Akbayrak Serdar, Özçifçi Zehra, Tabak Ahmet
Department of Chemistry, Faculty of Arts and Science, Sinop University, 57000 Sinop, Turkey.
Department of Chemistry, Faculty of Arts and Science, Recep Tayyip Erdoğan University, 53100 Rize, Turkey.
J Colloid Interface Sci. 2019 Jun 15;546:324-332. doi: 10.1016/j.jcis.2019.03.070. Epub 2019 Mar 23.
Noble metal nanoparticles including rhodium, ruthenium and palladium have been extensively used in catalysis field. Since their limited abundance and high cost, many methods have been developed to obtain highly active and recyclable catalysts. In this work, Rh, Ru, Pd ions were impregnated on activated carbon derived from pumpkin stalk in distilled water and then reduced with sodium borohydride to form Rh, Ru, Pd nanoparticles on the surface of carbon. The analyses show that these nanoparticles were successfully dispersed on the activated carbon. Rh, Ru and Pd nanoparticles on activated carbon provide a turnover frequency value of 188 min, 235 min and 40 min, respectively, at 25.0 ± 0.1 °C. They preserve their activity even after multiple use in H generation from the hydrolysis of ammonia borane.
包括铑、钌和钯在内的贵金属纳米颗粒已在催化领域得到广泛应用。由于其储量有限且成本高昂，人们已开发出许多方法来获得高活性和可循环使用的催化剂。在这项工作中，将铑、钌、钯离子浸渍在蒸馏水中由南瓜秸秆衍生的活性炭上，然后用硼氢化钠还原，在碳表面形成铑、钌、钯纳米颗粒。分析表明，这些纳米颗粒成功地分散在活性炭上。在25.0±0.1°C时，活性炭上的铑、钌和钯纳米颗粒的转换频率值分别为188分钟、235分钟和40分钟。即使在氨硼烷水解制氢过程中多次使用后，它们仍保持活性。
