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Articles by Mingrun Li
Stable high-valent iridium single atoms for high-temperature CO 2 electrolysis
Abstract Single-atom catalysts (SACs) offer high atomic efficiency and catalytic activity but are prone to aggregation and degradation under high-temperature conditions. Here, we propose a thermally and electrochemically stable high-valent iridium single atom synthesis strategy based on strong metal-support interactions (SMSI) to enhance high-temperature CO2 electrolysis performance in solid oxide electrolysis cells (SOECs).
Mild-condition methane conversion with oxygen by an ultrasound-catalysis coupling process
Abstract Mild-condition methane (CH4) oxidation into valuable chemicals using earth-abundant oxygen (O2) is a highly desirable yet challenging process due to the chemical inertness of CH4 and the low reactivity of O2. Herein, we report an ultrasound-catalysis coupling strategy for highly efficient conversion of CH4 into high-value oxygenates under mild conditions, using O2 as an oxidant and carbon nanotube-supported platinum nanoparticles (Pt/CNT) as a catalyst.
Spatiotemporal alignment of hole transfer and water oxidation for highly efficient photocatalytic water splitting - Nature Communications
Abstract Photocatalytic overall water splitting remains limited by inefficient charge separation and utilization in reactions. Al-doped SrTiO3 exhibiting near-100% apparent quantum efficiency for overall water splitting indicates nearly complete charge separation and surface catalytic efficiency. Although Al doping has been assumed to enhance charge separation and transfer, the exact role of Al is still unclear.
Constructing 2D Phthalocyanine Covalent Organic Framework with Enhanced Stability and Conductivity via Interlayer Hydrogen Bonding as Electrocatalyst for CO2 Reduction
Conflict of Interest The authors declare no conflict of interest. Supporting Information Filename Description smll202310147-sup-0001-SuppMat.pdf5.8 MB Supporting Information References 1a) , , , , , , Science 2005, 310, 1166; b) , , , , , , , Science 2007, 316, 268; c) , , , , , , , , , , Chem. Rev. 2020, 120, 8814; d) , , , , , , , , , J. Am. Chem. Soc. 2019, 141, 17431; e) , , , Chem. Soc. Rev. 2022, 51, 6307; f) , , , , , , Acc. Chem. Res. 2020, 53, 2225. 2a) , , , , , , , , , Nat. Commun.
Hierarchy Control of MFI Zeolite Membrane towards Superior Butane Isomer Separation Performance
Communication PDF ShareShare Abstract Microstructural optimization (such as thickness and preferred orientation) is a major concern for performance enhancement of zeolite membranes. In this study, we demonstrated that the introduction of hierarchy easily enabled concurrent thickness reduction and orientation control of zeolite membranes. Specifically, hierarchical MFI zeolite membranes comprising higher degree of (h0h) preferentially oriented ultrathin (ca.
Regulating the location of framework aluminium in mordenite for the carbonylation of dimethyl ether
Regulating the location of framework aluminium in mordenite for the carbonylation of dimethyl ether Mordenites with framework Si/Al ratios of 6.5-10.2 were hydrothermally synthesized by simply varying the concentrations of silica and alumina sources in the raw gel without using any template. However, their catalytic performance for dimethyl ether carbonylation kept almost identical.
DME carbonylation over a HSUZ-4 zeolite
DME carbonylation over a HSUZ-4 zeolite Zeolite-catalyzed carbonylation of dimethyl ether to methyl acetate represents a new route to synthesize acetyls. A rod-shaped HSUZ-4 zeolite, with intersecting 10-member ring and 8-member ring channels, showed exceptionally high activity and durability, as compared to the HZSM-35 sharing the simialr pore structure. The abundant openings of 8-member ring pore, as determined by the shape of HSUZ-4, facilitated the diffusion of the reactive molecules.
