Triazole-Containing Dendrimer-like Core Cross-Linked Micelles that Stabilize Pd Nanoparticles as Heterogenized Homogeneous Catalysts for Room-Temperature Suzuki-Miyaura Reactions in Water

2016 ◽  
Vol 11 (24) ◽  
pp. 3550-3556 ◽  
Author(s):  
Bing Li ◽  
Yangyang Yu ◽  
Pengxiang Zhao ◽  
Shiyong Zhang
Keyword(s):  
Room Temperature ◽  
Pd Nanoparticles ◽  
Homogeneous Catalysts

PVP-PS supported ultra-small Pd nanoparticles for the room temperature reduction of 4-nitrophenol

2020 ◽  
Vol 8 (4) ◽  
pp. 103899 ◽  
Author(s):  
Bhairi Lakshminarayana ◽  
K.V. Ashok Kumar ◽  
M. Selvaraj ◽  
G. Satyanarayana ◽  
Subrahmanyam Ch.
Keyword(s):  
Room Temperature ◽  
Pd Nanoparticles ◽  
Temperature Reduction

Dendrimer-Encapsulated Pd Nanoparticles as Aqueous, Room-Temperature Catalysts for the Stille Reaction

2005 ◽  
Vol 127 (14) ◽  
pp. 5097-5103 ◽  
Author(s):  
Joaquin C. Garcia-Martinez ◽  
Raphael Lezutekong ◽  
Richard M. Crooks
Keyword(s):  
Room Temperature ◽  
Pd Nanoparticles ◽  
Stille Reaction

Room-Temperature Tandem Condensation-Hydrogenation Catalyzed by Porous C3N4 Nanosheet-Supported Pd Nanoparticles

2018 ◽  
Vol 7 (3) ◽  
pp. 3356-3363 ◽  
Author(s):  
Renfeng Nie ◽  
Minda Chen ◽  
Yuchen Pei ◽  
Biying Zhang ◽  
Long Qi ◽  
...  
Keyword(s):  
Room Temperature ◽  
Pd Nanoparticles ◽  
Supported Pd

Enhanced H2 sensitivity at room temperature of ZnO nanowires functionalized by Pd nanoparticles

2011 ◽  
Vol 110 (8) ◽  
pp. 084312 ◽  
Author(s):  
Shoutian Ren ◽  
Guanghua Fan ◽  
Shiliang Qu ◽  
Qiang Wang
Keyword(s):  
Room Temperature ◽  
Pd Nanoparticles ◽  
Zno Nanowires

Preparation and Characterization of Pd-Based Optical Hydrogen Sensor Operated at Room Temperature by Using Photodeposition Process

2010 ◽  
Vol 445 ◽  
pp. 100-104 ◽  
Author(s):  
Junichi Hamagami ◽  
Ryo Araki ◽  
Hiroyuki Oda ◽  
Mototsugu Sakai ◽  
Atsunori Matsuda
Keyword(s):  
Thin Film ◽  
Glass Substrate ◽  
Room Temperature ◽  
Tio2 Thin Film ◽  
Uv Light ◽  
Sol Gel ◽  
Optical Transmittance ◽  
Pd Nanoparticles ◽  
Hydrogen Gas ◽  
Hot Water

Palladium (Pd) nanoparticles were prepared on photocatalytic TiO2-coated glass substrate by a photodeposition process and the optical hydrogen sensing properties were examined at room temperature. The TiO2 coatings were prepared on a non-alkaline glass substrate by a sol-gel process and hot water treatment. Pd nanoparticles were deposited on the TiO2 film by photodeposition using UV light. The obtained Pd/TiO2 thin film showed remarkable optical transmittance response to hydrogen gas at room temperature. The normalized transmittance of the Pd/TiO2 thin film at a wavelength of 640 nm decreased to 0.9 on exposing the film to hydrogen gas for only 5 s. This transmittance decrease is considered to be due to a gaschromic effect of the TiO2 photocatalytic coating.

Pd nanoparticles supported on CeO2 as efficient catalyst for hydrogen generation from formaldehyde solution at room temperature

2017 ◽  
Vol 31 (12) ◽  
pp. e3889 ◽  
Author(s):  
Tao Feng ◽  
Ranxiao Tang ◽  
Ningzhao Shang ◽  
Cheng Feng ◽  
Shutao Gao ◽  
...  
Keyword(s):  
Room Temperature ◽  
Hydrogen Generation ◽  
Pd Nanoparticles ◽  
Formaldehyde Solution ◽  
Efficient Catalyst

H2 Gas Sensor Based on Pd-Loaded Carbon Nanotube Film

2020 ◽  
Vol 20 (7) ◽  
pp. 4470-4473
Author(s):  
Maeum Han ◽  
Jae Keon Kim ◽  
Junyeop Lee ◽  
Hee Kyung An ◽  
Jong Pil Yun ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Gas Sensors ◽  
Room Temperature ◽  
Pd Nanoparticles ◽  
Gas Detection ◽  
Structural Flexibility ◽  
Bending Tests ◽  
Multi Walled Carbon Nanotube ◽  
Reliable Detection ◽  
Detection Characteristics

Palladium-coated multi-walled carbon nanotube (Pd-MWCNT) nanocomposites have been experimentally proven to show highly improved hydrogen (H2) gas detection characteristics at room temperature when compared with single MWCNTs. In this context, we develop an efficient and convenient method for forming nanocomposites by coating Pd nanoparticles on an MWCNT film. Furthermore, we test the applicability of the nanocomposites as sensing materials in detecting H2 gas at room temperature in a reliable and sensitive manner in contrast with ordinary metal-oxidebased gas sensors that operate at high temperatures. We first study the detection efficacy of the Pd-MWCNT film relative to pure MWCNT film. Subsequently, we investigate the Pd-MWCNT sensor’s sensitivity over time for different gas concentrations, the sensor response time, and sensor reproducibility and reliability under various conditions including bending tests. Our sensor exhibits stable reliable detection characteristics and excellent structural flexibility.

scholarly journals Rapid Reduction of Alkenes and Alkynes over Pd Nanoparticles Supported on Sulfonated Porous Carbon

2013 ◽  
Vol 2013 ◽  
pp. 1-7
Author(s):  
Arash Shokrolahi ◽  
Abbas Zali ◽  
Kamal Ghani
Keyword(s):  
Reaction Time ◽  
Porous Carbon ◽  
Room Temperature ◽  
Heterogeneous Reaction ◽  
Low Cost ◽  
Pd Nanoparticles ◽  
Rapid Reduction ◽  
Short Reaction Time ◽  
Novel Method ◽  
High Yields

A novel method has been introduced for rapid reduction of alkenes and alkynes, which may be attractive for chemical industries. This method has some advantages such as simplicity and low cost of reactants. Pd supported on sulfonated porous carbon (SPC) was used as a new catalyst for reduction of alkenes and alkynes to the corresponding alkanes using sodium borohydride. The heterogeneous reaction was conducted in open air at room temperature to produce the desired saturated compounds in high yields (over 96%) and in short reaction time (15 minutes).

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