Abstract
Developing high-activity and high-sulfur capacity adsorbent for reactive adsorption desulfurization (RADS) can be challenging when the relationship between rate-determining steps and synergetic metal-sulfur acceptor interaction is poorly understood. Herein, we report the desulfurization performance of Mn-doped Pt/ZnO with different Mn amounts and calcination temperatures under atmospheric RADS of dibenzothiophene (DBT) to understand rate-determining steps. Results suggested that the C-S cleavage of DBT and direct transfer of sulfur from PtSx to the sulfur acceptor were two rate-determining steps and relied on Pt and sulfur acceptor states. The Pt/ZnO-1MnO-400 was verified as the most outstanding adsorbent with 100 % desulfurization efficiency, 0.316 g-S/g-Ads sulfur capacity, and 55.3 h−1 TOF, attributing to form small Pt (∼2.5 nm) and agglomerate-free sulfur acceptor (∼35 nm) particles. This work provides innovative insight into the relationship between rate-determining steps and synergetic Pt-sulfur acceptor interaction, which paves the way for the design and synthesis of efficient adsorbent for RADS.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
