Publication

:: Book Chapters ::

  1. Xu, R., "Synthesis of nanostructured cobalt spinel oxides and their applications in heterogeneous catalysis and sensing", in Metal oxide semiconductor nanostructures and their applications, ed., Umar, A. and Hahn, Y. B., Vol. 4, American Scientific Publishers, Stevenson Ranch, California, p. 135-182, 2010.
  2. Xu, R. and Sampanthar, J.T., "Development of nanoceramic oxides and their applications in heterogeneous catalysis", in Handbook of nanoceramics and their based nanodevices, ed., Tseng, T. Y. and Nalwa, H. S., Vol. 5, American Scientific Publishers, Los Angeles, California, p. 301-344, 2009.

:: Journal papers::

  1. Song, X. H., Wang, K., Xu, R.*, Low-Cost Carbon Nanospheres for Efficient Removal of Organic Dyes from Aqueous Solutions, submitted.
  2. Zhang, Q. Y., Cao, Y., Du, H. M., Wu, H., Beuerman, R., Duan, H. W., Chan-Park, M. B., Xu, R.*, High Refractive Index Inorganic-Organic Interpenetrating Polymer Network (IPN) Hydrogel Nanocomposite Toward Artificial Cornea Implants, in revision.
  3. Zhang, L., Zhou, L., Wu, H. B., Xu, R., Lou, X. W., Unusual Formation of Single-crystal MnS Microboxes Co-mediated by the Cubic Crystal Structure and Shape, Angew. Chem. Int. Ed., 2012, accepted.
  4. Hong, J. D., Xiao, X. Y., Wang, Y. S., Xu, R.*, Mesoporous Carbon Nitride with in Situ Sulfur Doping for Enhanced Photocatalytic Hydrogen Evolution from Water under Visible Light, J. Mater. Chem., 2012, accepted.
  5. Wang, Y. B., Wang, Y. S., Jiang, R. R., Xu, R.*, Cobalt Phosphate-ZnO Composite Based Photocatalysts for Solar Oxygen Production from Water, Ind. Eng. Chem. Res., 2012, accepted.
  6. Song, X., Xu, R., Wang, K., High capacity adsorption of malachite green in a mesoporous tyre-derived activated carbon, Asia-Pac. J. Chem. Eng., 2012, in press.
  7. Zhang, Q. Y., Goh, E. S. M., Beuerman, R., Judeh, Z., Chan-Park, M. B. and Xu, R.*, Development of optically transparent ZnS/poly(vinylpyrrolidone) nanocomposite films with high refractive indices and high Abbe numbers, submitted.
  8. Wang, B., Zhu, T., Wu, H. B., Xu, R., Chen, J. S., Lou, X. W., Porous Co3O4 nanowires derived from long Co(CO3)0.5(OH).0.11H2O nanowires with improved supercapacitive properties, Nanoscale, 4, 2145 - 2149, 2012.
  9. Chen, C. P., Gunawan, P., Lou, X. W., Xu, R.*, Silver Nanoparticles Deposited Layered Double Hydroxide Nanoporous Coatings with Excellent Antimicrobial Activities, Adv. Funct. Mater., 22, 780-787, 2012.
  10. Wang, Y. B., Wu, J. C., Zheng, J. W., Jiang, R. R. and Xu, R.*, Ni-doped ZnxCd1-xS photocatalysts from single-source precursors for efficient hydrogen evolution under visible light irradiation, Cat. Sci. Tech., 2, 581-588, 2012.
  11. Wang, B., Wu, H. B., Yu, L., Xu, R., Lim, T. T., Lou, X. W., Template-free Formation of Uniform Urchin-like ?-FeOOH Hollow Spheres with Superior Capability for Water Treatment, Adv. Mater., 24, 1111-1116, 2012.
  12. Xiao, F., Li, Y. Q., Zan, X. L., Liao, K., Xu, R., Chan-Park, M. B., Duan, H. W., Growth of Metal-like Oxide Nanostructures on Freestanding Graphene Paper for High-Performance Flexible Biosensors, Adv. Funct. Mater., 2012, in press.
  13. Xiao, F., Song, J. B., Gao, H. C., Zan, X. L., Xu, R., Duan, H. W., Coating Graphene Paper with 2D-Assembly of Electrocatalytic Nanoparticles: A Modular Approach toward High-Performance Flexible Electrodes, ACS Nano, 6, 100-110, 2012.
  14. Gunawan, P., Guan, C., Song, X. H., Zhang, Q. Y., Leong, S. S. J., Tang, C. Y., Chen, Y., Chan-Park, M. B., Chang, M. W., Wang, K. and Xu, R.*, Hollow Fiber Membrane Decorated with Ag/MWNTs: Towards Effective Water Disinfection and Biofouling Control, ACS Nano, 2011, 5, 10033-10040, 2011.