A Venus-flytrap-inspired pH-responsive porous membrane with internal crosslinking networks
A Venus-flytrap-inspired pH-responsive polybenzimidazole (PBI) porous membrane is designed and fabricated for flow battery application. In the design, PBI membranes with tunable pores are firstly created by introducing hydrophilic sulfonated poly (ether ether ketone) (SPEEK) in the cast solution. Then the internal crosslinking networks are built on the pore walls by in situ acid-base reaction between PBI and SPEEK to improve membrane selectivity, while keep high conductivity.
Perovskite decorated with oxygen vacancies and Fe-Ni alloy nanoparticles as high-efficiency electrocatalyst for oxygen evolution reaction
Perovskite oxides have emerged as promising electrocatalysts for the sluggish oxygen evolution reaction (OER) which limits the efficiencies of rechargeable energy storage technologies and hydrogen production from water splitting. Understanding materials characteristics that affect OER activity is of paramount importance to the optimization of perovskite oxides for OER. Herein, a series of Sr2Fe1.3Ni0.2Mo0.5O6-?
Atomic-scale topochemical preparation of crystalline Fe3+-doped β-Ni(OH)2 for ultrahigh-rate oxygen evolution reaction
Development of high-efficient and affordable electrocatalysts for the sluggish oxygen evolution reaction (OER) has been considered as a great challenge to the practical applications for water splitting and in rechargeable metal-air batteries. Herein, we report active and robust OER catalysts of Fe3+-doped ?-Ni(OH)2 prepared via an atomic-scale topochemical transformation route.
Low Temperature H2-plasma Assisted NOx Storage and Reduction over the Combined Pt/Ba/Al and LaMnFe Catalyst
A model catalyst of the Pt/Ba/Al2O3 (PBA) type exhibited poor activity in NOx storage-reduction (NSR) at low temperatures (? 300°C) even under plasma-enhanced process. In order to achieve optimal NOx removal efficiency during plasma-assisted NOx storage-reduction in the presence of H2O and CO2, a PBA+LMF (LaMn0.9Fe0.1O3) catalyst was prepared by mechanical mixing.
Enhancement of oxygen evolution performance through synergetic action between NiFe metal core and NiFeOx shell
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Achievement of visible-light-driven Z-scheme overall water splitting using barium-modified Ta3N5 as a H2-evolving photocatalyst
Ta N is one of the most promising photocatalyst candidates for solar water splitting, but it still remains challenging to achieve overall water splitting via Ta N -based photocatalysts regardless of whether it uses a one step or two step method. Here we will address the relatively poor photocatalytic proton reduction of Ta N with an effort for the promotion of charge separation via barium modification.
Achievement of Visible-light-driven Z-scheme Overall Water Splitting Using Barium-modified Ta3N5 as a H2-evolving Photocatalyst
Ta3N5 is one of the most promising candidate photocatalysts for solar water splitting, but it still remains challenging to achieve overall water splitting via Ta3N5-based photocatalysts regardless of one step or two steps method. Here we will address the relatively poor photocatalytic proton reduction of Ta3N5 with an effort on the promotion of charge separation via barium modification.
A Reconstruction Strategy to Synthesize Mesoporous SAPO Molecular Sieve Single Crystals with High MTO Catalytic Activity
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Oxygen transport kinetics of MIEC membranes coated with different catalysts
Oxygen permeation through mixed ionic-electronic conducting membrane may be controlled by oxygen bulk diffusion and/or oxygen interfacial exchange kinetics. In this article, we chose BaCe Fe O (BCF) as a representative to study the oxygen transport resistances of the membrane coated with different porous catalysts, including BCF itself, Ba Sr Co Fe O (BSCF) and Sm Sr CoO (SSC).
Transfer hydrogenation of nitroarenes with hydrazine at near-room temperature catalysed by a MoO2 catalyst
We present an experimental and computational study of the elementary steps of hydrazine hydrogen transfer on crystalline MoO , and demonstrate its unique bifunctional metallic-basic properties in a catalytic hydrogenation reaction.
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