Tetraethylorthosilicate (TEOS; 98%; Sinopharm Chemical Reagent Co., Ltd.), TPAOH (25% aqueous solution, Macklin), 2-butanol (C4H10O, 99%; Macklin), potassium chloride (KCl, 99.8%; Macklin), hexaammineruthenium(III) chloride ([Ru(NH3)6]Cl3, 99%, Strem), and sodium chloride (NaCl, 99.5%; Macklin) were used without any further purification. [Fe(phen)3]Cl2 was synthesized in our laboratory, according to the well-documented procedure. Briefly, 0.994 g of iron(II) chloride tetrahydrate (FeCl2·4H2O, 99.95%; Macklin) was dissolved in 250 ml of deionized (DI) water. Consequently, 2.97 g of 1,10-phenanthroline monohydrate (C12H8N2·H2O, 98%; Macklin) was added into this aqueous solution. After vigorous stirring for 3 hours, [Fe(phen)3]Cl2 solution (20 mM) was prepared and stored in the dark before use. Glass plates (2 cm × 2 cm) were immerged in piranha solution (H2SO4/H2O2 = 2/1 v/v) and heated at 90°C for 1 hour, then washed with copious DI water, and stored in DI water before seed layer deposition. γ-Al2O3 discs (Fraunhofer IKTS, Germany) were pretreated with ∼6% hydrochloric acid and extensively washed with water afterward. Pt electrodes (Shanghai Yueci Electronic Technology Co., Ltd) and Al plates were polished with sandpapers, thoroughly washed with ethanol, and stored in DI water before deposition.
Tpaoh
Manufactured by Maclin Biochemical Technology
Sourced in China
TPAOH is a laboratory reagent used in the preparation of various materials, including zeolites and other porous materials. It serves as a templating agent and pH regulator in specific synthesis procedures. The core function of TPAOH is to facilitate the controlled formation of desired structures and compositions during the material development process.
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Lab products found in correlation
3 protocols using tpaoh
1
Synthesis of Organometallic Complexes and Substrate Preparation
2
Synthesis of Ti3C2 and Ti2C MXenes
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Ti3C2 MXenes were synthesized
by a two-step exfoliation process
according to the literature.53 (link) Generally,
2.0 g of Ti3AlC2 MAX powder (Forsman Scientific
Co., Ltd., Beijing, China) was immersed in 30 mL of 40% HF aqueous
solution (Aladdin Co., Ltd., Shanghai, China) and electromagnetically
stirred for 24 h at room temperature to completely remove Al atoms
in the Ti3AlC2 MAX phase. For
Ti2C, the synthesis process is quite simpler, and the concentration
of HF is only 20%. The etched Ti3C2 or Ti2C MXene powders were collected by centrifugation process and
washed with water and ethanol for 4–5 times. Then, the prepared
Ti3C2 or Ti2C MXene powders were
dispersed in 30 mL of TPAOH (tetrapropylammonium hydroxide 25 wt %
aqueous solution, Macklin Co., Ltd., Shanghai, China) and electromagnetically
stirred for three days at a speed of about 800 rpm/min to delaminate
the etched nanosheets. Then, Ti3C2 or Ti2C MXene powders were collected by centrifugation process and
washed with ethanol and water three times to remove the residual TPAOH.
Finally, the prepared Ti3C2 or Ti2C MXene powders were collected for Raman detection. The Au–Ti3C2 nanosheets were synthesized by reducing HAuCl4 to Au nanoparticles on Ti3C2 MXene
nanosheets.54 (link)
by a two-step exfoliation process
according to the literature.53 (link) Generally,
2.0 g of Ti3AlC2 MAX powder (Forsman Scientific
Co., Ltd., Beijing, China) was immersed in 30 mL of 40% HF aqueous
solution (Aladdin Co., Ltd., Shanghai, China) and electromagnetically
stirred for 24 h at room temperature to completely remove Al atoms
in the Ti3AlC2 MAX phase. For
Ti2C, the synthesis process is quite simpler, and the concentration
of HF is only 20%. The etched Ti3C2 or Ti2C MXene powders were collected by centrifugation process and
washed with water and ethanol for 4–5 times. Then, the prepared
Ti3C2 or Ti2C MXene powders were
dispersed in 30 mL of TPAOH (tetrapropylammonium hydroxide 25 wt %
aqueous solution, Macklin Co., Ltd., Shanghai, China) and electromagnetically
stirred for three days at a speed of about 800 rpm/min to delaminate
the etched nanosheets. Then, Ti3C2 or Ti2C MXene powders were collected by centrifugation process and
washed with ethanol and water three times to remove the residual TPAOH.
Finally, the prepared Ti3C2 or Ti2C MXene powders were collected for Raman detection. The Au–Ti3C2 nanosheets were synthesized by reducing HAuCl4 to Au nanoparticles on Ti3C2 MXene
nanosheets.54 (link)
3
Synthesis of Nb2C and Ta2C MXene Nanosheets
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The Nb2C and Ta2C MXene nanosheets were synthesized successfully by a two-step exfoliation process according to the literature [48 (link)]. Firstly, HF acid etching method was adopted to completely remove Al atoms of NbAl2C and TaAl2C MAX phase. The 3.0 g of NbAl2C and 4.0 g of TaAl2C MAX powder, which are purchased from Forsman Scientific of Beijing, were immersed in 30 mL of a 40% HF aqueous solution (Aladdin Co., Ltd., Shanghai, China). At room temperature, the NbAl2C and TaAl2C mixed solutions were electromagnetic stirred 15 days and 2 days, respectively. Then, the etched Nb2C and Ta2C MXene powder were centrifugalized and washed 5 times with water and ethanol. Then, in order to enlarge the interlayer distance of stacked nanosheets, the prepared Nb2C and Ta2C MXene powder dispersed in 50 mL of tetrapropylammonium hydroxide (TPAOH) (25 wt% aqueous solution, Macklin Co., Ltd., Shanghai, China) and electromagnetic stirred 3 days or longer time at room temperature to obtain the more uniform and thinner nanosheets. These delaminated Nb2C and Ta2C powder were collected by centrifugation and washed more than three times with ethanol to remove the residual TPAOH. Finally, the synthesized sample powder was dispersed in deionized water and freeze-dried to improve the stratification effect.
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