Cell Cathode Enabled by Pt Embedded Nanoscale Carbon Network via a Scalable Process

Carbon Energy, EarlyView.
Platinum nanoparticles embedded nanoscale carbon network (Pt‐e‐Cn) are developed via a scalable flame spray pyrolysis process. Proton exchange membrane fuel cells (PEMFC) employing mesoporous Pt‐e‐Cn cathode electrocatalysts exhibit exceptional durability without compromising performance.
Suriya Venkatesan, Jens Mitzel, Tobias Morawietz, Emmanuelle Boehm‐Courjault, Deven P. Estes, Laure Guétaz, Indro Biswas, Jan Van Herle, Karsten Wegner, Pawel Gazdzicki, Kaspar Andreas Friedrich   +10 more
wiley   +1 more source

The NO2 sensing ITO thin films prepared by ultrasonic spray pyrolysis

Sensors, 2003
In this paper ITO thin films were deposited on alumina substrates by ultrasonic spray pyrolysis. The NO2 sensing properties of ITO thin films were investigated. The results show ITO thin films have good sensitivity to nitrogen dioxide.
Jianzhong Gu, Minghua Lu, Zheng Qin, Minghong Wu, Zheng Jiao   +4 more
doaj   +1 more source

Sunlight‐Driven Green Synthesis of Platinum Nanoparticles From Double‐Vacancy Halide Perovskite Precursors for Methanol Reforming

Chemistry – A European Journal, EarlyView.
ABSTRACT The development of synthetic procedures for preparing metal nanoparticles with controlled size using sunlight opens new avenues toward more sustainable methods with lower energy consumption. Herein, we propose the use of double‐vacancy halide perovskites as precursors for engineering highly crystalline and small platinum nanoparticles (< 3 nm)
Kevin Mego, Saray Chacón‐Ruiz, Pedro Ruiz‐Campos, Herme G. Baldoví, Pedro Atienzar   +4 more
wiley   +1 more source

Preparation of NaTaO3 by Spray Pyrolysis and Evaluation of Apparent Photocatalytic Activity for Hydrogen Production from Water

International Journal of Photoenergy, 2008
NaTaO3 photocatalyst was prepared by spray pyrolysis process and tested as photocatalyst for water splitting under UV light. Precursor solution was prepared from NaNO3 and Ta(OC2H5)5 in nitric acid solution and spray-pyrolyzed in air at between 973 and ...
Hyun Woo Kang, Eun-Jung Kim, Seung Bin Park   +2 more
doaj   +1 more source

Preparation of Hydroxyapatite by Spray-Pyrolysis Technique

Journal of the Ceramic Association, Japan, 1987
Preparation of hydroxyapatite (HAP) was investigated by the spray-pyrolysis technique from methanol-water-nitric acid solution of calcium nitrate and phosphoric acid between 800° and 1400°C. The powders obtained consisted of crystalline HAP and a small amount of α-tricalcium phosphate under the experimental conditions used.
INOUE, Senya, ONO, Akira
openaire   +2 more sources

A novel bubbling fluid bed reactor for the autothermal pyrolysis of waste plastics

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract A new pilot‐scale fluidized bed reactor operated under continuous conditions was developed and tested for the thermal pyrolysis of high‐density polyethylene (HDPE). The study focused on assessing the reliability and operability of the system under different operating conditions (400–550°C), while monitoring mass and energy balances, product ...
Khadija Olivia Ogoula Igouwe, Tchini Sévérin Tanoh, Jasmin Blanchard, Inès Esma Achouri, Nicolas Abatzoglou   +4 more
wiley   +1 more source

Cobalt‐Free Single‐Crystal Cathodes for Next‐Generation Lithium‐Ion Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Cobalt‐free single‐crystal cathodes enhance lithium‐ion battery stability by mitigating fracture, degradation, and phase transitions. This review highlights Ni‐rich layered, Li‐Mn‐rich, spinel, and olivine frameworks, synthesis strategies enabling morphology and defect control, and structural tuning via doping and coatings, offering pathways toward ...
Srinivasan Alagar, Rakesh Saroha, Jun Kim, Hyung Do Kim, Jung Sang Cho, Sang Mun Jeong   +5 more
wiley   +1 more source

Spray pyrolysis synthesis of TaxLi7-xLa3Zr2-xO12 nanostructured ceramic [PDF]

Cerâmica
Li7-xLa3Zr2-xO12-Tax (x =0, 0.1, 0.2, 0.3) nanostructured powders were successfully synthesized using an innovative wet chemical route via spray pyrolysis technique at 800 °C for 10 seconds, followed by post heat treatment at 800 °C for 30 minutes in a ...
Glauco M. M. M. Lustosa, Marianne G. S. Franchetti, Adler de Souza, Leandro da Conceição   +3 more
doaj   +1 more source

One‐Pot Spray Pyrolysis Fabrication of Multi‐Phase Lithium Manganese Oxide Microsphere Cathodes for Enhanced Lithium‐Ion Battery Performance

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Sr‐LMO microspheres were synthesized by one‐pot spray pyrolysis, forming multi‐phase lithium manganese oxide with Sr‐doped LiMn2O4, Sr2Mn2O5, and Li2MnO3‐like domains. This structure refines particles, suppresses Jahn–Teller distortion, and adds Li+ pathways, delivering superior cycling stability and rate performance over undoped and commercial LMO ...
Jae Hyeon Choi, Yeon Oh Lee, Kyoung Sun Kim, Yun Chan Kang, Jung Sang Cho, Hyungsub Kim, Sang Mun Jeong, Gi Dae Park   +7 more
wiley   +1 more source

Continuous high-temperature rapid nanomanufacturing of electrocatalysts

Nano Research
Encapsulating metal nanoparticles in carbon shells (Metal@C) to enhance catalytic activity and stability has been certified feasible. However, most existing methods for preparing Metal@C are complex, time-consuming, and lack of scalability. In this study,
Xiaoyang Wang, Ziyi Luo, Baihua Cui, Ziqi Fu, Yanchang Liu, Weidi Liu, Jia Ding, Jianrong Zeng, Yanan Chen, Wenbin Hu   +9 more
doaj   +1 more source