Pengxin Liu

ORCID: 0000-0002-2332-4652
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Research Areas
  • Catalytic Processes in Materials Science
  • Nanomaterials for catalytic reactions
  • Advanced Photocatalysis Techniques
  • Electrocatalysts for Energy Conversion
  • Catalysis and Oxidation Reactions
  • Copper-based nanomaterials and applications
  • Ammonia Synthesis and Nitrogen Reduction
  • Electronic and Structural Properties of Oxides
  • Magnesium Oxide Properties and Applications
  • Nanocluster Synthesis and Applications
  • Asymmetric Hydrogenation and Catalysis
  • Mesoporous Materials and Catalysis
  • Metal-Organic Frameworks: Synthesis and Applications
  • CO2 Reduction Techniques and Catalysts
  • Soft Robotics and Applications
  • Molecular Junctions and Nanostructures
  • Magnetism in coordination complexes
  • Lanthanide and Transition Metal Complexes
  • Assembly Line Balancing Optimization
  • Crystallization and Solubility Studies
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Nanoparticle-Based Drug Delivery
  • Catalysis for Biomass Conversion
  • Adipokines, Inflammation, and Metabolic Diseases
  • Natural Antidiabetic Agents Studies

ShanghaiTech University
2022-2025

Minzu University of China
2024-2025

Qingdao University
2024

Affiliated Hospital of Qingdao University
2024

East China Normal University
2024

Tianjin University of Technology and Education
2022-2023

Collaborative Innovation Center of Chemistry for Energy Materials
2013-2022

Xiamen University
2011-2022

ETH Zurich
2020-2021

Dalian University of Technology
2020

Atomically dispersed noble metal catalysts often exhibit high catalytic performances, but the loading density must be kept low (usually below 0.5%) to avoid formation of nanoparticles through sintering. We report a photochemical strategy fabricate stable atomically palladium-titanium oxide catalyst (Pd1/TiO2) on ethylene glycolate (EG)-stabilized ultrathin TiO2 nanosheets containing Pd up 1.5%. The Pd1/TiO2 exhibited activity in hydrogenation C=C bonds, exceeding that surface atoms...

10.1126/science.aaf5251 article EN Science 2016-05-12

Surface coordination chemistry of nanomaterials deals with the on how ligands are coordinated their surface metal atoms and influence properties at molecular level. This Perspective demonstrates that there is a strong link between shape-controlled synthesis, many intriguing nanomaterials. While small adsorbates introduced in synthesis can control shapes nanocrystals by minimizing energy via preferential specific facets, properly nanoparticles readily promote catalysis steric interactions...

10.1021/jacs.6b10978 article EN Journal of the American Chemical Society 2017-01-13

Abstract Atomically dispersing metal atoms on supports provides an ideal strategy for maximizing utilization catalysis, which is particularly important fabricating cost‐effective catalysts based Earth‐scarce metals. However, due to the high surface energy and thus instability of single atoms, it remains challenging fabricate stable atomically dispersed catalysts. Here, strategies stabilizing various are summarized. Based enhance interaction between support prevent sintering several...

10.1002/smtd.201700286 article EN cc-by Small Methods 2017-12-18

Hollow mesoporous silica spheres have recently attracted increasing attention. However, effective synthesis of uniform hollow with controllable well-defined pore structures for fundamental research and practical applications has remained a significant challenge. In this work, straightforward "cationic surfactant assisted selective etching" synthetic strategy was developed the preparation high-quality either wormhole-like or oriented shell. The as-prepared large surface area, high volume,...

10.1039/c0nr00893a article EN Nanoscale 2011-01-01

The design and synthesis of hollow/yolk-shell mesoporous structures with catalytically active ordered shells can infuse new vitality into the applications these attractive structures. In this study, we report that aluminosilica be easily prepared by using silica spheres as precursors. By simply treating a hot alkaline solution in presence sodium aluminate (NaAlO2) cetyltrimethylammonium bromide (CTAB), solid directly converted high-quality hollow perpendicular pore channels. On basis...

10.1021/nn3011703 article EN ACS Nano 2012-04-13

Air-stable atomically thick copper nanosheets are prepared and used for selective electrochemical reduction of CO 2 into CO.

10.1126/sciadv.1701069 article EN cc-by-nc Science Advances 2017-09-01

Abstract Metal-support interaction is one of the most important parameters in controlling catalysis supported metal catalysts. Silica, a widely used oxide support, has been rarely reported as an effective support to create active metal-support interfaces for promoting catalysis. In this work, by coating Cu microparticles with mesoporous SiO 2 , we discover that Cu/SiO interface creates exceptional effect promote catalytic hydrogenation esters. Both computational and experimental studies...

10.1038/s41467-018-05757-6 article EN cc-by Nature Communications 2018-08-16

Abstract A versatile system combining chemotherapy with photothermal therapy for cancer cells using Pd nanosheet‐covered hollow mesoporous silica nanoparticles is reported. While the core can be used to load anticancer drugs (i.e., doxorubicin) chemotherapy, nanosheets on surface of particles convert NIR light into heat therapy. More importantly, loading nanospheres dramatically increase amount cellular internalization nanosheets: almost 11 times higher than unloaded nanosheets. The...

10.1002/smll.201200962 article EN Small 2012-08-20

Simple shape control: Ultrathin Pd nanosheets are readily fabricated by simply mixing [Pd2(μ-CO)2Cl4]2− with H2O at ambient temperature. The as-prepared surface clean and serve as an excellent platform to evaluate the effect of organic capping agents on catalytic electrocatalytic properties nanocrystals.

