利用强度调制光电流/光电压谱研究碳点/KOH电解液界面的动力学行为

doi:10.3866/PKU.WHXB201706092

Abstract

Abstract:

The dynamic behaviors at the interface of carbon dots and KOH electrolyte were studied using intensity-modulated photocurrent spectroscopy (IMPS) and intensity-modulated photovoltage spectroscopy (IMVS) in the photoelectrochemical hydrogen production from water splitting. The results show that the kinetic parameters like electron transport time (τ_d), electron diffusion coefficient (D_n), electron lifetime (τ_n), and electron diffusion length (L_n) remain unchanged in the light intensity range of 30-90 mW·cm^-2. When the light intensity increases to 110 and 130 mW·cm^-2, τ_d and τ_n increase, while D_n decreases. It is indicated that the photogenerated electrons are mainly transported in the trap-free limited diffusion mode at the electrode/electrolyte interface due to the presence of few defects in carbon dots, which is different from the mode of transport at the semiconductor TiO₂/electrolyte interface. Moreover, the photocarrier collection efficiencies (η_cc) associated with the electron transport time and the electron lifetime are similar for light intensity of 30-130 mW·cm^-2.

Key words: Carbon dots, Photoelectrochemical hydrogen production, Interface dynamic, IMPS, IMVS

MSC2000:

O649

Li-Xia SANG,Jia LIN,Hao GE,Lei LEI. Dynamic Analysis of Carbon Dots/KOH Electrolyte Interface by IMPS/IMVS[J].Acta Phys. -Chim. Sin., 2017, 33(12): 2454-2462.

