국립부경대학교 화학과

최근 신재생 에너지(또는 그린 에너지)는 미래 전력원으로서 연구가 활발히 되고 있다.
신재생 에너지는 자연계에서 지속적으로 일어나는 현상을 물리 또는 화학적 변화의 경로를 통해 전기에너지로 변화시킴으로써 얻어진다.
여기서 전기화학은 전기와 화학 현상을 연결해주는 학문으로, 신재생 에너지 개발에 중요한 역할을 하며, 많은 에너지 연구가 전기화학을 기반으로 이루어지고 있다.
그리고 최근 다양한 관점에서 더 복잡한 형태로 연구하고 있어, 새로운 전기화학적 측정 방법이 연구되고 있다.

우리 실험실에서는 신재생 에너지의 전기화학을 연구하기 위해 전기화학 임피던스 분광법(electrochemical impedance spectroscopy)을 이용한다.
임피던스 측정법은 특정 주파수를 가지는 전기 신호에 따라 다르게 나타나는 전기화학 현상을 관찰할 수 있는 방법이며, 최근 푸리에 변환을 이용한 방법의 경우 빠른 시간에 다양한 관점에서 실시간으로 측정이 가능하여 전기화학을 연구하는데 풍부한 정보를 제공하고 있다.
푸리에 변환 임피던스법을 이용하여 다양한 관점에서 신재생 에너지의 전기화학 현상을 연구하고자 한다.
특히, 태양광을 이용한 태양전지에서는 태양광의 파장에 따라 다른 전기화학 현상을 보여주므로, 실시간 관측이 가능한 임피던스법을 광학분광법과 동기화(synchronize)시킴으로써 동시다발적 현상을 짧은 시간에 관찰이 가능할 것으로 기대한다. 

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특허-4. 표준 색상표 없이 색상 자가 진단이 가능한 스마트기기 및 이를 이용한 진단 방법 (10-1541977)

특허-3. 푸리에 변환 전기화학 임피던스의 실시간 모니터링장치 및 개발 (10-1541977)

특허-2. 전류 신호를 이용한 푸리에 변환 전기화학 임피던스 측정장치 및 방법 (10-1396625)

특허-1. 푸리에 변환 전기화학 임피던스의 실시간 모니터링장치 및 개발 (10-2013-005337)  

51. Byoung-Yong Chang, “A novel analysis method for electrochemical impedance spectra using deep learning”, Electrochim. Acta, 2023, 462, 142741.

50. Long Duong Ha, Ki Jun Kim, Seong Jung Kwon, Byoung-Yong Chang, Seongpil Hwang, “Time-Resolved Electrochemical Impedance Spectroscopy of Stochastic Nanoparticle Collision: Short Time Fourier Transform versus Continuous Wavelet Transform”, Small, 2023, 2302158.

49. Byoung-Yong Chang, “The Effective Capacitance of a Constant Phase Element with Resistors in Series”, J. Electrochem. Sci. Technol., 2022, 13(4), 479.

48. Merreta Noorenza Biutty, Ja-Min Koo, Joo Hyun Kim, Seonho Kim, U. Hyeok Choi, Kusuma Betha Cahaya Imani, Jinhwan Yoon, Byoung-Yong Chang and Seong Il Yoo, “Ion transport through layered hydrogels for lowfrequency energy harvesting toward self-powered chemical systems”, J. Mater. Chem. A, 2022, 10, 11881.

47. 주문갑, 박상홍, 장병용, 류지열, “고해상도 3차원 스캐너를 위한 패턴 생성 시스템 개발”, 제어로봇시스템학회, 2021, 27(1), 69. 

46. Byoung-Yong Chang, “Conversion of a Constant Phase Element to an Equivalent Capacitor”, J. Electrochem. Sci. Technol., 2020, 11(3), 318.

45. Seok Hee Han, Jihun Rho, Sunmi Lee, Moonjoo Kim, Sung Il Kim, Sangmee Park, Woohyuk Jang, Chang Heon Lee, Byoung-Yong Chang, Taek Dong Chung, “In Situ Real-Time Monitoring of ITO Film under a Chemical Etching Process Using Fourier Transform Electrochemical Impedance Spectroscopy”, Anal. Chem., 2020, 92, 10504.

