A5044208128- Electrocatalysts for Energy Conversion
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Fuel Cells and Related Materials
- Catalytic Processes in Materials Science
- Advanced battery technologies research
- Metal-Organic Frameworks: Synthesis and Applications
- Electrochemical Analysis and Applications
- Crystallography and molecular interactions
- Advancements in Battery Materials
- Advanced Photocatalysis Techniques
- Advanced Battery Materials and Technologies
- Lanthanide and Transition Metal Complexes
- Magnetism in coordination complexes
- Catalysis and Oxidation Reactions
- Advanced Nanomaterials in Catalysis
- Hydrogen Storage and Materials
- Covalent Organic Framework Applications
- Nanomaterials for catalytic reactions
- Carbon dioxide utilization in catalysis
- CO2 Reduction Techniques and Catalysts
- Astronomical Observations and Instrumentation
- Electrochemical sensors and biosensors
- Gamma-ray bursts and supernovae
- Nanocluster Synthesis and Applications
Northwestern Polytechnical University
2020-2025
Fujian Institute of Research on the Structure of Matter
2014-2022
Chinese Academy of Sciences
2014-2022
Nanjing University of Posts and Telecommunications
2021
Tsinghua University
2017-2020
University of Chinese Academy of Sciences
2006-2016
Fuzhou University
2015-2016
The search for a low-cost, ultrastable, and highly efficient non-precious metal catalyst substitute Pt in the oxygen reduction reaction (ORR) is extremely urgent, especially acidic media. Herein, we develop template-assisted pyrolysis (TAP) method to obtain unique Co with isolated single atomic sites anchored on hollow N-doped carbon spheres (ISAS-Co/HNCS). Both substrate endow excellent ORR performance. half-wave potential media approaches that of Pt/C. Experiments density functional theory...
FeCl1N4/CNS catalyst first realized a great improvement of ORR by controlling the electronic structure central metal with coordinated chlorine.
Abstract The oxidation of intracellular biomolecules by reactive oxygen species (ROS) forms the basis for ROS‐based tumor therapy. However, current therapeutic modalities cannot catalyze H 2 O and concurrently ROS generation, thereby leading to unsatisfactory efficacy. Herein, it is reported a bioinspired hollow N‐doped carbon sphere doped with single‐atom copper (Cu‐HNCS) that can directly decomposition both hydrogen peroxide ROS, namely superoxide ion (O • − ) hydroxyl radical (•OH),...
A novel polymer encapsulation strategy to synthesize metal isolated-single-atomic-site (ISAS) catalysts supported by porous nitrogen-doped carbon nanospheres is reported. First, precursors are encapsulated in situ polymers through polymerization; then, ISASs created within the polymer-derived p-CN controlled pyrolysis at high temperature (200-900 °C). Transmission electron microscopy and N2 sorption results reveal this material exhibit a nanospheric morphology, surface area (≈380 m2 g-1 ),...
Recognizing and controlling the structure-activity relationships of single-atom catalysts (SACs) is vital for manipulating their catalytic properties various practical applications. Herein, Fe SACs supported on nitrogen-doped carbon (SA-Fe/CN) are reported, which show high reactivity (97% degradation bisphenol A in only 5 min), stability (80% maintained after five runs), wide pH suitability (working range 3-11) toward Fenton-like reactions. The roles different N species these reactions...
Development of single-site catalysts supported by ultrathin two-dimensional (2D) porous matrix with ultrahigh surface area is highly desired but also challenging. Here we report a cocoon silk chemistry strategy to synthesize isolated metal embedded in 2D N-doped carbon nanosheets (M-ISA/CNS, M = Fe, Co, Ni). X-ray absorption fine structure analysis and spherical aberration correction electron microscopy demonstrate an atomic dispersion atoms on matrix. In particular, the Co-ISA/CNS exhibit...
Electrocatalysis of the four-electron oxygen reduction reaction (ORR) provides a promising approach for energy conversion, storage, and monitoring. However, it is always accompanied by hydrogen peroxide (H2O2) on most employed catalysts, which brings down electrocatalytic selectivity. Here, we report single-atom Co–N4 electrocatalyst ORR at an onset potential 0.68 V (vs RHE) in neutral media while with high H2O2 tolerance, outperforming commercial Pt electrocatalysts. Electrochemical kinetic...
The pH-universal ORR performance and reaction-mechanism scheme of the Fe 1 /d-CN catalyst, which acts as cathode for flexible quasi-solid-state alkaline/neutral rechargeable Zn–air batteries.
Single-atom catalysts (SACs) have been explored widely as potential substitutes for homogeneous catalysts. Isolated cobalt single-atom sites were stabilized on an ordered porous nitrogen-doped carbon matrix (ISAS-Co/OPNC). ISAS-Co/OPNC is a highly efficient catalyst acceptorless dehydrogenation of N-heterocycles to release H2 . also exhibits excellent catalytic activity the reverse transfer hydrogenation (or hydrogenation) store , using formic acid or external hydrogen source. The...