References

1	Tachibana Y. ; Vayssieres L. ; Durrant J. R. Nat. Photon. 2012, 6, 511.
2	Youngblood W. J. ; Lee S. H. A. ; Maeda K. ; Mallouk T. E. Acc. Chem. Res. 2009, 42, 1966.
3	Shen C. ; Chua C. S. ; Lim Y. F. ; Wang Q. ChemElectroChem 2016, 24, 1471.
4	Xu X. ; Ray R. ; Gu Y. ; Ploehn H.J. ; Gearheart L. ; Raker K. ; Scrivens W. J. Am. Chem. Soc. 2004, 126, 12736.
5	Zhang Z. Y. ; Sang L. X. ; Sun B. ; Zhang X. M. ; Ma C. F. Acta Phys. -Chim. Sin. 2010, 26, 2935.
5	张知宇; 桑丽霞; 孙彪; 张晓敏; 马重芳. 物理化学学报, 2010, 26, 2935.
6	Yu H. J. ; Zhao Y. F. ; Zhou C. ; Shang L. ; Peng Y. ; Cao Y. H. ; Wu L. Z. ; Tung C. H. ; Zhang T. R. J. Mater. Chem. A 2014, 2, 3344.
7	Leng W. H. ; Barnes P. R. ; Juozapavicius M. ; Regan B. C. ; Durrant J. R. J. Phys. Chem. Lett. 2010, 1, 967.
8	Sang L. X. ; Zhang Y. D. ; Wang J. ; Zhao Y. X. ; Chen Y. T. Phys. Chem. Chem. Phys. 2016, 18, 15427.
9	Bian J. C. ; Hang C. ; Wang L. Y. ; Hung T. F. ; Daoud W. A. ; Zhang R. Q. ACS Appl. Mater. Interfaces 2014, 6, 4883.
10	Wang F. ; Zhang Y. L. ; Liu Y. ; Wang X. F. ; Shen M. R. ; Lee S. T. ; Kang Z. H. J. Mater. Chem. A 2013, 5, 1831.
11	Yang P. J. ; Zhao J. H. ; Wang J. ; Cui H. J. ; Li L. ; Zhu Z. P. RSC Adv. 2015, 5, 21332.
12	Cao L. ; Sahu S. ; Anilkumar P. ; Bunker C. E. ; Xu J. ; Fernando K. A. S. ; Wang P. ; Guliants E. A. ; Tackett K. N. ; Sun Y. P. J. Am. Chem. Soc. 2011, 133, 4754.
13	Dino K. ; David S. E. ; Hen D. ; Avner R. Phys. Chem. Chem. Phys. 2016, 18, 23438.
14	Yin F. ; Lin Y. ; Lin R. F. ; Xiao X. R. Acta Phys. -Chim. Sin. 2002, 18, 21.
14	尹峰; 林原; 林瑞峰; 肖绪瑞. 物理化学学报, 2002, 18, 21.
15	Zhang C. N. ; Huang Y. ; Chen S. H. ; Tian H. J. ; Mo L. ; Hu L. H. ; Huo Z. P. ; Kong F. T. ; Ma Y. W. ; Dai S.Y. J. Phys. Chem. C 2012, 116, 19807.
16	Bertoluzzi L. ; Lopezvaro P. ; Tejada J. A. J. ; Bisquert J. J. Mater. Chem. A 2016, 4, 2873.
17	Yu X. ; Liu R. ; Zhang G. ; Cao H. Nanotechnology 2013, 24, 335401.
18	Sun, Y J. Preparation and Photoelectrochemical Properties of Modified TiO2 Thin Films. Master Dissertation, Fudan University, Shanghai, 2012.
18	孙钰珺.改性TiO2薄膜的制备及其光电化学性能研究[D].上海:复旦大学, 2012.
19	Bao L. ; Zhang Z. L. ; Tian Z.Q. ; Peng D. W. Adv. Mater. 2011, 23, 5801.
20	Hu S. ; Tian R. ; Wu L. ; Zhao Q. ; Yang J. ; Liu J. Cao S. Chem. Asian. J. 2013, 8, 1035.
21	Zhu S. J. ; Song Y. B. ; Zhao X. H. ; Bai Y. Nano Res. 2015, 8, 355.
22	Bisquert J. ; Belmonte G. G. ; Santiago F. F. J. Solid State Electrochem. 1999, 3, 337.
23	Zhang J. B. ; Lin Y. ; Lin R. F. Sinence in China (Series B). 2000, 20, 263.
23	张敬波; 林原; 林瑞峰. 中国科学化学, 2000, 20, 263.
24	Vanmaekelbergh D. ; Jongh P. E. D. Phys. Rev. B 2000, 61, 4699.
25	Hsiao P. T. ; Tung Y. L. ; Teng H. J. Phys. Chem. C 2010, 114, 6762.
26	Shangguan P. P. ; Tong S. P. ; Li H. L. ; Leng W. H. Acta Phys. -Chim. Sin. 2013, 29, 1954.
26	上官鹏鹏; 童少平; 李海丽; 冷文华. 物理化学学报, 2013, 29, 1954.
27	Peter L. M. ; Wijayantha K. G. U. ; Tahir A. A. Faraday Discuss. 2012, 155, 309.
28	Lewerenz H. J. ; Peter L. RSC Energy and Environment Series; Springer: New York 2013.
29	Jongh P. E. D. ; Vanmaekelbergh D. Phys. Rev. Lett. 1996, 77, 3427.
30	Miyashita M. ; Sunahara K. J. ; Nishikawa T. ; Uemura Y. ; Koumura N. ; Hara K. ; Mori A. ; Abe T. ; Suzuki E. ; Mori S. J. Am. Chem. Soc. 2008, 130, 17874.
31	Dloczik L. ; Lleperuma O. ; Lauermann I. ; Peter L. M. ; Ponomarev E. A. ; Redmond G. ; Shaw N. J. ; Uhlendorf I. J. Phys.Chem. B 1997, 101, 10281.
32	Franco G. ; Gehring J. ; Peter L. M. ; Ponomarev E. A. ; Uhlendorf I. J. Phys. Chem. B 1999, 103, 692.
33	Kem R. ; Sastrawan R. ; Ferber J. ; Luther R. S. Electrochim. Acta 2002, 47, 4213.
34	Peter L. M. ; Wijayantha K. G. U. Electrochim. Acta 2000, 45, 4543.
35	Guillen E. ; Peter L. M. ; Anta J. A. J. Phys. Chem. C 2016, 115, 22622.
36	Schlichth rl G. ; Huang S. Y. ; Sprague J. ; Frank A. J. J. Phys. Chem. B 1997, 101, 8141.
37	Zheng J. W. ; Mo L. E. ; Chen W.C. ; Jiang L. ; Ding Y. C. ; Ding Y. ; Li Z. Q. ; Hu L. H. ; Dai S. Y. Electrochim. Acta 2017, 232, 38.
38	Yu X. Y. ; Liao J. Y. ; Qiu K. Q. ; Kuang D. B. ; Su C. Y. ACS Nano 2011, 5, 9494.
39	Desario P. A. ; Pietron J. J. ; Taffa D. H. ; Compton R. ; Schuenemann S. ; Marschall R. ; Brintlinger T. H. ; Stroud R. M. ; Wark M. ; Owrutsky J. C. ; Rolison D. R. J. Phys. Chem. C 2015, 119, 17529.
40	Liang L. Y. ; Dai S. Y. ; Fang X. Q. ; Hu L. H. Acta Phys. Sin. 2008, 57, 1190.
40	梁林云; 戴松元; 方霞琴; 胡林华. 物理学报, 2008, 57, 1190.

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Dynamic Analysis of Carbon Dots/KOH Electrolyte Interface by IMPS/IMVS

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