And high energy density of 15.6Wh kg 1 is obtained towards the DHBS sample with concentration of 2mmolL 1 when measured in 1molL 1 H 2 SO 4 . The present work would favors for understanding other supercapacitor systems possessing electron withdrawing/donating groups.doi:10.1016/j.electacta.2018.06.061Zhang Zhong JieChen...
Surface defect passivation of perovskite films through chemical interaction between specific functional groups and defects has been proven to be an effective technique for enhancing the performance and stability of perovskite solar cells (PSCs). However, an in-depth understanding of how these passivation...
Surface defect passivation of perovskite films through chemical interaction between specific functional groups and defects has been proven to be an effective technique for enhancing the performance and stability of perovskite solar cells(PSCs). However, an in-depth understanding of how these passivation ...
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Electron donating groups are generally ortho/para directors for electrophilic aromatic substitutions, while electron withdrawing groups are generally meta directors with the exception of the halogens which are also ortho/para directors as they have lone pairs of electrons that are shared with the aromati...
(DPT) by introducingvarious electron-donating/withdrawing groups (methoxy, t-butyl, H, F, and trif l uoromethyl) into itstwo peripheral benzene rings for use as electrode material in a Li-ion cell. By both the theoreticalDFT calculations and the practical cyclic voltammetry (CV) measurements,...
2) electron-donating and electron-accepting groups 供、吸电子基团 3) electron attractive group 电子吸引基团 4) acceptor group 吸电子基 5) electron donating group 给电子基团;推电子基团 6) electrophilic group 亲电子基团 补充资料:吸电子基团
amino phthalonitrileelectronic substituent effectsPerfluoro phthalonitrile substituted separately with perfluoroalkyl (EWG) and NH2, NHMe, and NMe2 (EDG) groups generate a series of aromatic C-H bonds-free nitriles that can now lose electrons, whose HOMO–LUMO gap is narrowed by EDG beyond the ...
methyl groupsThe properties of graphdiyne (GDY), such as energy gap, morphology, and affinity to alkali metals, can be adjusted by including electron-withdrawing/donating groups. The push-pull electron ability and size differences of groups play a key role on the partial property adjusting of ...
Charge-carrier recombinationHot-carriersSurface defect passivation of perovskite films through chemical interaction between specific functional groups and defects has been proven to be an effective technique for enhancing the performance and stability of perovskite solar cells(PSCs).However,an in-depth ...