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Abnormal Effects of Cations (Li+, Na+, and K+) on Photoelectrochemical and Electrocatalytic Water Splitting
Ding, Chunmei; Zhou, Xin; Shi, Jingying; Yan, Pengli; Wang, Zhiliang; Liu, Guiji; Li, Can
刊名JOURNAL OF PHYSICAL CHEMISTRY B
2015-02-26
DOI10.1021/acs.jpcb.5b00713
119期:8页:3560-3566
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]SENSITIZED SOLAR-CELLS ; HYDROGEN-PRODUCTION ; VISIBLE-LIGHT ; OXIDATION CATALYSTS ; BISMUTH VANADATE ; PHOTOANODES ; ELECTRODES ; INTERFACES ; REDUCTION ; EVOLUTION
英文摘要The electrodeelectrolyte interface chemistry is highly important for photoelectrochemical (PEC) and electrocatalytic water splitting where cations in the electrolyte are often crucial. However, the roles of cations in an electrolyte are much debated and not well-understood. This work reports that the PEC and electrocatalytic water oxidation (WO) activities in basic electrolytes with different cations follow an unexpected trend (Li+ > K+ > Na+) especially for long-term reaction. Such an abnormal order of activity is found to be the balance effect of two factors: the distinct extents of the weakening of O-H bond on electrode surface after interacting with cations in different electrolytes and the different rates of oxygen reduction reaction (ORR) which turns out to be dominant. Li+ not only brings the most significant decrease of OH bond strength but also is most effective for avoiding back reaction, while Na+ shows the most detrimental effect on WO because of ORR. Our results provide important insight into the roles of cations in WO and demonstrate a new strategy of tailoring the electrode-electrolyte interface via judicious choice of cations in electrolyte for more efficient PEC and electrocatalytic water splitting.
语种英语
WOS记录号WOS:000350329000023
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/146038
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
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Ding, Chunmei,Zhou, Xin,Shi, Jingying,et al. Abnormal Effects of Cations (Li+, Na+, and K+) on Photoelectrochemical and Electrocatalytic Water Splitting[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2015,119(8):3560-3566.
APA Ding, Chunmei.,Zhou, Xin.,Shi, Jingying.,Yan, Pengli.,Wang, Zhiliang.,...&Li, Can.(2015).Abnormal Effects of Cations (Li+, Na+, and K+) on Photoelectrochemical and Electrocatalytic Water Splitting.JOURNAL OF PHYSICAL CHEMISTRY B,119(8),3560-3566.
MLA Ding, Chunmei,et al."Abnormal Effects of Cations (Li+, Na+, and K+) on Photoelectrochemical and Electrocatalytic Water Splitting".JOURNAL OF PHYSICAL CHEMISTRY B 119.8(2015):3560-3566.
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