Haonan Qin

ORCID: 0000-0002-1272-858X
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About
Contact & Profiles
Research Areas
  • Electrocatalysts for Energy Conversion
  • Electrochemical Analysis and Applications
  • Remote-Sensing Image Classification
  • Porphyrin and Phthalocyanine Chemistry
  • Fuel Cells and Related Materials
  • Advanced Image Fusion Techniques
  • CO2 Reduction Techniques and Catalysts
  • Spine and Intervertebral Disc Pathology
  • Metal-Organic Frameworks: Synthesis and Applications
  • Advanced Photocatalysis Techniques
  • Advanced Neural Network Applications
  • Advanced Image and Video Retrieval Techniques
  • Covalent Organic Framework Applications
  • Hippo pathway signaling and YAP/TAZ
  • Advanced Nanomaterials in Catalysis
  • Infrared Target Detection Methodologies
  • Extraction and Separation Processes
  • Spinal Fractures and Fixation Techniques
  • Cancer Research and Treatments
  • Cancer-related Molecular Pathways
  • Advanced battery technologies research
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Metal-Catalyzed Oxygenation Mechanisms
  • Electrochemical sensors and biosensors
  • Advanced Algorithms and Applications

Xidian University
2019-2025

Shaanxi Normal University
2020-2025

Nanjing University of Science and Technology
2025

University of Science and Technology of China
2023-2024

Nanjing Medical University
2021-2024

Zhengzhou University
2019-2024

Chinese Academy of Sciences
2023-2024

Huaian First People’s Hospital
2022-2024

Shanxi University
2023

Tibet University
2023

Synthesizing large-area free-standing covalent organic framework (COF) films is of vital importance for their applications but still a big challenge. Herein, we reported the synthesis large metalloporphyrin-based COF and oxygen electrocatalysis. The reaction meso-benzohydrazide-substituted metal porphyrins with tris-aldehyde linkers afforded at liquid-air interface. These can be scaled up to 3000 cm2 area display great mechanical stability structural integrity. Importantly,...

10.1002/anie.202214449 article EN Angewandte Chemie International Edition 2022-11-08

The electronic structure of metal complexes plays key roles in determining their catalytic features. However, controlling structures to regulate reaction mechanisms is fundamental interest but has been rarely presented. Herein, we report tuning Cu porphyrins switch pathways the hydrogen evolution (HER). Through controllable and regioselective β-oxidation porphyrin 1, synthesized analogues 2-4 with one or two β-lactone groups either a cis trans configuration. Complexes 1-4 have same Cu-N

10.1002/anie.202401074 article EN Angewandte Chemie International Edition 2024-02-07

The steric effects on the oxygen reduction reaction (ORR) have been rarely studied because O2 is small in size and ORR catalysts with only difference hindrance are difficult to be designed synthesized. Herein, we report homogeneous catalyzed by four Co porphyrin atropisomers tetrahydrofuran decamethylferrocene HClO4 at 298 K. All active selective for 2H+/2e– an activity order αααα > αααβ ααββ αβαβ. Kinetic studies revealed that same mechanism proton-coupled binding as rate-determining step.

10.1021/acscatal.4c01295 article EN ACS Catalysis 2024-04-16

Abstract In nature, cytochrome c oxidases catalyze the 4e − oxygen reduction reaction (ORR) at heme/Cu site, in which Cu I is used to assist O 2 activation. Because of thermodynamic barrier generate , synthetic Fe‐porphyrin/Cu complexes usually show moderate electrocatalytic ORR activity. We herein report on a Co‐corrole/Co complex 1‐Co for energy‐efficient ORR. By hanging Co II ion over corrole, realizes with half‐wave potential 0.89 V versus RHE, outstanding among corrole‐based...

10.1002/anie.202312255 article EN Angewandte Chemie International Edition 2023-11-03

Atom-precise metal nanoclusters (NCs) with large bulk (nuclearity >60) are important species for insight into the embryonic phase of nanoparticles and their top-down etching synthesis. Herein, we report a metastable rod-shaped 70-nuclei copper-hydride NC, [Cl@Cu

10.1021/jacs.3c13965 article EN Journal of the American Chemical Society 2024-01-26

Abstract Molecular electrocatalysis requires the immobilization of molecular catalysts on electrode materials for practical uses. Direct adsorption catalyst molecules is simple, but grafting through chemical bonds can significantly improve electrocatalytic efficiency and durability. However, designing synthesizing to simultaneously catalytic activities realize easy electrodes challenging. The study herein reports a one‐pot strategy graft Co corroles pyridine‐modified carbon nanotubes (CNTs)...

10.1002/adfm.202310820 article EN Advanced Functional Materials 2023-10-27

Comprehensive Summary Developing electrocatalysts with high activity and selectivity for the oxygen reduction reaction (ORR) is vital to promote performance of next‐generation energy technologies, which depend on efficiency catalytic dioxygen. In structure cytochrome c oxidases (C Os), a histidine imidazole residue binding axial position Fe plays crucial role in facilitating selective O 2 water. Inspired by nature, we herein report synthesis Co III corrole 1 tethered an ligand as well its...