44. Joanna Wang, Michael J. Sailor, Byoung-Yong Chang, “Fabrication of a Lateral Gradient Rugate in Porous Silicon for a Miniature Spectrometer Application”, ChemElectroChem, 2019, 6, 5967.

43. Kyungsoon Park, Byoung-Yong Chang, Seongpil Hwang, “Correlation between Tafel Analysis and Electrochemical Impedance Spectroscopy by Prediction of Amperometric Response from EIS”, ACS Omega, 2019, 4, 19307.

42. Long Duong Ha, Kyungsoon Park, Byoung-Yong Chang, Seongpil Hwang, “Implementation of Second-Generation Fourier Transform Electrochemical Impedance Spectroscopy with Commercial Potentiostat and Application to Time-Resolved Electrochemical Impedance Spectroscopy”, Anal. Chem., 2019, 91, 14208.

41. Byoung-Yong Chang, “Singular Point of Voltammetric Impedance Data and its Application in Analyzing Voltammetry Data”, J. Electrochem. Sci. Technol., 2018, 9(2), 149.

40. Byoung-Yong Chang, “Analysis of the Singular Point of Cyclic Voltammograms Recorded with Various Scan Rates”, J. Electrochem. Sci. Technol., 2017, 8(3), 244.

39. Byoung-Yong Chang, “A New Accurate Equation for Estimating the Baseline for the Reversal Peak of a Cyclic Voltammogram”, J. Electrochem. Sci. Technol., 2016, 7(4), 293.

38. Byoung-Yong Chang, “Effects of the Polarization Resistance on Cyclic Voltammograms for an Electrochemical-Chemical Reaction”, J. Electrochem. Sci. Technol., 2015, 6(4), 146.

37. Seong Ho Jo, Hyun Woo Kim, Minkyung Song, Nam Jin Je, Sung-hoon Oh, Byoung-Yong Chang, Jinhwan Yoon,∥ Joo Hyun Kim, Bonghoon Chung, and Seong Il Yoo,, “Core？Corona Functionalization of Diblock Copolymer Micelles by Heterogeneous Metal Nanoparticles for Dual Modality in Chemical Reactions”, ACS Appl. Mater. Interfaces, 2015, 7, 18778.

36. Byoung-Yong Chang, “Consideration on the Non-linearity of Warburg Impedance for Fourier Transform Electrochemical Impedance Spectroscopy”, J. Korean Electrochem. Soc., 2014, 17(2), 119.

35. Kwang-Mo Nam and Byoung-Yong Chang, “Electrochemical Impedance Method to Measure the Potential of the Outer Helmholtz Plane”, J. Electrochem. Soc., 2014, 161(6), H379.

34. Jong Il Hong, Byoung-Yong Chang, “Development of the Smartphone-based Colorimetry for Multi-analyte Sensing Arrays”, Lab Chip, 2014, 14, 1725.

33. Namchul Jung, Darae Kim, Changyong Yim, Jin-Young Park, Byoung-Yong Chang, Sangmin Jeon, “Quartz resonator for simultaneous measurement of changes in mass and EI during protein adsorption”, J. Electrochem. Soc., 2014, 161(2), B3107.

32. Hyunwoo Lee, Byoung-Yong Chang, Won-Sub Kwack, Kyungmin Jo, Jinkyo Jeong, Se-Hun Kwon, Haesik Yang, “Dependence of the capacitance between an electrode and an electrolyte solution on the thickness of aluminum oxide layers deposited using atomic layer deposition”, J. Electroanal. Chem., 2013, 700, 8.

31. Kwang-Mo Nam, Dong-Hyup Shin, Namchul Jung, Moon G. Joo, Sangmin Jeon, Su-Moon Park, Byoung-Yong Chang, “Development of Galvanostatic Fourier Transform Electrochemical Impedance Spectroscopy”, Anal. Chem., 2013, 85. 2246.

30. Byoung-Yong Chang, “A New Algorithm Design for the Real-time Electrochemical Impedance Monitoring System”, J. Electrochem. Sci. Tech., 2012, 3(4), 154.

29. Byoung-Yong Chang, Su-Moon Park, "Potential-Resolved Snapshot Impedance Spectroscopy for Exploring the Mechanism of a Complex Reaction Undergoing Parallel Patheways", J. Phys. Chem. C 2012, 116, 18270.

