Xiaochen Shen

ORCID: 0000-0002-7556-8296
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About
Contact & Profiles
Research Areas
  • Electrocatalysts for Energy Conversion
  • Advanced battery technologies research
  • Fuel Cells and Related Materials
  • Catalytic Processes in Materials Science
  • Electrochemical Analysis and Applications
  • Ionic liquids properties and applications
  • Advanced Photocatalysis Techniques
  • Advanced Memory and Neural Computing
  • Catalysis and Oxidation Reactions
  • Polymer Surface Interaction Studies
  • Covalent Organic Framework Applications
  • Hydrogen Storage and Materials
  • Metal-Organic Frameworks: Synthesis and Applications
  • Advanced Polymer Synthesis and Characterization
  • CO2 Reduction Techniques and Catalysts
  • Hydrogels: synthesis, properties, applications
  • Catalysts for Methane Reforming
  • Supercapacitor Materials and Fabrication
  • Ammonia Synthesis and Nitrogen Reduction
  • Plant Pathogens and Fungal Diseases
  • 2D Materials and Applications
  • Luminescence and Fluorescent Materials
  • Hybrid Renewable Energy Systems
  • Catalysis and Hydrodesulfurization Studies
  • Food Quality and Safety Studies

ShanghaiTech University
2025

Dalian University of Technology
2022-2024

Case Western Reserve University
2020-2024

University of South Carolina
2023-2024

China Tobacco
2010-2022

Sichuan Agricultural University
2022

Jilin University
2007-2021

University of Akron
2016-2021

Jilin Medical University
2016-2021

National Engineering Research Center for Information Technology in Agriculture
2020

Oxygen evolution reaction (OER) is a pivotal process in many energy conversion and storage techniques, such as water splitting, regenerative fuel cells, rechargeable metal-air batteries. The synthesis of stable, efficient, non-noble metal-based electrocatalysts for OER has been long-standing challenge. In this work, facile scalable method to synthesize hollow conductive iron-cobalt phosphide (Fe-Co-P) alloy nanostructures using an Fe-Co metal organic complex precursor described. Fe-Co-P...

10.1021/acsnano.7b04646 article EN ACS Nano 2017-12-06

Using surface-initiated atom-transfer radical polymerization, temperature-responsive block polymers were functionalized on the surface of silica nanocapsules (SNCs) by a "grafting-from" technique. Favipiravir, potential medicine candidate for treatment coronavirus disease (COVID-19), was encapsulated in polymer-coated SNCs and further incorporated into well-defined films layer-by-layer self-assembly. The multilayer composed poly(methacrylic acid) (PMAA) homopolymers exhibited...

10.1021/acsanm.1c03334 article EN ACS Applied Nano Materials 2021-12-09

Using surface-initiated atom transfer radical polymerization (ATRP), block polymers with a series of quaternization degrees were coated on the surface silica nanocapsules (SNCs) by "grafting-from" technique. Molnupiravir, an antiviral medicine urgently approved for treatment SARS-CoV-2, was encapsulated in polymer-coated SNCs and further incorporated into well-defined films polystyrene sulfonate (PSS) homopolymers layer-by-layer (LBL) self-assembly via electrostatic interactions. We...

10.1021/acsomega.2c03591 article EN cc-by-nc-nd ACS Omega 2022-08-15

A β-ketoenamine based covalent organic framework possesses high crystallinity, good porosity, stability and luminescence properties. It can serve as the first COF-based fluorescent pH sensor in aqueous solutions.

10.1039/c6cc05748a article EN Chemical Communications 2016-01-01

A robust, cationic, porous organic polymer (C-NSA<sub>Naph</sub>-HCP@Br), which exhibits excellent adsorption capacities for dyes and Cr<sub>2</sub>O<sub>7</sub><sup>2−</sup> in water with rapid rates, selectivity good recyclability, is reported.

10.1039/c8ta09145e article EN Journal of Materials Chemistry A 2018-01-01

Abstract One of the challenges in polymer electrolyte membrane fuel cells (PEMFCs) is developing cost‐effective, active and stable catalyst for oxygen reduction reaction (ORR). Platinum alloy‐based materials have drawn great attention been intensively investigated excellent activity property, with some them already exceeding 2020 DOE target ORR activity. In meantime, electrochemical stability these Pt alloys remains a challenge to be overcome. This review first highlights important...

10.1002/cnma.201900319 article EN publisher-specific-oa ChemNanoMat 2019-07-12

Oxygen evolution reaction (OER) is of great significance for hydrogen production via water electrolysis, which, however, demands development highly active, durable, and cost-effective electrocatalysts in order to stride into a renewable energy era. Herein, efficient long-term durable OER by coupling B P an amorphous porous NiFe-based electrocatalyst reported, which possesses metallic bulk structure high corrosion resistance, overcomes the issues associated with currently used catalyst...

