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Synergy of Single-Atom Ni1 and Ru1 Sites on CeO2 for Dry Reforming of CH4.
A synergy effect of two sets of single-atom sites (Ni1 and Ru1) anchored on the surface of a CeO2 nanorod, demonstrating a new method for designing a catalyst with high activity and selectivity at a relatively low temperature.
Catalytic Conversion of Carbon Dioxide to Methane on Ruthenium–Cobalt Bimetallic Nanocatalysts and Correlation between Surface Chemistry of Catalysts under Reaction Conditions and Catalytic…
Catalytic conversion of CO2 to CH4 on cobalt oxide and Ru-doped cobalt oxide nanorods was studied with in-house ambient pressure X-ray photoelectron spectroscopy (AP–XPS) using monochromated Al Kα. A…
Single rhodium atoms anchored in micropores for efficient transformation of methane under mild conditions
The first C–H bond of CH4 is activated by Rh1O5 anchored on the wall of micropores of ZSM-5; the formed CH3 then couples with CO and OH, to produce acetic acid over a low activation barrier.
Low-Temperature Transformation of Methane to Methanol on Pd1 O4 Single Sites Anchored on the Internal Surface of Microporous Silicate.
Thermodynamic calculations suggest that the reaction toward methanol production is highly favorable compared to formation of a byproduct, methyl peroxide.
WGS catalysis and in situ studies of CoO(1-x), PtCo(n)/Co3O4, and Pt(m)Co(m')/CoO(1-x) nanorod catalysts.
Water-gas shift (WGS) reactions on Co3O4 nanorods and Co3O4 nanorods anchoring singly dispersed Pt atoms were explored through building correlation of catalytic performance to surface chemistry of…
Probing the low-temperature water-gas shift activity of alkali-promoted platinum catalysts stabilized on carbon supports.
- B. Zugic, Shiran Zhang, D. Bell, F. Tao, M. Flytzani-Stephanopoulos
- ChemistryJournal of the American Chemical Society
- 13 February 2014
In situ atmospheric-pressure X-ray photoelectron spectroscopy experiments demonstrated that oxidized platinum Pt-OHx contributions in the Pt 4f signal are higher in the presence of sodium, providing evidence for a previously reported active-site structure of the form Pt-Nax-Oy-(OH)z.
A Ship-in-a-Bottle Strategy To Synthesize Encapsulated Intermetallic Nanoparticle Catalysts: Exemplified for Furfural Hydrogenation
Intermetallic compounds are garnering increasing attention as efficient catalysts for improved selectivity in chemical processes. Here, using a ship-in-a-bottle strategy, we synthesize single-phase…
In-situ studies of nanocatalysis.
- Shiran Zhang, L. Nguyen, Y. Zhu, Sihui Zhan, Chia‐Kuang Tsung, F. Tao
- ChemistryAccounts of Chemical Research
- 25 April 2013
The new chemistries and structures of nanocatalysts during reactions revealed with in-situ analytical techniques are reviewed, including the evolution of composition, oxidation state, phase, and geometric structure of the catalyst surface, and the sintering of catalysts.
Preferential Oxidation of CO in H2 on Pure Co3O4−x and Pt/Co3O4−x
Driven by the development of a catalyst made of earth‐abundant elements for on‐board purification of H2 of this energy conversion technology, preferential oxidation (PROX) on pure Co3O4 nanorods and…