28. Byoung-Yong Chang, Kwok-Fan Chow, John A. Crooks, Francois Mavre, Richard M. Crooks, “Two-channel microelectrochemical bipolar electrode sensor array”, Analyst 2012, 137, 2827.

27. Byoung-Yong Chang, “Smartphone-based Chemistry Instrumentation:Digitization of Colorimetric Measurements”, Bull. Korean Chem. Soc. 2012, 33(2), 549.

26. Byoung-Yong Chang, Hyo Joong Lee, Su-Moon Park, “Mass-Transfer Admittance Voltammetry from Electrochemical Impedance Spectroscopy and Its Applications”, Electroanal. 2011, 23, 2070.

25. Francois Mavre, Robbyn K. Perdue, Derek Laws, Kwok-Fan Chow, Byoung-Yong Chang, John A. Crooks, Richard M. Crooks, “Floating bipolar electrodes: a simple means for concentration, separation and detection of analytes in microfluidic channels”, Anal. Chem. 2010, 82, 8766.

24. Byoung-Yong Chang, John A. Crooks, Kwok-Fan Chow, Francois Mavre, Richard M. Crooks "Design and Operation of Microelectrochemical Gates and Integrated Circuits", J. Am. Chem. Soc. 2010, 132, 15404.

23. Jin-Young Park, Yoon-suk Lee, Byoung-Yong Chang, Byeang Hyean Kim, Sangmin Jeon, and Su-Moon Park, "Label-Free Impedimetric Sensor for a Ribonucleic Acid Oligomer Specific to Hepatitis C Virus at a Self-Assembled Monolayer-Covered Electrode", Anal. Chem., 2010, 82, 8342.

22. Kwok-Fan Chow, Byoung-Yong Chang, Brian A. Zaccheo, Francois Mavre, and Richard M. Crooks, “A Sensing Platform Based on Electrodissolution of a Ag Bipolar Electrode”, J. Am. Chem. Soc. 2010, 132, 9228.

21. Steven Forsdick. John A. Crooks, Byoung-Yong Chang, Richard M. Crooks, “Two-Dimensional Bipolar Electrode System”, J. Am. Chem. Soc. 2010, 132, 9226.

20. Byoung-Yong Chang, Francois Mavre, Kwok-Fan Chow, John A. Crooks, Richard M. Crooks, “Snapshot Voltammetry Using a Triangular Bipolar Microelectrode”, Anal. Chem., 2010, 82, 5317.

19. V. Dharumana, Byoung-Yong Chang, Su-Moon Park , Jong Hoon. Hahn, “Ternary mixed monolayers for simultaneous DNA orientation control and surface passivation for label free DNA hybridization electrochemical sensing” Biosens. Bioelectron , 2010, 25, 2129.

18. Byoung-Yong Chang, Su-Moon Park, “Electrochemical Impedance Spectroscopy”, Annu. Rev. Anal. Chem., 2010, 3, 207

17. Jiwon Bang, Juwon Park, Ji Hwang Lee, Nayoun Won, Jutaek Nam, Jongwoo Lim, Byoung-Yong Chang, Hyo Joong Lee, Bonghwan Chon, Junghan Shin, Jaebyung Park, Jong Hwa Choi, Kilwon Cho, Su-Moon Park, Taiha Joo, and Sungjee Kim, “ZnTe/ZnSe (Core/Shell) Type-II Quantum Dots: Their Optical and Photovoltaic Properties”, Chem. Mater., 2010, 22, 233.

16. Francois Mavre, Kwok-Fan Chow, Eoin Sheridan, Byoung-Yong Chang, John A. Crooks, Richard M. Crooks1, “A Theoretical and Experimental Framework for Understanding ECL Emission at Bipolar Electrodes”, Anal. Chem., 2009, 81, 6218.

15. Kwok-Fan Chow, Francois Mavre, John A. Crooks, Byoung-Yong Chang, Richard M. Crooks, “A Large Scale, Wireless Electrochemical Bipolar Electrode Microarray”, J. Amer. Chem. Soc., 2009, 131, 8364.

14. Jin-Young Park, Yoon-Suk Lee, Byoung-Yong Chang, S. Karthikeyan, Kwang S. Kim, Byeang Hyean Kim, Su-Moon Park, “(R)-Lipo-Diaza-18-Crown-6 Self-Assembled Monolayer (SAM) as a Selective Serotonin Receptor ”, Anal. Chem., 2009, 81, 8343.

