研究目的
Investigating the formation mechanism of porous rose-like WO3 and its photoresponse and stability study.
研究成果
Porous rose-like WO3 was successfully fabricated, showing enhanced light response and stability under photocorrosion. The addition of SDBS controlled the morphology and induced oxygen defects, leading to a narrower band gap and higher stability.
研究不足
The study focuses on the fabrication and characterization of porous rose-like WO3, but the practical application in photocatalysis and electrocatalysis needs further investigation.
1：Experimental Design and Method Selection:
Chemical bath deposition (CBD) method was used to fabricate rose-like H2WO4, followed by annealing to obtain porous rose-like WO3 with oxygen defects.
2：Sample Selection and Data Sources:
Sodium tungsten oxide dihydrate (Na2WO4·H2O), oxalic acid dihydrate (H2C2O4·2H2O), hydrochloric acid (HCl), and sodium dodecyl benzene sulfonate (SDBS) were used as starting materials.
3：List of Experimental Equipment and Materials:
XRD, SEM, TEM, XPS, FTIR, ESR, UV-vis DRS, TG, and EIS were used for characterization.
4：Experimental Procedures and Operational Workflow:
H2WO4 was fabricated by CBD method, then annealed in N2 atmosphere to obtain WO
5：Data Analysis Methods:
XRD for structure, SEM and TEM for morphology, XPS for chemical state, FTIR for bond vibration, ESR for oxygen defects, UV-vis DRS for band gap, TG for thermal analysis, and EIS for charge transfer resistance.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容-
Transmission electron microscope
TEM, JEM-2100
JEOL
Observation of nanostructure
-
Thermogravimetric analysis
TGA/SDTA851E
Thermo Fisher Scientific
Thermal analysis
-
UV-vis spectrophotometer
UV-2550
Shimadzu
UV-vis diffuse reflectance experiment
-
Fourier-transform infrared spectroscopy
Nicolet iS10
Thermo Fisher Scientific
Understanding the bond vibration in samples
-
Scanning electron microscope
FESEM, JEM-7800F
JEOL
Observation of morphology and nanostructure
-
X-ray powder diffraction
D8 Advance
Bruker AXS Corporation
Characterization of the structure of WO3 samples
-
Brunauer–Emmett–Teller surface areas and pore size measurement instrument
Micromeritics ASAP 2460
Measurement of surface areas and pore size
-
X-ray photoelectron spectroscopy
PHI Quantera II
ULVAC-PHI
Confirmation of elements and valence state
-
Electron spin resonance measurement
Bruker A300
Characterization of oxygen defects
-
Electrochemical workstation
CHI 760
Chenhua Instrument Company
EIS measurements
-
登录查看剩余8件设备及参数对照表
查看全部