10.1002/smll.201901020 article EN publisher-specific-oa Small 2019-05-30

Designing highly active oxygen reduction reaction (ORR) catalysts is crucial to boost the fuel cell economy. Previous research has mainly focused on Pt-based alloy in which surface Pt solely site and activity improvement was challenged by discovered scaling relationship. Herein we report a new concept of utilizing dual sites for ORR demonstrate its effectiveness synthesizing SnOx/Pt–Cu–Ni heterojunctioned catalyst. A maximum 40% enhancement apparent specific activity, corresponds 10-fold...

10.1021/jacs.9b02286 article EN Journal of the American Chemical Society 2019-06-03

Active sites play an essential role in heterogeneous catalysis and largely determine the reaction properties. Yet identification study of active remain challenging owing to their dynamic behaviors during process issues with current characterization techniques. This article provides a short review research progresses metal oxide catalysts, which covers past achievements, status, perspectives this field. In particular, concepts theories are introduced. Major experimental computational...

10.3390/catal8100478 article EN Catalysts 2018-10-20

This perspective delves into electrochemically active and regenerable liquid organic hydrogen carriers (LOHCs), exploring their electrochemical properties applications in storage, regenerative fuel cells, batteries, flow batteries.

10.1039/d4ta01893a article EN cc-by-nc Journal of Materials Chemistry A 2024-01-01

In this investigation, we used a kind of polyelectrolyte, sodium alginate, as model biomacromolecule to investigate the aggregation behaviors in aqueous solution after partial protonation carboxylate groups alginate molecules. It is demonstrated that assemblies with core−shell structure can be generated by chains using protons released gradually from reaction K2S2O8 water at 70 °C solution. The cross-linked are pH sensitive and change hollow medium relatively high value. This approach avoids...

10.1021/bm0501510 article EN Biomacromolecules 2005-06-17

Pt-based alloy electrocatalysts with both good oxygen reduction reaction (ORR) activity and stability have been widely recognized as the key points to realize fuel cell economy, which however has remained a challenge in research field. Here, we report an achievement of improved ORR catalyst by incorporating post-transition-metal indium into Pt–Ni nanoparticles. Theoretical simulations suggest introduction would effectively increase lattice atom diffusion energy barrier decrease particle...

10.1021/acscatal.9b03430 article EN ACS Catalysis 2019-11-05

We propose one new adsorption model with work function as additional descriptor to more accurately describe the energy.

10.1039/c7cp01817g article EN Physical Chemistry Chemical Physics 2017-01-01

(i) The three-dimensional conductive network of CNFs improves intrinsic activity. (ii) Fe–Phen complex encapsulated in ZIF-8 provides atomically dispersed FeN x sites. (iii) Hierarchical Fe–N –CNFs presents excellent ORR performance.

10.1039/d2qm00763k article EN Materials Chemistry Frontiers 2022-01-01

10.1109/icassp49660.2025.10888867 article EN ICASSP 2022 - 2022 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2025-03-12

Understanding the growth pathway of faceted alloy nanoparticles at atomic level is crucial to morphology control and property tuning. Yet, it remains a challenge due complexity process technical limits modern characterization tools. We report combinational use multiple cutting-edge in situ techniques study octahedral Pt3Ni nanoparticles, which reveal particle facet formation mechanisms. Our studies confirm initiates from Pt nuclei generation, followed by continuous reduction that...

10.1038/s41467-018-06900-z article EN cc-by Nature Communications 2018-10-22

Redox flow batteries (RFBs) are membrane-separated rechargeable cells with redox electrolytes, offering the potential for large-scale energy storage and supporting renewable grids. Yet, creating a cost-effective, high-performance RFB system is challenging. In this work, we investigate an Fe/Mn alkaline based on [(TEA)Fe-O-Fe(TEA)]3-/4- MnO4-/2- couples theoretical cell voltage of ∼1.43 V. This combination has not been systematically studied previously, but it can lead to very low-cost...

10.1021/acsami.3c15803 article EN ACS Applied Materials & Interfaces 2024-04-04

Inside out and back again: A novel nanogel composed of two biocompatible components, namely chitosan ethylenediaminetetraacetic acid, is presented shows surface switching both composition charge in response to pH changes the medium (see picture). The pH-dependent switch this fully reversible particle integrity maintained entire range owing gel nature system.

10.1002/anie.200701368 article EN Angewandte Chemie International Edition 2007-08-08
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