13. Hidekazu Miyaji, Dae Sik Kim, Byoung-Yong Chang, Su-Moon Park, Kyo Han Ahn, “Electrochemical and 19F NMR Detection of Anions, Ion-pairs, and a Zwitterionic Amino Acid with a Ferrocene-based Hetero-ditopic Receptor Bearing o-(Carboxamido) trifluoroacetophenone and Crown-ether Ligands”, Bull. Korean Chem. Soc. 2008, 29(12), 2355.

12. Byoung-Yong Chang, Eunshil Ahn, Su-Moon Park, “Effects of Halide Ions on Underpotential Deposition of Lead on Polycrystalline Gold Electrodes Studied by Real Time Impedance Measurements”, J. Phys. Chem. C, 2008, 112, 16902.

11. Jin-Young Park, Byoung-Yong Chang, Hak hyun Nam, Su-Moon Park, “Selective Electrochemical Sensing of Glycated Hemoglobin(HbA1c) on Thiophene-3-Boronic Acid Self-Assembled Monolayer Covered Gold Electrodes”, Anal. Chem. 2008, 80, 8035.

10. Dowook Ryu, Eunju Park, Dae-Sik Kim, Shihai Yan, Jin Yong Lee, Byoung-Yong Chang, and Kyo Han Ahn, “A Rational Approach to Fluorescence "Turn-On" Sensing of -Amino-carboxylates”, J. Amer. Chem. Soc., 2008, 130, 2394.

9. Hidekazu Miyaji, Dae-Sik Kim, Byoung-Yong Chang, Eun Joo Park, Su-Moon Park, Kyo Han Ahn, “Highly cooperative ion-pair recognition of potassium cyanide using a hetero-ditopic ferrocene-based crown ether-trifluoroacetylcarboxanilide receptor”, Chem. Comm. 2008, 753.

8. Jin-Bum Park, Byoung-Yong Chang, Jung-Suk Yoo, Sung-Young Hong, Su-Moon Park, “Resolution of a Multi-Step Electron Transfer Reaction by Time Resolved Impedance Measurements: Sulfur Reduction in Nonaqueous Media”, Bull. Korean Chem. Soc., 2007. 28(9), 1523.

7. Byoung-Yong Chang, Su-Moon Park, “Fourier Transform Analysis of Chronoamperometric Currents Obtained during Staircase Voltammetric Experiments”, Anal. Chem., 2007, 79, 4892.

6. Byoung-Yong Chang, Sung-Young Hong, Jung-Suk Yoo, Su-Moon Park, “Determination of Electron Transfer Kinetic Parameters by Fourier Transform Electrochemical Impedance Spectroscopic Analysis”, J. Phys. Chem. B, 2006, 110, 19386.

5. Dae-Sik Kim, Hidekazu Miyaji, Byoung-Yong Chang, Su-Moon Park, Kyo Han Ahn, “Selective recognition and electrochemical sensing of dicarboxylates with a ferrocene-based bis(o-trifluoroacetylcarboxanilide) receptor”, Chem. Comm., 2006, 3314.

4. Su-Moon Park, Jung-Suk Yoo, Byoung-Young Chang, Eun-Shil Ahn, “Novel instrumentation in electrochemical impedance spectroscopy and a full description of an electrochemical system”, Pure and Appl. Chem., 2006, 78(5), 1069.

3. Byoung-Yong Chang, Su-Moon Park, “Integrated Description of Electrode/Electrolyte Interfaces Based on Equivalent Circuits and Its Verification Using Impedance Measurements”, Anal. Chem., 2006, 78, 1052.

2. Byoung-Yong Chang, Su-Moon Park, “Relative Contributions of Ni2+ and Zn2+ Reduction Currents to Anomalous Electrodeposition of Zn-Ni Alloys”, J. Elctrochem. Soc., 2004, 151(12), C786.

1. Joo-Yul Lee, Jae-Woo Kim, Byoung-Yong Chang, Hyun Tae Kim, Su-Moon Park, “Effects of Ethoxylated a-Naphtholsulfonic Acid on Tin Electroplating at Iron Electrodes”, J. Elctrochem. Soc., 2004, 151(5), C333. 

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