A5015312371- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Advanced Photocatalysis Techniques
- Advanced MIMO Systems Optimization
- Cooperative Communication and Network Coding
- Advanced Wireless Communication Techniques
- Wireless Communication Networks Research
- Fuel Cells and Related Materials
- Advanced Wireless Network Optimization
- Supercapacitor Materials and Fabrication
- Electrochemical Analysis and Applications
- Catalytic Processes in Materials Science
- Wireless Networks and Protocols
- Quantum Dots Synthesis And Properties
- Advancements in Battery Materials
- Telecommunications and Broadcasting Technologies
- Ammonia Synthesis and Nitrogen Reduction
- Semiconductor materials and devices
- Advancements in Semiconductor Devices and Circuit Design
- Nanomaterials for catalytic reactions
- PAPR reduction in OFDM
- Orbital Angular Momentum in Optics
- Copper-based nanomaterials and applications
- Silicon Carbide Semiconductor Technologies
- Conducting polymers and applications
Xidian University
2021-2025
University of Electronic Science and Technology of China
2017-2025
Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital
2017-2025
The University of Melbourne
2022-2024
Guangxi University
2020-2024
Shandong University
2021-2024
Guizhou University
2022-2024
Shanghai Jiao Tong University
2021-2024
Hunan University of Humanities, Science and Technology
2023-2024
Tang Du Hospital
2023-2024
Understanding the origin of high activity Fe–N–C electrocatalysts in oxygen reduction reaction (ORR) is critical but still challenging for developing efficient sustainable nonprecious metal catalysts fuel cells and metal–air batteries. Herein, we developed a new highly active ORR catalyst containing Fe–Nx coordination sites Fe/Fe3C nanocrystals (Fe@C-FeNC), revealed its by intensively investigating composition structure their correlations with electrochemical performance. The detailed...
Developing bifunctional efficient and durable non-noble electrocatalysts for oxygen evolution reaction (OER) hydrogen (HER) is highly desirable challenging overall water splitting. Herein, Co-Mn carbonate hydroxide (CoMnCH) nanosheet arrays with controllable morphology composition were developed on nickel foam (NF) as such a electrocatalyst. It discovered that Mn doping in CoCH can simultaneously modulate the to significantly increase electrochemical active surface area exposing more...
Well-defined pomegranate-like N,P-doped Mo2C@C nanospheres were prepared by simply using phosphomolybdic acid (PMo12) to initiate the polymerization of polypyrrole (PPy) and as a single source for Mo P produce Mo2C nanocrystals. The existence PMo12 at molecular scale in polymer network allows formation with porous carbon shell peel nanocrystals well-dispersed N-doped matrix seeds. This nanostructure provides several favorable features hydrogen evolution application: (1) conductive...
Ni or Co is commonly required in efficient electrocatalysts for oxygen evolution reaction (OER). Although Fe much more abundant and cheaper, full-Fe Fe-rich catalysts suffer from insufficient activity. Herein, we discover that Se-doping can drastically promote OER on FeOOH develop a facile on-site electrochemical activation strategy achieving such Se-doped electrode via an FeSe precatalyst. Theoretical analysis systematic experiments prove enables as low-cost electrocatalyst. By optimizing...
Semiconductor-based photocatalytic H2 generation as a direct approach of converting solar energy to fuel is attractive for tackling the global and environmental issues but still suffers from low efficiency. Here, we report MoS2/CdS nanohybrid noble-metal-free efficient visible-light driven photocatalyst, which has unique nanosheets-on-nanorod heterostructure with partially crystalline MoS2 nanosheets intimately discretely growing on single-crystalline CdS nanorod. This not only facilitates...
ConspectusHydrogen is an ideal energy carrier and plays a critical role in the future transition. Distinct from steam reforming, electrochemical water splitting, especially powered by renewables, has been considered as promising technique for scalable production of high-purity hydrogen with no carbon emission. Its commercialization relies on reduction electricity consumption thus cost, calling highly efficient cost-effective electrocatalysts capability steadily working at high output. This...
Abstract The exploration of new efficient OER electrocatalysts based on nonprecious metals and the understanding relationship between activity structure are important to advance electrochemical water oxidation. Herein, we developed an electrocatalyst with nickel boride (Ni 3 B) nanoparticles as cores nickel(II) borate (Ni‐B i ) shells @NB) via a very simple facile aqueous reaction. This exhibited small overpotential 302 mV at 10 mA cm −2 Tafel slope 52 dec −1 . More interestingly, it was...
Despite the recent surge of interest in inorganic lead halide perovskite nanocrystals, there are still significant gaps their stability disturbance and understanding destabilization, assembly, growth processes. Here, we discover that polar solvent molecules can induce lattice distortion ligand-stabilized cubic CsPbI3, leading to phase transition into orthorhombic phase, which is unfavorable for photovoltaic applications. Such triggers dipole moment on CsPbI3 nanocubes, subsequently initiates...
