Tailoring the reducibility and catalytic activity of CuO nanoparticles for low temperature CO oxidation

عرض / فتح
التاريخ
2018المؤلف
Zedan, Abdallah F.Mohamed, Assem T.
El-Shall, M. Samy
AlQaradawi, Siham Y.
AlJaber, Amina S.
البيانات الوصفية
عرض كامل للتسجيلةالملخص
Copper oxide (CuO) nanoparticles have received considerable interest as active and inexpensive catalysts for various gas–solid reactions. The CuO reducibility and surface reactivity are of crucial importance for the high catalytic activity. Herein, we demonstrate that the reducibility and stability of CuO nanoparticles can be controlled and tailored for the high catalytic activity of CO oxidation. The synthesized CuO nanoparticles possessed enhanced reducibility in CO atmosphere at lower reduction temperature of 126 °C compared to 284 °C for that of reference CuO particles. Moreover, the CuO catalysts with tailored reducibility demonstrated a reaction rate of 35 μmol s−1 g−1 and an apparent activation energy of 75 kJ mol−1. Furthermore, the tailored catalysts exhibited excellent long-term stability for CO oxidation for up to 48 h on stream. These readily-reducible CuO nanoparticles could serve as efficient, inexpensive and durable catalysts for CO oxidation at low temperatures.
المجموعات
- الكيمياء وعلوم الأرض [596 items ]
وثائق ذات صلة
عرض الوثائق المتصلة بواسطة: العنوان، المؤلف، المنشئ والموضوع.
-
A low power temperature sensor based on a voltage to time converter cell
Mohamad, Saqib; Fang Tang; Bermak, Amine; Amira, Abbes; Benammar, Mohieddine ( IEEE , 2013 , Conference)In this paper we propose a temperature sensor, based on a voltage to time converter cell (VTC). A VTC is frequently employed in time to digital converters for generating a delay that is proportional to the input voltage. ... -
Global maps of soil temperature
Lembrechts, Jonas J.; van den Hoogen, Johan; Aalto, Juha; Ashcroft, Michael B.; De Frenne, Pieter; Kemppinen, Julia; Kopecký, Martin; Luoto, Miska; Maclean, Ilya M.D.; Crowther, Thomas W.; Bailey, Joseph J.; Haesen, Stef; Klinges, David H.; Niittynen, Pekka; Scheffers, Brett R.; Van Meerbeek, Koenraad; Aartsma, Peter; Abdalaze, Otar; Abedi, Mehdi; Aerts, Rien; Ahmadian, Negar; Ahrends, Antje; Alatalo, Juha M.; Alexander, Jake M.; Allonsius, Camille Nina; Altman, Jan; Ammann, Christof; Andres, Christian; Andrews, Christopher; Ardö, Jonas; Arriga, Nicola; Arzac, Alberto; Aschero, Valeria; Assis, Rafael L.; Assmann, Jakob Johann; Bader, Maaike Y.; Bahalkeh, Khadijeh; Barančok, Peter; Barrio, Isabel C.; Barros, Agustina; Barthel, Matti; Basham, Edmund W.; Bauters, Marijn; Bazzichetto, Manuele; Marchesini, Luca Belelli; Bell, Michael C.; Benavides, Juan C.; Benito Alonso, José Luis; Berauer, Bernd J.; Bjerke, Jarle W.; Björk, Robert G.; Björkman, Mats P.; Björnsdóttir, Katrin; Blonder, Benjamin; Boeckx, Pascal; Boike, Julia; Bokhorst, Stef; Brum, Bárbara N.S.; Brůna, Josef; Buchmann, Nina; Buysse, Pauline; Camargo, José Luís; Campoe, Otávio C.; Candan, Onur; Canessa, Rafaella; Cannone, Nicoletta; Carbognani, Michele; Carnicer, Jofre; Casanova-Katny, Angélica; Cesarz, Simone; Chojnicki, Bogdan; Choler, Philippe; Chown, Steven L.; Cifuentes, Edgar F.; Čiliak, Marek; Contador, Tamara; Convey, Peter; Cooper, Elisabeth J.; Cremonese, Edoardo; Curasi, Salvatore R.; Curtis, Robin; Cutini, Maurizio; Dahlberg, C. Johan; Daskalova, Gergana N.; de Pablo, Miguel Angel; Della Chiesa, Stefano; Dengler, Jürgen; Deronde, Bart; Descombes, Patrice; Di Cecco, Valter; Di Musciano, Michele; Dick, Jan; Dimarco, Romina D.; Dolezal, Jiri; Dorrepaal, Ellen; Dušek, Jiří; Eisenhauer, Nico; Eklundh, Lars; Erickson, Todd E.; Erschbamer, Brigitta... more authors ... less authors ( Wiley , 2022 , Article)Research in global change ecology relies heavily on global climatic grids derived from estimates of air temperature in open areas at around 2 m above the ground. These climatic grids do not reflect conditions below vegetation ... -
Reinforcement of polyacrylamide-co-tert-butyl acrylate base gel using nanosilica for conformance control at low and high reservoir temperatures
Shamlooh M.; Hamza A.; Hussein I.A.; Nasser M.S.; Salehi S. ( Society of Petroleum Engineers (SPE) , 2020 , Conference)Challenges of water shut-off, which is categorized under conformance control, are nowadays common in the oil and gas industry. The excessive water quantities produced from oil reservoirs can make the production process ...