近日,我校化學(xué)與化工學(xué)院高性能功能材料與器件創(chuàng)新團(tuán)隊劉淑玲教授及王超副教授圍繞電化學(xué)儲能材料及電催化材料設(shè)計領(lǐng)域取得多項重要進(jìn)展,連續(xù)在Chemical Engineering Journal(IF = 16.744),Journal of Power Sources(IF = 9.794), Applied Surface Science(IF = 7.392), Electrochimica Acta (IF = 7.336)等國際知名期刊發(fā)表12篇研究論文。
這些研究工作主要涉及鋰離子電池/水系超級電容器高性能電極材料及水電解制氫新型催化劑的設(shè)計與開發(fā)。針對鋰電電極/水系超級電容器電極材料面臨的容量低、穩(wěn)定性差的問題,團(tuán)隊主要通過界面調(diào)控及優(yōu)化、異質(zhì)結(jié)構(gòu)設(shè)計等策略構(gòu)建高性能電極材料,提升了材料導(dǎo)電性,增加了儲離子位點,并抑制充放電過程中的不可逆相變,有效提升了材料儲能容量及循環(huán)穩(wěn)定性(Dual-layer carbon protected coaxial cable-like Si-based composites as high-performance anodes for lithium-ion batteries; A facile synthesis of Ni0.85Se@Cu2?xSe nanorods as high-performance supercapacitor electrode materials)。針對水電解制氫過程中,析氧反應(yīng)動力學(xué)緩慢,需要極高過電勢的問題,團(tuán)隊采用無定型/結(jié)晶態(tài)異相結(jié)構(gòu)設(shè)計、摻雜等策略,增加電化學(xué)活性位點數(shù)量,優(yōu)化析氧中間體吸附能,加速析氧反應(yīng)動力學(xué)過程(Solvothermal preparation of nickel-iron phosphides hollow nanospheres derived from metal-organic frameworks for water oxidation reaction; Electrodeposited amorphous cobalt-nickel-phosphide-derived films as catalysts for electrochemical overall water splitting)。這些研究成果極大地擴(kuò)展了高性能儲能材料/電催化劑的開發(fā),推動了相關(guān)產(chǎn)業(yè)的發(fā)展。
NC@Si@CNTs作為鋰離子電池負(fù)極材料性能圖(左)及Ni0.85Se@Cu2?xSe作為超級電容器電極材料的Ragon圖(右)
水熱合成(Ni1-xFex)2P(左)及電沉積制備的Co-Ni-P(右)用于堿性電催化析氧性能示意圖
這些論文均以陜西科技大學(xué)為第一完成單位,團(tuán)隊劉淑玲教授或王超副教授為第一作者或通訊作者,化工學(xué)院研究生周子翔、柴樂、王睿等為共同作者。
團(tuán)隊發(fā)表系列論文如下:
1.Chemical Engineering Journal2022, 433: 134483.https://doi.org/10.1016/j.cej.2021.134483
2.Sustainable Energy & Fuels2022,6:3169-3178.https://doi.org/10.1039/D2SE00385F.
3.Journal of Alloys and Compounds2022, 896: 163069.https://doi.org/10.1016/j.jallcom.2021.163069
4.Journal of Alloys and Compounds2022, 918: 165523.https://doi.org/10.1016/j.jallcom.2022.165523
5.Chemical Engineering Journal2021, 420: 129686.https://doi.org/10.1016/j.cej.2021.129686
6.Journal of Power Sources2021, 506: 230109.https://doi.org/10.1016/j.jpowsour.2021.230109
7.Applied Surface Science2021, 540: 148336.https://doi.org/10.1016/j.apsusc.2020.148336
8.Applied Surface Science2021, 556: 149764.https://doi.org/10.1016/j.apsusc.2021.149764
9.Electrochimica Acta2021, 389: 138683.https://doi.org/10.1016/j.electacta.2021.138683
10.The Journal of Physical Chemistry C2021, 125: 21443-21452.https://doi.org/10.1021/acs.jpcc.1c05899
11.Journal of Solid State Electrochemistry2021, 25: 1975-1985.
https://link.springer.com/article/10.1007/s10008-021-04968-0
12.Dalton Transactions2021, 50: 13543-13553.https://doi.org/10.1039/D1DT02199K
(核稿:仝建波 編輯:劉倩)