10.1002/cjoc.202300294 article EN Chinese Journal of Chemistry 2023-06-28

Transition metal dichalcogenides (TMDs) are recognized as greatly promising substitutes for noble-metal-based catalysts hydrogen evolution reaction (HER). The hybrids containing Co3S4@MoS2 components demonstrate excellent electrocatalytic activity of HER. However, the more sustainable photocatalytic HER two-dimensional (2D) Co3S4@MoS2-based materials remain scarce. In this study, Cu0.9Co2.1S4@MoS2 composites were easily synthesized in situ by using bimetallic (Cu/Co) metal–organic frameworks...

10.1021/acsaem.8b01691 article EN ACS Applied Energy Materials 2019-01-18

Abstract Using functionalized supporting materials for the immobilization of molecular catalysts is an appealing strategy to improve efficiency electrocatalysis. Herein, we report covalent tethering cobalt porphyrins on phenolic resins ( PR ) improved electrocatalytic oxygen reduction reaction (ORR) and evolution (OER). A porphyrin bearing alkyl bromide substituent was covalently tethered resins, through substitution bromides with hydroxyl groups, afford molecule‐engineered Co‐PR ). The...

10.1002/cphc.202400017 article EN ChemPhysChem 2024-02-07

Abstract Synthesizing large‐area free‐standing covalent organic framework (COF) films is of vital importance for their applications but still a big challenge. Herein, we reported the synthesis large metalloporphyrin‐based COF and oxygen electrocatalysis. The reaction meso ‐benzohydrazide‐substituted metal porphyrins with tris‐aldehyde linkers afforded at liquid‐air interface. These can be scaled up to 3000 cm 2 area display great mechanical stability structural integrity. Importantly,...

10.1002/ange.202214449 article EN Angewandte Chemie 2022-11-08

To evaluate the curative efficacy by comparing perioperative characteristics and 1.5-year observational outcomes in 1-segment lumbar spondylolisthesis between traditional minimally invasive transforaminal interbody fusion (MIS-TLIF) optimized Endoscopic TLIF techniques.The study was a single-center, randomized controlled trial two different treatment approaches for spondylolisthesis. 102 patients treated MIS-TLIF (48 cases) or Endo-TLIF (54 were included from March 2018 to April 2019....

10.1016/j.clineuro.2021.107082 article EN cc-by-nc-nd Clinical Neurology and Neurosurgery 2021-12-01

In hyperspectral images (HSIs), spatial context provides complementary information to abundant spectral features. this paper, a united spectral-spatial framework named HTD-ViT based on vision transformer (ViT) is proposed for HTD tasks. The leverages the ViT learn discriminative features of each pixel and its neighboring pixels. Meanwhile, sequence construction operation uses spectrums in cross region centered selected produce corresponding processing. Furthermore, sample selection procedure...

10.1109/igarss46834.2022.9884695 article EN IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium 2022-07-17

In recent years, many hyperspectral target detection (HTD) methods based on advanced techniques have been proposed and achieved good results. However, the large amount of data produced by satellites airborne remote sensing instruments has posed new challenges for efficient massive images (HSIs). this paper, we propose a weakly supervised HTD framework transformer with distributed learning (HTDFormer), which capitalizes parallel processing capabilities multiple workers to efficiently handle...

10.1109/tgrs.2023.3317033 article EN IEEE Transactions on Geoscience and Remote Sensing 2023-01-01

Understanding electronic effects on catalysis from a mechanism point of view is fundamental significance but also challenging. We herein report the oxygen reduction reaction (ORR) with Fe porphyrins. By using FeIII tetraphenylporphyrin (TPP-Fe) and tetra(pentafluorophenyl)porphyrin (TPFP-Fe), we showed their different electrochemical chemical behaviors for ORR. Mechanism studies revealed that FeIII-superoxo species TPP-Fe can undergo smooth protonation trifluoroacetic acid (TFA)...

10.1002/cssc.202401739 article EN ChemSusChem 2024-08-30

10.1109/tcsvt.2025.3527930 article EN IEEE Transactions on Circuits and Systems for Video Technology 2025-01-01

As one of the critical reactions in biotransformation and energy conversion processes, oxygen reduction reaction (ORR) catalyzed by iron porphyrins has been widely explored electrochemical, spectroscopic, theoretical methods. However, experimental identification all proposed intermediates catalytic cycle is rather challenging mechanistic studies ORR driven electrochemical or chemical Herein, we report application mass spectrometry (EC-MS) (CR-MS) to situ uncover ORRs mediated an porphyrin...

10.1039/d5sc00102a article EN cc-by-nc Chemical Science 2025-01-01
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