A5000241020- Electrocatalysts for Energy Conversion
- Fuel Cells and Related Materials
- Advanced battery technologies research
- Advanced Photocatalysis Techniques
- Catalytic Processes in Materials Science
- Catalysis and Hydrodesulfurization Studies
- Carbon and Quantum Dots Applications
- RNA and protein synthesis mechanisms
- Phytoplasmas and Hemiptera pathogens
- Nanomaterials for catalytic reactions
- Neurobiology and Insect Physiology Research
- TiO2 Photocatalysis and Solar Cells
- Bacteriophages and microbial interactions
- Insect symbiosis and bacterial influences
- Semiconductor materials and devices
- Nanoparticles: synthesis and applications
- Metalloenzymes and iron-sulfur proteins
- Hydrogen Storage and Materials
- Insect-Plant Interactions and Control
- Insect Resistance and Genetics
- Graphene and Nanomaterials Applications
- Advanced Battery Materials and Technologies
- Cocoa and Sweet Potato Agronomy
- Thermal Expansion and Ionic Conductivity
- Genomics and Phylogenetic Studies
Max Planck Institute for Polymer Research
2020-2024
Jiangsu University
2014-2024
Nitrogen-doped graphitic carbon materials hosting single-atom iron (Fe-N-C) are major non-precious metal catalysts for the oxygen reduction reaction (ORR). The nitrogen-coordinated Fe sites described as first coordination sphere. As opposed to good performance in ORR, that evolution (OER) is extremely poor due sluggish O-O coupling process, thus hampering practical applications of rechargeable zinc (Zn)-air batteries. Herein, we succeed boosting OER activity Fe-N-C by additionally...
Metal single-atom catalysts (M-SACs) have emerged as an attractive concept for promoting heterogeneous reactions, but the synthesis of high-loading M-SACs remains a challenge. Here, we report multilayer stabilization strategy constructing in nitrogen-, sulfur- and fluorine-co-doped graphitized carbons (M = Fe, Co, Ru, Ir Pt). precursors are embedded into perfluorotetradecanoic acid multilayers further coated with polypyrrole prior to pyrolysis. Aggregation metals is thus efficiently...
Abstract The development of iron and nitrogen co‐doped carbon (FeNC) electrocatalysts for the oxygen reduction reaction (ORR) in proton‐exchange membrane fuel cells (PEMFCs) is a grand challenge due to low density accessible FeN 4 sites. Here, an situ trapping strategy using nitrogen‐rich molecules (e.g., melamine, MA) demonstrated enhance amount sites FeNC electrocatalysts. melamine can participate coordination Fe ions zeolitic imidazolate frameworks form 6 within precursors. These are...
We report a F-doped FeNC catalyst with improved ORR performance. The enhanced performance is associated the large BET surface area, abundant single Fe atoms, and strong electron-withdrawing F-doping.
Iron atoms coordinated with nitrogen (FeNx) sites in Fe–N–C catalysts are widely accepted as the main active for oxygen reduction reaction (ORR). Introducing sulfur (S)-functionalities carbon to tailor FeNx centers can further promote their ORR performance acidic media. Here, we report an approach synthesize FeN4 supported on N/S-codoped graphitic (FeN4/NSC) by situ addition of thiourea molecules into Fe-doped zeolitic imidazole framework (ZIF-8) precursors and subsequent pyrolysis. The...
Aqueous zinc-ion batteries (AZIBs) using ZnSO4 aqueous electrolytes complement Li-ion and offer high safety, low cost, scalability. However, an inferior cycle life, attributed to the generation of basic layered double hydroxides (LDHs) on cathode during cycling, hampers development AZIBs. Although Zn(CF3SO3)2 (Zn(OTf)2) demonstrate exceptional performance, their higher cost in comparison offsets electrochemical stability benefits. Toward this end, we propose a fluorinated interphase strategy...
Abstract Single‐atom catalysts (SACs), where individual metal atoms are anchored on support, hold great promise for electrocatalytic hydrogen evolution reactions (HERs). The inherent simplicity of the single‐atom center restricts opportunities further enhancement. Binuclear SACs, incorporating two different sites, can improve HER kinetics. However, underlying mechanisms at binuclear sites complex and not fully understood, hampering design new efficient catalyst structures. Here, a...
Developing efficient non-precious metal catalysts for oxygen electrocatalysis is crucial advancing renewable energy storage systems such as rechargeable Zn-air batteries. Nitrogen-doped carbon (M-N-C) materials with atomically dispersed sites, particularly Fe-N-C, exhibit remarkable activity the reduction reaction (ORR); however, their performance in evolution (OER) remains unsatisfactory. In this work, we present fabrication of Fe, Co, and Ni trimetallic single-atom catalysts, which...
The graphene aerogels supporting Ag and CeO2 nanoparticles (NPs) (Ag/CeO2/GA) with bifunctional performances have been fabricated by a modified gelatinization reaction method. Through the control of GO concentration ultrasonic-assisted prereduction process, small NPs can be dispersed highly into porous structure GA. integration hierarchical synergistic effect between grant them properties organic pollutant removing (100% methylene blue 81.8% bisphenol A were degraded within 12 min 4 h,...
Basic helix-loop-helix (bHLH) proteins are highly conserved DNA-binding transcription factors of a large superfamily. Animal bHLH play important regulatory roles in various developmental processes such as neurogenesis, myogenesis, heart development, and hematopoiesis. The jewel wasp (Nasonia vitripennis) is good model organism hymenoptera insects for studies evolutionary genetics. In this study, we identified 48 genes the genome N. vitripennis. According to phylogenetic analysis, based on...
Since the proposition of introns-early hypothesis, although many studies have shown that most eukaryotic ancestors possessed intron-rich genomes, evidence intron existence in genomes ancestral bacteria has still been absent. While not a single found all protein-coding genes current bacteria, analyses on bacterial horizontally transferred into eukaryotes at ancient time may provide ancestors. In this study, gene encoding capsule biosynthesis protein CapI was genome sea anemone, Nematostella...
Dual-atom catalysts (DACs) have arisen as a novel type of heterogeneous catalyst that extends from single-atom (SACs) by incorporating two kinds metals. These materials demonstrated enhanced performance when compared to SACs. The choice metal precursors plays an important role in the synthesis DACs. Here, we choose Fe and Co DAC models study types, contents, molar ratios precursors, oxygen reduction reaction (ORR) activity. Fe,Co DACs were synthesized adsorption–annealing approach, using...