Ruichen Zhang

6 Questions 6 Answers 0 Followers

Questions related from Ruichen Zhang

When introducing -NH2 into MOFs, what's the difference between using NH2-functionalized organic linker and post-synthetic modification?

To make my question clear, let me give a specific example for discussion. UiO-66-NH2 is synthesized with 2-NH2-BDC as organic linker. In comparison, UiO-66 can be synthesized with BDC as organic...

12 December 2019 2,483 1 View

How to use NaBH4 to reduce Pd(II) to Pd(0) right after wet impregnation?

Hi! I wonder how to obtain Pd nanoparticles from the metal precursor solution H2PdCl4 via NaBH4 reduction? What are the specific reaction conditions and experimental protocols? Thanks!

12 December 2019 3,928 5 View

Is it possible to reduce Pd(II) to Pd(0) using H2 under room temp in a sealed autoclave?

Dear fellow researchers: I prepared Pd/MOFs powder via wet impregnation using PdCl2 as precursor solution. To reduce Pd(II) to Pd(0) before applying catalysis, and also to find a convenient...

12 December 2019 9,573 3 View

Does the phenomenon of MOFs dissolved in solvents necessarily mean that the crystal structure of the MOFs has been damaged?

When preparing Pd@MOFs catalysts via wet impregnation, I added carbon-dots solutions (synthesized from citric acid and ethylenediamine) into MOFs suspension in an attempt to facilitate the...

12 December 2019 2,827 3 View

How to interpret the changes in BET surface area and pore volume before and after metal loading?

As the figure shows, the BET surface area of Pd/MOF samples decreases while the pore volume increases compared with those of MOF precursors. The decrease of SBET could be caused by the...

12 December 2019 1,855 8 View

How will the drying process affect MOF crystallinity and particle size?

After centrifugation, I dried my MOF samples under 50C in a blast oven for many hours (didn't count exactly). However, my samples always became rock-like bulks after drying, which I had to grind...

12 December 2019 2,146 1 View