•A unique dual S-scheme heterojunction Cu2O/Ni2Al-LDH@MIL-53(Fe) is constructed.•The ternary composite achieves an excellent photocatalytic H2production rate.•Electrostatic forces and coordination interactions accelerates electron migration.•DFT calculations and experiments elucidate dual S-scheme...
Ni分别以Ni(NO_3)_2·6H_2O和γ-Al_2O_3为二价和三价阳离子源,采用尿素水解法在γ-Al_2O_3载体上合成Ni-Al-LDH水滑石结构,并对其进行了XRD和FT-IR表征.以此为前驱体通过高温焙烧制得Ni-Al-LDH/γ-Al_2O_3催化剂.与等体积法制备的Ni/γ-Al_2O_3催化剂相比,Ni-Al-LDH/γ-Al_2O_3催化剂...
The construction of three-dimensional (3D) Ni2+-Al3+-LDH/γ-Fe2O3-Cd2+-Ni2+-Fe3+-layered double hydroxide (LDH) structures (S1–S6) with magnetic properties and different (γ-Fe2O3-Cd2+-Ni2+-Fe3+-LDH)/(Ni2+-Al3+-LDH) ratios were successfully prepared. The effects of these ...
IONSMesoporous Ni/Al-Layered double hydroxide (Ni/Al-LDH) surface has been assembled with metal oxides (Fe2O3). The obtained nanocomposite structure has been tested as probe electrode for the electrochemical detection of mercury Hg (II) in solution. An electrochemical study of the CPE-Fe2O3@...
Ni3(HAB)2Au@ZnNiAl-LDHRu@MIL-53(Al)-NH2Ultra-sensitive miRNA-155 detectionAnovel electrochemiluminescence (ECL) biosensor was developed for the ultrasensitive detection of miRNA-155, based on the synergistic combination of multifunctional nanomaterials. The biosensor employed a conductive metal鈥搊rg...
Ni-Al2O3催化剂γ-戊内酯催化加氢以NO-3插层类水滑石(NiAl-NO3-LDH)为前驱体制备了一系列不同Ni/Al摩尔比的Ni-Al2 O3催化剂,考察了其催化乙酰丙酸液相加氢性能.表征结果表明,随着Ni/Al摩尔比的增加,类水滑石层板结构中存在的游离态γ-AlOOH物种逐步演变为游离的Ni(OH)2物种,制备的催化剂中金属-载体相互...
Compared with the pure LDH precursor, Ni- Mg-Al-LDHs/纬-Al2O3 had much greater mechanical strength, because of the 纬-Al2O3 support. This feature extendsthe long lifetime of catalyst at high temperatures. X-ray diffraction (XRD), transmission electron microscopy (TEM), N2-adsorption-...
Compared with the pure LDH precursor, Ni-Mg-Al-LDHs/纬-Al2O3had much greater mechanical strength, because of the 纬-Al2O3support. This feature extends the long lifetime of catalyst at high temperatures. X-ray diffraction (XRD), transmission electron microscopy (TEM), N2-adsorption-...
NaOH concentration has a slight influence on CO2 conversion and stability of the resultant Ni/MgO-Al2O3 catalyst. The Ni/MgO-Al2O3 prepared from the modified [Ni,Mg,Al]-LDH with 0.1 mol/L NaOH exhibits the best stability and anti coke deposit ability. CH4 and CO2 conversions retain at...
The conversion has been clearly evidenced by the change of CN characteristic FTIR bands of Zn–CN solution before and after adding Ni(NO3)2. The intercalation and efficient removal of CN have also been confirmed through the formation of LDH crystals XRD and SEM. In particular, a set of ...