10.1002/anie.201303772 article EN Angewandte Chemie International Edition 2013-06-26

The interfacial sites of metal-support interface have been considered to be limited the atomic region metal/support perimeter, despite their high importance in catalysis. By using single-crystal surface and nanocrystal as model catalysts, we now demonstrate that overgrowth atomic-thick Cu

10.1038/s41467-022-30327-2 article EN cc-by Nature Communications 2022-05-11

Single-atom nanozymes (SAzymes) open new possibilities for the development of artificial enzymes that have catalytic activity comparable to natural peroxidase (POD). So far, most efforts focused on structural modulation Fe-N4 moiety mimic metalloprotein heme center. However, non-heme-iron POD with much higher activity, example, HppE, has not been mimicked successfully due its complexity. Herein, carbon dots (CDs)-supported SAzymes twisted, nonplanar Fe-O3N2 active sites, highly similar...

10.1021/acs.nanolett.3c02406 article EN Nano Letters 2023-09-05

Photocatalytic oxidative dehydrogenation of ethane offers a promising approach for producing ethylene under mild conditions. However, achieving high yields and selectivity is challenging due to the C-H bond activation barrier in tendency overoxidation CO2. In this study, we demonstrate that TiO2 with highly dispersed AuPd nanoparticles serves as an efficient selective photocatalyst O2 flow reactor. The optimized Au0.33Pd0.67/TiO2 achieves up 20.3 mmol g-1 h-1 91.5% selectivity, resulting...

10.1021/acsami.5c00183 article EN ACS Applied Materials & Interfaces 2025-02-24

10.1093/nsr/nwy051 article EN cc-by National Science Review 2018-04-27

Open AccessCCS ChemistryCOMMUNICATION1 Jun 2019Cu2O-Supported Atomically Dispersed Pd Catalysts for Semihydrogenation of Terminal Alkynes: Critical Role Oxide Supports Kunlong Liu, Ruixuan Qin, Lingyun Zhou, Pengxin Qinghua Zhang, Wentong Jing, Pengpeng Ruan, Lin Gu, Gang Fu* and Nanfeng Zheng* Liu Collaborative Innovation Center Chemistry Energy Materials, State Key Laboratory Physical Solid Surfaces, Department Chemistry, College Chemical Engineering, Xiamen University, 361005 (China) ,...

10.31635/ccschem.019.20190008 article EN cc-by-nc CCS Chemistry 2019-06-01

Abstract Synthesizing high‐quality two‐dimensional nanomaterials of nonlayered metal oxide is a challenge, especially when long‐range single‐crystallinity and clean high‐energy surfaces are required. Reported here the synthesis single‐crystalline MgO(111) nanosheets by two‐step process involving formation ultrathin Mg(OH) 2 as precursor, their selective topotactic conversion upon heating under dynamic vacuum. The defect‐rich surface displays terminal ‐OH groups, three‐coordinated O 2− sites...

10.1002/anie.202013196 article EN Angewandte Chemie International Edition 2020-11-02

Abstract The largest Ln–Fe metal cluster [Gd 12 Fe 14 (μ 3 ‐OH) 4 6 ‐O) (TEOA) (CH COO) 16 (H 2 O) 8 ]⋅(CH CN) ⋅(H 20 ( 1 ) and the core–shell monodisperse of a @SiO =[Gd ] 2+ were prepared. Experimental theoretical studies on magnetic properties reveal that encapsulation one into silica nanosphere not only effectively decreases intermolecular interactions but also significantly increases zero‐field splitting effect outer layer 3+ ions.

10.1002/anie.201705697 article EN Angewandte Chemie International Edition 2017-07-18

As a frontier of heterogeneous catalysis, single-atom catalysts (SACs) have been extensively studied fundamentally. One obstacle that limits the industrial application SACs is lack synthetic method can prepare on large scale. Wet-chemistry methods are conventionally used to nanoparticle-based might be solution. In this work, we report coprecipitation using ethylenediaminetetraacetic acid (EDTA) as an equilibrium regulator synthesize series atomically dispersed 3d metal over Mg(OH)2 support....

10.1021/acsami.4c17626 article EN ACS Applied Materials & Interfaces 2025-01-04

Diabetic kidney disease (DKD) is one of the complications diabetes mellitus, which triggers fibrosis and eventually develops into end-stage renal disease. Nuciferine (NF) most important functional components in lotus leaves (LL), but its role mechanism for treatment DKD are unclear. A high-fat-diet (HFD)-induced model KK-AY mice was established this study. NF significantly improved blood glucose biochemical indices mice. Furthermore, reduced levels mALB, UCRE, Scr, BUN urine. Further, extent...

10.1021/acs.jafc.4c08844 article EN Journal of Agricultural and Food Chemistry 2025-02-24

Titanium (Ti), the ninth-abundant element of Earth crust, distributes widely in rocks, soils, waters and bodies almost all organisms. The solution chemistry Ti(IV), most stable oxidation state Ti, is key distribution, transformation utilization Ti element. Despite its pervasiveness nature chemical industry, speciation Ti(IV) cations aqueous remains controversial after decades researches. Herein, aided by combined state-of-the-art characterizations, we discover that hydrated predominantly...

10.26434/chemrxiv-2025-p1734 preprint EN cc-by-nc-nd 2025-03-13
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