Highly dispersed Pt boosts active Fe N formation in ammonia decomposition

Indriadi, Keshia Saradima; Han, Peijie; Ding, Shipeng; Yao, Bingqing; Furukawa, Shinya; He, Qian; Yan, Ning

doi:10.1016/s1872-2067(23)64465-1

Cited by 2 publications

(2 citation statements)

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“…To date, the development of ammonia decomposition catalysts with good low temperature activity remains a big challenge and becomes a hot topic over the past decades . Literature survey shows that catalysts used in ammonia decomposition are mainly Ru-, Ni-, and Fe-based ones. , Of these different catalysts, Ru-based catalysts showed the highest catalytic activity as Ru has a suitable nitrogen binding energy of ∼142 kcal·mol –1 , based on the theoretical calculations. , Choudhary et al studied different metallic catalysts and found that Ru/SiO 2 had the best performance followed by Ir/SiO 2 and Ni/SiO 2 . In specific, a NH 3 conversion of 97% was achieved for Ru/SiO 2 at 600 °C, indicating that lower temperature decomposition of NH 3 is possible, with Ru as the active component having the greatest potential.…”

Section: Introductionmentioning

confidence: 99%

“…13 Literature survey shows that catalysts used in ammonia decomposition are mainly Ru-, Ni-, and Fe-based ones. 14,15 Of these different catalysts, Ru-based catalysts showed the highest catalytic activity as Ru has a suitable nitrogen binding energy of ∼142 kcal•mol −116,17 based on the theoretical calculations. 4,18 Choudhary et al 19 studied different metallic catalysts and found that Ru/SiO 2 had the best performance followed by Ir/SiO 2 and Ni/SiO 2 .…”

Section: ■ Introductionmentioning

confidence: 99%

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Promotion of Low-Temperature Catalytic Activity of Ru-Based Catalysts for Ammonia Decomposition via Lanthanum and Cesium Codoping

Wang,

Luo,

Wang

et al. 2024

ACS Sustainable Chem. Eng.

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were synthesized via the wet impregnation method, which were then used for hydrogen production from ammonia decomposition. Of the catalysts prepared, RuLaCs/Al 2 O 3 exhibited the highest lowtemperature catalytic activity and greatest stability, achieving a NH 3 conversion of >99% at the temperature as low as 450 °C. It was discovered that the addition of La and Cs was able to promote the recombinative desorption of surface nitrogen atoms at active sites through the role of electron donor, thus promoting ammonia decomposition. The synergistic effect of La and Cs was thought to be the reason for significantly enhancing the catalytic performance of the catalyst. The continuous tests of more than 100 h indicated no activity deterioration for the developed catalysts, demonstrating an excellent stability and great potential for future commercial applications.

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