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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
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY B
2015-02-26
DOI10.1021/acs.jpcb.5b00713
Volume119Issue:8Pages:3560-3566
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Physical
WOS Research AreaChemistry
WOS KeywordSENSITIZED SOLAR-CELLS ; HYDROGEN-PRODUCTION ; VISIBLE-LIGHT ; OXIDATION CATALYSTS ; BISMUTH VANADATE ; PHOTOANODES ; ELECTRODES ; INTERFACES ; REDUCTION ; EVOLUTION
AbstractThe 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.
Language英语
WOS IDWOS:000350329000023
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/146038
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
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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