Electrochemical activation is an effective and simple method to obtain in-situ surface modification of MOF materials away from thermal decomposition. However, the impact rate related phase transformation on OER intrinsic activity during electrochemical process often overlooked. Herein, we synthesized a kind Co-MOF with unique crystal structure in which center metals were coordinated oxygen nitrogen atoms two water molecules organic linkers. The bond strength between can be modulated by...
The development of highly stable and efficient catalysts for sluggish cathode oxygen reduction reaction (ORR) is extremely important the long-term operation commercialization proton exchange membrane fuel cells (PEMFCs) but still challenging. We present herein a facile strategy to efficiently embed Pt nanocrystals into N-doped porous carbon/carbon nanotubes (Pt@CNx/CNT). carbon shells not only effectively prevented from detachment, dissolution, migration, aggregation during accelerated...
Abstract Practical electrochemical water splitting requires cost‐effective electrodes capable of steadily working at high output, leading to the challenges for efficient and stable oxygen evolution reaction (OER). Herein, by simply using conductive FeS microsheet arrays vertically pre‐grown on iron foam (FeS/IF) as both substrate source in situ form aligned NiFe(OH) x nanosheets arrays, a hierarchical electrode with nano/micro sheet‐on‐sheet structure (NiFe(OH) /FeS/IF) can be readily...
Abstract Platinum is the most efficient catalyst for hydrogen evolution reaction in acidic conditions, but its widespread use has been impeded by scarcity and high cost. Herein, Pt atomic clusters (Pt ACs) containing Pt-O-Pt units were prepared using Co/N co-doped carbon (CoNC) as support. ACs are anchored to single Co atoms on CoNC forming strong interactions. Pt-ACs/CoNC exhibits only 24 mV overpotential at 10 mA cm −2 a mass activity of 28.6 A mg −1 50 mV, which more than 6 times higher...
Creating high-density durable bifunctional active sites in an air electrode is essential but still challenging for a long-life rechargeable zinc-air battery with appealing power density. Herein, we discover general strategy mediated by metastable rock salt oxides achieving well-defined transition-metal nanocrystals encapsulated N-doped carbon shells (M@NC) which are anchored on substrate porous network as highly and catalytic sites. Small-size (15 ± 5 nm) well-dispersed Co2Fe1@NC high...
Identification of active sites for highly efficient catalysts at the atomic scale water splitting is still a great challenge. Herein, we fabricate ultrathin nickel-incorporated cobalt phosphide porous nanosheets (Ni-CoP) featuring an heterometallic site (NiCo16–xP6) via boron-assisted method. The presence boron induces release-and-oxidation mechanism, resulting in gradual exfoliation hydroxide nanosheets. After subsequent phosphorization process, resultant Ni-CoP are implanted with...
Abstract Exploiting efficient urea oxidation reaction (UOR) and hydrogen evolution (HER) catalysts are significant for energy‐saving H 2 production through urea‐assisted water electrolysis, but it is still challenging. Herein, carbon‐encapsulated CoNi coupled with CoNiMoO (CoNi@CN‐CoNiMoO) prepared by solvothermal method calcination to enhance the activity/stability of electrolysis at large current density. It exhibits good activity UOR ( E 10/1,000 = 1.29/1.40 V) HER −10/−1000 −45/−245 mV)...
Urea-assisted water electrolysis integrated by a urea oxidation reaction (UOR) and hydrogen evolution (HER) is an efficient strategy for energy-saving production. However, its practical application requires catalysts with sufficient durability high-strength reactant/product diffusion capability under large current densities. Herein, the Co0.5NiS2–Ni3S2 coral-like nanorods (Co0.5NiS2–Ni3S2/NF) of electronic structure morphology regulation are rationally constructed. The heterostructure sulfur...
Quantum-dot-sensitized solar cell (QDSSC) has been considered as an alternative to new generation photovoltaics, but it still presents very low power conversion efficiency. Besides the continuous effort on improving photoanodes and electrolytes, focused investigation charge transfer at interfaces rational design for counter electrodes (CEs) are recently receiving much attention. Herein, core–shell nanowire arrays with tin-doped indium oxide (ITO) core Cu2S nanocrystal shell (ITO@Cu2S) were...
Strong metal–support interaction (SMSI), commonly happening between metal and oxide support, has drawn significant attention in heterogeneous catalysis due to its capability of enhancing the activity stability catalysts. Herein, strong carbon supports is discovered significantly boost performance for electrocatalytic CO2 reduction reaction (CO2RR). A molecular engineering strategy designed develop undoped, N-doped, S-doped, N,S-codoped porous with similar physical properties (denoted as C,...
Abstract The development of cost‐effective and applicable strategies for producing efficient oxygen evolution reaction (OER) electrocatalysts is crucial to advance electrochemical water splitting. Herein, a kinetically controlled room‐temperature coprecipitation developed as general strategy produce variety sandwich‐type metal hydroxide/graphene composites. Specifically, well‐defined α‐phase nickel cobalt hydroxide nanosheets are vertically assembled on the entire graphene surface...