Journal Article

PUBDB-2026-00193

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png SSZ‐13 Zeolite with Isolated Co²⁺ Sites as an Efficient and Durable Catalyst System for Non‐Oxidative Ethane Dehydrogenation

Zhang, Q.Extern* ; Zhang, T.Extern* ; Liu, B. ; Fedorova, E.Extern* ; Doronkin, D. E.Extern* ; Kondratenko, E. (Corresponding author)Extern*

2026
Wiley-VCH Weinheim

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Please use a persistent id in citations: doi:10.1002/anie.202519600

Abstract: Non-oxidative dehydrogenation of ethane (EDH) is an attractive method for on-purpose ethene production, but achieving high activity and, especially, durability with catalysts based on earth-abundant metals remains challenging. Herein, we introduce the Co/SSZ-13 system with exclusively divalent cobalt (Co²⁺) ions that meets the above requirements. The use of complementary characterization techniques enabled us to reveal two Co²⁺ species: Co²⁺─Z2 located in the six-membered-ring windows and [Co(OH)]⁺─Z in the eight-membered-ring windows, with Z representing a charged zeolite framework site. A quantitative correlation between the rate of ethene formation and the site population establishes Co²⁺─Z2 as the active species. In situ X-ray absorption spectroscopy confirms their structural and electronic stability under high-temperature reaction conditions. The optimized 0.9Co/SSZ-13 (0.9Co) catalyst showed highly durable operation over 200 dehydrogenation/oxidative regeneration cycles at 600–650°C lasting for 150 h with industrially relevant productivity. In this regard, it outperforms almost all previously developed catalysts even those with platinum as an active component. The obtained results uncover the atomic-level origins of EDH activity/durability of the Co/SSZ-13 system and highlight the critical role of metal site location in designing highly active, selective, and durable catalysts for on-purpose ethene production.

Note: Open Access

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Contributing Institute(s):

1. PETRA III Extension (FS-PEX)
2. DOOR-User (DOOR ; HAS-User)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
2. FS-Proposal: I-20230372 (I-20230372) (I-20230372)

Experiment(s):

1. PETRA Beamline P65 (PETRA III)

Appears in the scientific report 2026

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Database coverage:
; Chemical Reactions ; Clarivate Analytics Master Journal List ; Current Contents - Life Sciences ; Current Contents - Physical, Chemical and Earth Sciences ; DEAL Wiley ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 15 ; Index Chemicus ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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