Bio-inspired design: bulk iron–nickel sulfide allows for efficient solvent-dependent CO₂ reduction

Abstract

The electrocatalytic reduction of carbon dioxide (CO2RR) to valuable bulk chemicals is set to become a vital factor in the prevention of environmental pollution and the selective storage of sustainable energy.

Bio-inspired hydrophobicity promotes CO2 reduction on a Cu surface

“…Improving selectivity towards CO 2 reduction, particularly towards products containing multiple carbons, remains a major priority in this field. Hitherto implemented strategies have included surface modifications, 7,8 adjusting surface pH 9 and the use of non-aqueous solvents, 10 however the most effective approaches can be summarised into three categories: (1) Morphology: nanowires, 11 nanowhiskers, 12 nanoparticles, 13 nanoprisms 14 and nanodendrites 15,16 present high catalytic surface areas that have shown appreciable selectivity. (2) Carbon supports: carbon frameworks and gas diffusion layers loaded with Cu have shown generation of C 2 products up to 80%.…”

Sustainable and rapid preparation of nanosized Fe/Ni-pentlandite particles by mechanochemistry

“…M ¼ Fe, Co, Ni], recently emerged as promising materials for catalytic purposes 1,2 (e.g. for CO 2 reduction 3,4 and water splitting [5][6][7][8][9][10][11][12] ), energy storage applications 13,14 as well as magnetic devices. 15 This widespread interest can be attributed to the chemically robust nature of pentlandites, its pseudo-metallic conductivity as well as their large exibility of stoichiometric compositions.…”

Tailored Transition‐Metal Coordination Environments in Imidazole‐Modified DNA G‐Quadruplexes

“…In contrast to htelL 2 4 ,t wo of the four ligands were placed in the loops and two closet ot he terminal G-tetrad, prearranging them in atetrahedral geometry ( Figure 5). Surprisingly,t his change already led to significant higher thermals tabilities of htelL 2S 4 B( T m = 37 8C) and htelL 2S 4 C (T m = 42 8C) compared to htelL 2S 4 (T m = 33 8C) in the absence of transition metals, highlighting the crucial rule of the loop com- [4][5][6][7] .Ina ), decreasing Cu II -mediated stabilization with an increasei nl igandn umber from four to six is observed, whereas in b), the opposite effectiso bserved, that is, an increased stabilizationf rom four to six ligands. c) Schematic illustration of the fine-tuningofC u II and Ni II affinities.…”

“…LGG GGG htelAGGGTT AGGGTT AGGGTT AGGG htelL 2 AGGTTT ALGG TT AGG LTT ATGG htelL 2 BAGGGTL TGGGTT AGG GTL TGG G htelL 3 AGG LTT ALGGTT AGG LTT ATGG htelL 3 BAGGGTL TGGGTT AGG GLT LGG G htelL 4 AGG LTT ALGGTT AGG LTT ALGG htelL 4 BAGGTLT LGG TTAG G L TLAG G htelL 4 CAGGTLT LGG TTAG GT LTL GG htelL 5 AGG LTL TLGG TT AGG LTT ALGG htelL 6 AGG LTL TLGG TT AGG LTL TLGG htelL 7 AGG LTLL TL GGT TAGG LT LTL GG complex. [18] positiono nG -quadruplex stabilities.…”

“…Improving or modifying the structure and function of these coordination compounds requires al aborious variation of donor site number,p osition and chemistry, if no modularapproach can be chosen. [5] Ad ifferent strategy to tackle this issue is to follow closer the natural pattern and utilize peptides or proteins to design defined coordination environments. Therefore, natural protein scaffolds can be covalently or noncovalentlym odified with catalytically active metalc omplexes, even those that do not occur in nature.A lternatively,d en ovo designed folding motifs-typically alpha helices and beta barrels-are synthesized and connectedt oa rrange ligating amino acid side chains in the desired way around am etal binding site.…”