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Wei, PC, Chattopadhyay S, Lu CY, Hsiao CL, Shih HC, Chen LC, Chen KH.  2010.  Room-temperature negative photoconductivity in degenerate InN thin films with a supergap excitation. Phys. Rev.. B 81:045306.
Hsu, YK, Chen YC, Lin YG, Chen LC, Chen KH.  2011.  Reversible phase transformation of MnO2nanosheets in electrochemical capacitor investigated by in-situ Raman spectroscopy. Chem. Comm.. 47:1252-1254.
Chang, HJ, Chen CH, Chen* YF, Lin TY, Chen LC, Chen KH, Lan ZH.  2005.  Responseto “Comment on ‘Direct evidence of nanocluster-induced luminescence in InGaNepifilms. Appl. Phys. Lett.. 87:136102-(1-2).
Hwang, JS, Lee CH, Yang FH, Chen KH, Hwa LG, Yang* YJ, Chen LC.  2001.  Resistive heated MOCVD deposition of InN films. Materials Chem. and Phys.. 72:290-295.
Sakthivel, A, Huang SJ, Chen WH, Lan ZH, Chen KH, Lin HP, Mou CY, Liu* SB.  2004.  Replication of mesoporous aluminosilicate molecular sieves (RMMs) with zeolite framework from mesoporous carbons. Chem. of Mater.. 16:3168-3175.
Thang, NQ, Sabbah A, Putikam R, Huang C-Y, Lin T-Y, Kamal Hussien M, Wu H-L, Lin M-C, Lee C-H, Chen K-H, Chen L-C.  2025.  Regulating COOH Intermediate via Rationally Constructed Surface-Active Sites of Bi2WO6 for Solar-Driven CO2-to-CO Production, 2025. Advanced Functional Materials. n/a(n/a):2423751.: John Wiley & Sons, Ltd AbstractWebsite

Abstract Solar-driven CO2 reduction holds great promise for sustainable energy, yet the role of atomic active sites in governing intermediate formation and conversion remains poorly understood. Herein, a synergistic strategy using Ni single atoms (SAs) and surface oxygen vacancies (Ov) is reported to regulate the CO2 reduction pathway on the Bi2WO6 photocatalyst. Combining in-situ techniques and theoretical modeling, the reaction mechanism and the structure-activity relationship is elucidated. In-situ X-ray absorption spectroscopy identifies Bi and Ni as active sites, and in-situ diffuse reflectance infrared Fourier transform spectroscopy demonstrates that adsorption of H2O and CO2 readily forms CO32? species on the Ov-rich catalyst. Optimally balancing Ni SAs and Ov lowers the energy barrier for the formation and dehydration of a key COOH intermediate, leading to favorable CO formation and desorption. Consequently, a superior CO production efficiency of 53.49 µmol g?1 is achieved, surpassing previous reports on Bi2WO6-based catalysts for gas-phase CO2 photoreduction.

Shi, SC, Chen CF, Hsu GM, Hwang JS, Chattopadhyay S, Lan ZH, Chen KH, Chen* LC.  2005.  Reduced temperature-quenching of photoluminescence from indium nitride nanotips grown by metalorganic chemical vapor deposition. Appl. Phys. Lett.. 87:203103-(1-3).
Dhara*, S, Das CR, Hsu HC, Chen KH, Chen LC, Raj B, Bhaduri AK, Albert SK, Ray A.  2008.  Recrystallization of epitaxial GaN under indentation. Appl. Phys. Lett.. 92:143114.
Chen, KH, Wang J, Mazur E.  1986.  Raman Spectroscopy of Infrared Multiphoton Excited Molecules. Int. Quantum Electronics Conf.. , San Francisco
Wang, J, Chen KH, Mazur E.  1988.  Raman Spectroscopy of Infrared Multiphoton Excited Molecules. Laser Chem.. 8:97.
Twu, J, Yu YY, Tang CW, Wang GJ, Chen KH.  1999.  Raman Spectroscopic Studies of the Thermal Decomposition of Molybdenum Oxide/2,2'-Bipyridine Compounds. Applied Spectroscopy. 9:1083.
Wu, JT, Shih CF, Guo TH, Chen KH.  1997.  Raman Spectroscopic Studies of the Thermal Decomposition Mechanism of Ammonium Metavanadate. J. Mater. Chem. 7:2273.
Wu, JT, Chuang CJ, Chang KI, Yang CH, Chen KH.  1997.  Raman Spectroscopic Studies of Sulfation of Cerium Oxide. Appl. Catalysis B : Environmental. 12:309-324.
Chung, YL, Peng X, Liao YC, Yao S, Chen L-C, Chen K-H, Feng ZC.  2011.  Raman scattering and Rutherford backscattering studies on InN films grown byplasma-assisted molecular beam epitaxy. Thin Solid Films. 519:6778.