Kim, Chansol Song, Ji-Yoon Choi, Changhyeok Ha, Jin Pil Lee, Wonmoo Nam, Yoon Tae Lee, Dong-myeong Kim, Gunjoo Gereige, Issam Jung, Woo-Bin Lee, Hyunjoo Jung, Yousung Jeong, Hyeonsu Jung, Hee-Tae 2024-01-19T11:02:41Z 2024-01-19T11:02:41Z 2022-09-15 2022-10 0935-9648 https://pubs.kist.re.kr/handle/201004/114513 Ruthenium (Ru) is the most widely used metal as an electrocatalyst for nitrogen (N-2) reduction reaction (NRR) because of the relatively high N-2 adsorption strength for successive reaction. Recently, it has been well reported that the homogeneous Ru-based metal alloys such as Ru-Rh, Ru-Pt, and Ru-Co significantly enhance the selectivity and formation rate of ammonia (NH3). However, the metal combinations for NRR have been limited to several miscible combinations of metals with Ru, although various immiscible combinations have immense potential to show high NRR performance. In this study, an immiscible combination of Ru and copper (Cu) is first utilized, and homogeneous alloy nanoparticles (Ru-Cu NPs) are fabricated by the carbothermal shock method. The Ru-Cu homogeneous NP alloys on cellulose/carbon nanotube sponge exhibit the highest selectivity and NH3 formation rate of approximate to 31% and -73 mu mol h(-1) cm(-2), respectively. These are the highest values of the selectivity and NH3 formation rates among existing Ru-based alloy metal combinations. English WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Atomic-Scale Homogeneous Ru-Cu Alloy Nanoparticles for Highly Efficient Electrocatalytic Nitrogen Reduction Article 10.1002/adma.202205270 1 Advanced Materials, v.34, no.40 Advanced Materials 34 40 N scie scopus 000849571800001 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article AMBIENT CONDITIONS RATIONAL DESIGN AMMONIA CATALYSTS ELECTROREDUCTION FIXATION METALS carbothermal shock cellulose electrocatalytic nitrogen reduction homogeneous alloys immiscible metals rapid cooling process ruthenium