Inside Back Cover: Gadolinium Changes the Local Electron Densities of Nickel 3d Orbitals for Efficient Electrocatalytic CO₂ Reduction (Angew. Chem. Int. Ed. 18/2022)

Abstract

A Ni‐Gd‐N ternary doped porous carbon black catalyst was developed for electrocatalytic CO2 reduction, as reported by Lang Xu and co‐workers in their Research Article (e202201166). NiI active sites with high product selectivity and Ni nanoparticles with high conductivity are integrated within one catalyst. The Gd atoms not only tailor the sizes of the Ni nanoparticles but also change the local densities of the Ni 3d orbitals, thus enabling the catalyst to achieve high faradaic efficiency, large current density, and excellent stability.

Boosting Industrial‐Level CO2 Electroreduction of N‐Doped Carbon Nanofibers with Confined Tin‐Nitrogen Active Sites via Accelerating Proton Transport Kinetics

“…[ 30 ] Besides, the electrochemical active surface area (ECSA) of these investigated catalysts were compared by calculating the double‐layer capacitance ( C dl ) (Figure S16, Supporting Information), and the results displayed that the Sn/NCNFs had a much higher value of 7.53 mF cm −2 (Figure 2g), which was 3.5 times and 4.1 times higher than that of NCNFs (2.13 mF cm −2 ) and Sn/CNFs (1.85 mF cm −2 ), respectively, demonstrating more exposed active sites in Sn/NCNFs. [ 31 ] To reveal active sites in catalysts, poisoning experiments were constructed by adding EDTA to the electrolyte as inhibitor to poison the metal‐N sites. It is clearly seen that in the electrolyte containing 0.2 m EDTA (Figure 2h; Figure S17, Supporting Information), the CO FEs of Sn/NCNFs decreased significantly at different applied potentials, while no obvious change in the CO 2 ER performance was observed for NCNFs, revealing the catalytic role of SnN sites in enhancing CO 2 ER activity.…”

Improving the performance of biomass-based electrocatalysts by means of hot pressing

“…37 The order of decreasing I D /I G is the order of decreasing degree of defects and also the order of decreasing surface area, pore volume, and nitrogen content, which is readily understood when it is realized that developing nanopores and doping nitrogen into the carbon structure bring about the increase in defects. 38…”

“…37 The order of decreasing I D /I G is the order of decreasing degree of defects and also the order of decreasing surface area, pore volume, and nitrogen content, which is readily understood when it is realized that developing nanopores and doping nitrogen into the carbon structure bring about the increase in defects. 38 Table 1 Data of pore and surface structures of HPBE and BE a Electrocatalyst S QSDFT (m 2 g À1 ) S 0-2 nm (m 2 g À1 ) S 2-50 nm (m 2 g À1 ) V QSDFT (cm 3 g À1 ) V 0-2 nm (cm 3 g À1 ) V 2-50 nm (cm 3 a S QSDFT and V QSDFT : surface area and volume of nanopores based on the QSDFT method, respectively; S 0-2 nm and V 0-2 nm : surface area and volume of micropores, respectively; S 2-50 nm and V 2-50 nm : surface area and volume of mesopores, respectively.…”

Zn–Y dual atomic site catalyst featuring metal–metal interactions as a nanozyme with peroxidase-like activity

“…8 Gd atoms were used to modulate the electronic structure of Ni 3d through the lanthanide contraction effect to enhance the electrocatalytic activity. 9 Yttrium is also a rare earth metal showing its prospects in homogeneous 10 and heterogeneous catalysis. 11 However, there is no report on SACs involving yttrium, which results in a lack of understanding of the characteristics of this element.…”