Efficient CO2 reduction MOFs derivatives transformation mechanism revealed by in-situ liquid phase TEM

A rational design of functional porous frameworks for electrocatalytic CO2reduction reaction

“…52 Regarding the preparation of functional porous frameworks for application in the ECO 2 RR, the selected element type includes Cu, Co, Ni, Fe, and Zn elements with various catalytic selectivity, Sc, Mn, Y, and Re elements with CO selectivity, and In, Sn, and Bi elements with HCOOH selectivity. 23–30 Especially, owing to the proper connection between Δ G (*CO) and Δ G (*H), Cu has been demonstrated to be the most promising element with superior proton–electron transfer and C–C coupling ability, thus generating a series of C 1 , C 2 and C 2+ products during the ECO 2 RR, including major products ( e.g. , HCOOH, CH 4 , CH 3 OH, C 2 H 4 , and CH 3 CH 2 OH) and minor products ( e.g.…”

“…24 Also, a Co transition metal hydroxide (TMH) was found to effectively suppress the HER and boost the catalytic selectivity for HCOOH. 23 The research on Co-based catalysts for the ECO 2 RR greatly widens the design of Co-based functional porous frameworks to probe the corresponding structure–activity relationships.…”

“…14h). 23 Initially, the voids in the MOFs migrated and merged to form nanosized bubbles owing to their structural collapse. Under the condition of slow diffusion, the limited supply of reaction reagent triggered the slow formation of metastable nanosized bubbles in ZIF-67, further resulting in the generation of nanocages inside ZIF-67.…”

“…, Cu, Co, Ni, Fe, and Zn), metals with CO selectivity (including Sc, Mn, Y, and Re), and metals with HCOOH selectivity (such as In, Sn, and Bi). 23–30 Among them, the Cu element has been demonstrated to exhibit the greatest potential for the ECO 2 RR, which is capable of generating a series of hydrocarbons, e.g. , HCOOH, CH 4 , CH 3 OH, C 2 H 4 , and CH 3 CH 2 OH.…”

CO2-Derived Nanocarbons with Controlled Morphology and High Specific Capacitance

“…products. − Nonvolatile solid nanocarbons are very attractive end products since they are suitable for long-term and safe storage. Moreover, they possess a great potential for applications in many fields, including energy storage materials. ,,, Different nanocarbon morphologies such as graphene, carbon nanotubes, nanofibers, nano-onions, nanospheres, nanocubes, nanosponges, or nanoscaffolds were derived from CO 2 by applying several methods like plasma, , electrochemical (molten salts ,,− and room temperature ,, ), and catalytic liquid metal , methods and conversion with the usage of reducing agents (hydrides/borohydrides ,, and alkali/alkaline earth metals ,,− ). The plasma and molten salt-assisted electrochemical methods are maybe the oldest methods used for CO 2 conversion to nanocarbons which, however, utilize sophisticated facilities.…”