A novel adsorption–calcination strategy was developed to synthesize highly efficient Fe and Co dual metal single site ORR catalysts.
The rechargeable Zn–air batteries as an environmentally friendly sustainable energy technology have been extensively studied. However, it is still a challenge to develop non-noble metal bifunctional catalysts with high oxygen reduction well evolution reaction (ORR and OER) activity superior durability, which limit the large-scale application of batteries. Herein, we synthesized ultrastable FeCo electrocatalyst on Se-doped CNTs (FeCo/Se-CNT) via gravity guided chemical vapor deposition (CVD)...
Abstract Noble metals play a momentous role in heterogeneous catalysis but still face huge challenge selectivity control. Herein, we report isolating contiguous Pt atoms and forming Pt-Zn intermetallic nanoparticles as an effective strategy to optimize the of catalysts. Contiguous are isolated into single formed which supported on hollow nitrogen-doped carbon nanotubes (PtZn/HNCNT), confirmed by aberration-corrected high-resolution transmission electron microscopy X-ray absorption...
Abstract The generation of green hydrogen by water splitting is identified as a key strategic energy technology, and proton exchange membrane electrolysis (PEMWE) one the desirable technologies for converting renewable sources into hydrogen. However, harsh anode environment PEMWE oxygen evolution reaction (OER) involving four‐electron transfer result in large overpotential, which limits overall efficiency production, thus efficient electrocatalysts are needed to overcome high overpotential...
As a commercial electrode material for proton-exchange membrane water electrolyzers and fuel cells, Pt-based catalysts still face thorny issues, such as insufficient mass activity, stability, CO tolerance. Here, we construct bifunctional catalyst consisting of Pt-Er alloy clusters atomically dispersed Pt Er single atoms, which exhibits excellent durability, tolerance acidic hydrogen evolution oxidation reactions (HER HOR). The possesses remarkably high activity TOF HER at 63.9 times 7.2 more...
Abstract Developing a high‐efficiency, stable, and CO‐toxicant‐resistant low‐cost hydrogen oxidation reaction (HOR) electrocatalyst is challenging but vital for practical proton/anion exchange membrane fuel cells. Herein, an efficient pH‐universal HOR catalyst Pt 1 @Co CN fabricated, in which the electronic structure of single sites modulated by isolated Co atoms pre‐anchored on nitrogen‐doped carbon. exhibits superior activity durability under media than @CN (anchored carbon) commercial...
Abstract Ruthenium (Ru) is considered a promising candidate catalyst for alkaline hydroxide oxidation reaction (HOR) due to its hydrogen binding energy (HBE) like that of platinum (Pt) and much higher oxygenophilicity than Pt. However, Ru still suffers from insufficient intrinsic activity CO resistance, which hinders widespread use in anion exchange membrane fuel cells (AEMFCs). Here, we report hybrid (RuCo) NC+SAs /N‐CNT consisting dilute RuCo alloy nanoparticles atomically single Co atoms...
New luminescent Ln-MOFs, [Ln2(D-cam)(Himdc)2(H2O)2] (Ln = Eu 1, Tb 2, D-H2cam D-camphoric acid, H3imdc 4,5-imidazole dicarboxylic acid) have been synthesized via hydro(solvo)thermal reactions. X-ray single crystal structure analysis reveals that they are isomorphic and both crystallize in the orthorhombic space group Pna21. Compound 1 shows good chemical resistance to acidity alkalinity solutions with pH ranging from 2 13 is highly stable several boiling solvents, which make it potentially...
Development of noble-metal single atomic site catalysts with high metal loading is highly required for many important chemical reactions but proves to be very challenging. Herein, we report a Na2CO3 salt-assisted one-pot pyrolysis strategy from EDTA–Pt complex N-doped graphene isolated Pt sites (Pt-ISA/NG) up 5.3 wt %. The X-ray absorption fine structure analysis and spherical aberration-correction electron microscopy demonstrate an dispersion species on support stabilized by nitrogen in...
A novel dual-walled cage MOF with a high density of Lewis acid active sites and CO<sub>2</sub>-philic ligands exhibits excellent CO<sub>2</sub> capture conversion performance under mild environmentally friendly conditions.
Development of efficient and easy-to-prepare low-cost oxygen reaction electrocatalysts is essential for widespread application rechargeable Zn-air batteries (ZABs). Herein, we mixed NaCl ZIF-8 by simple physical milling pyrolysis to obtain a metal-free porous electrocatalyst doped with Cl (mf-pClNC). The mf-pClNC exhibits good reduction (ORR) activity (E1/2 =0.91 V vs. RHE) high stability in alkaline electrolyte, exceeding most the reported transition metal carbon-based being comparable...