12503-49-0Relevant articles and documents
Nanoporous NiSb to Enhance Nitrogen Electroreduction via Tailoring Competitive Adsorption Sites
Fan, Guilan,Xu, Wence,Li, Jinhan,Chen, Jia-Liang,Yu, Meng,Ni, Youxuan,Zhu, Shengli,Su, Xun-Cheng,Cheng, Fangyi
, (2021/09/06)
Ambient nitrogen reduction reaction (NRR) is attracting extensive interest but still suffers from sluggish kinetics owing to competitive rapid hydrogen evolution and difficult nitrogen activation. Herein, nanoporous NiSb alloy is reported as an efficient electrocatalyst for N2 fixation, achieving a high ammonia yield rate of 56.9 μg h?1 mg?1 with a Faradaic efficiency of 48.0%. Density functional theory calculations reveal that in NiSb alloy, Ni favors N2 hydrogenation while the neighboring Sb separates active sites for proton and N2 adsorption, which optimizes the adsorption/desorption of intermediates and enables an energetically favorable NRR pathway. This work indicates promising electrocatalytic application of the alloys of 3d and p block metals toward the NRR and provides an intriguing strategy to enhance the reduction of inert molecules by restraining the competitive hydrogen adsorption.
Enthalpies of formation of some 3d Transition Metal-Antimony compounds by high temperature direct synthesis calorimetry
Meschel, S. V.,Nash, Philip
, (2020/08/21)
In this work we have performed a calorimetric investigation of some thermoelectric compounds, which are useful for energy savings, but do not contain toxic or extremely rare elements. The standard enthalpies of formation at 298 K of some binary antimony and transition metal (TM) compounds have been measured by high temperature direct synthesis calorimetry. The reported results are: ScSb(?112.0 ± 3.1); Sc5Sb3(-95.4 ± 2.8) TiSb (?63.3 ± 2.4); CrSb (?3.0 ± 2.7); FeSb2(0 ± 2.5); Mn2Sb (?9.2 ± 1.5); CoSb (?19.6 ± 1.3); CoSb3(-20.1 ± 2.0); NiSb (?35.3 ± 1.8). In kJ/mole of atoms. We compare our experimental measurement results with some previously published measurements and with predicted values by ab initio calculations.
NiSb alloy hollow nanospheres as anode materials for rechargeable lithium ion batteries
Hou, Hongshuai,Cao, Xiaoyu,Yang, Yingchang,Fang, Laibing,Pan, Chengchi,Yang, Xuming,Song, Weixin,Ji, Xiaobo
supporting information, p. 8201 - 8203 (2014/07/21)
NiSb alloy hollow nanospheres (HNSs) obtained by galvanic replacement were firstly applied as anode materials for lithium ion batteries, giving the best electrochemical performances for NiSb alloy materials so far with a high reversible capacity of 420 mA h g-1 after 50 cycles, close to its theoretical capacity (446 mA h g-1). This journal is the Partner Organisations 2014.