  15. Zhang, W., Hong, J. D., Zheng, J. W., Xu, R.*, Nickel-Thiolate Complex Catalyst Assembled in One Step in Water for Solar H2 Production, J. Am. Chem. Soc., 133, 20680-20683, 2011.
  16. Yin, J., Wu, T., Song, J. B., Zhang, Q., Liu, S. Y., Xu, R., Duan, H. W., SERS-Active Nanoparticles for Sensitive and Selective Detection of Cadmium Ion (Cd2+), Chem. Mater., 23, 4756-4764, 2011.
  17. Wu, J. C., Zheng, J. W., Wu, P. and Xu, R., Hybrid functionals study of band bowing, band edges and electronic structures of Cd1-xZnxS solid solution, J. Phys. Chem. C, 115, 19741-19748, 2011.
  18. Hong, J. D., Wang, Y. B., Pan, J. S., Zhong, Z. Y. and Xu, R.*, Self-Assembled Dye-Layered Double Hydroxide-Pt Nanoparticles: A Novel Hydrogen Evolution System with Remarkably Enhanced Stability, Nanoscale, 3, 4655-4661, 2011.
  19. Song, X. H., Gunawan, P., Leong, S. S. J., Jiang, R. R., Wang, K. and Xu, R.*, Surface Activated Carbon Nanospheres for Ultrafast Adsorption of Silver Ions from Aqueous Solutions, J. Hazard. Mater., 194, 162-168, 2011.
  20. Chen, J. S., Liu, J., Qiao, S. Z., Xu, R.* and Lou, X. W.*, PVP-mediated formation of large TiO2 nanosheets with exposed (001) facets, Chem. Commun., 47, 10443-10445, 2011.
  21. Wang, Y. B., Wu, J. C., Zheng, J. W., and Xu, R.*, Highly Active ZnxCd1-xS Photocatalysts Containing Earth Abundant Elements Only for Hydrogen Evolution from Water under Visible Light, Cat. Sci. Tech., 1, 940-947, 2011.
  22. Wang, L., Xu, R., Chen, Y., Jiang, R. R., Activity and stability comparison of immobilized NADH oxidase on multi-walled carbon nanotubes, carbon nanospheres, and single-walled carbon nanotubes, J. Mol. Cat. B: Enzym., 69, 120-126, 2011.
  23. Qi, X., Poernomo, G., Wang, K., Chen, Y., Chan-Park, M. B., Xu, R., Chang, M. W., Covalent immobilization of nisin on multi-walled carbon nanotubes: superior antimicrobial and anti-biofilm properties, Nanoscale, 3, 1874-1880, 2011.
  24. Wu, J. C., Zheng, J. W., Wu, P., and Xu, R., Study of Native Defects and Transition-Metal (Mn, Fe, Co, and Ni) Doping in a Zinc-Blende CdS Photocatalyst by DFT and Hybrid DFT Calculations, J. Phys. Chem. C, 115, 5675-5682, 2011.
  25. Chen, C. P., Gunawan, P., and Xu, R.*, Self-Assembled Fe3O4-Layered Double Hydroxide Colloidal Nanohybrids with Excellent Performance for Treatment of Organic Dyes in Water, J. Mater. Chem., 21, 1218-1225, 2011.
  26. Chen, J. S., Chen, C. P., Liu, J. A., Xu, R., Qiao, S. A., Lou, X. W., Ellipsoidal hollow nanostructures assembled from anatase TiO2 nanosheets as a magnetically separable photocatalyst, Chem. Commun., 47, 2631-2633, 2011.
  27. Qian, H. S.*, Hu, Y., Li, Z. Q., Yang, X. Y., Li, L. C., Zhang, X. T. and Xu, R.*, ZnO/ZnFe2O4 Magnetic Fluorescent Bifunctional Hollow Nanospheres: Synthesis, Characterization and its Optical/Magnetic Properties, J. Phys. Chem. C, 114, 17455-17459, 2010.
  28. Qi, X. B., Zhou, C. C., Li, P., Xu, W. X., Cao, Y., Ling, H., Chen, W. N., Li, C. M., Xu, R., Lamrani, M., Mu, Y. G., Leong, S. S. J., Chang, M. W. and Chan-Park, M. B., Novel short antibacterial and antifungal peptides with low cytotoxicity: Efficacy and action mechanisms, Biochem. Biophys. Res. Commun., 398, 594-600, 2010.
  29. Zhang, W., Wang, Y. B., Wang, Z., Zhong, Z. Y., Xu, R.*, Highly Efficient and Noble Metal-Free NiS/CdS Photocatalysts for Hydrogen Evolution from Lactic Acid Sacrificial Solution under Visible Light, Chem. Commun., 46, 7631-7633, 2010.
  30. Wang, Y. S., Moo, Y. X., Chen, C. P., Gunawan, P., Xu, R.*, Fast Precipitation of Uniform CaCO3 Nanospheres and Their Transformation to Hollow Hydroxyapatite, J. Colloid Interface Sci., 352, 393-400, 2010.
  31. Liu, S. B.. Ng, A. K., Xu, R., Wei, J., Tan, C. M., Yang, Y. H., Chen, Y., Antibacterial action of dispersed single-walled carbon nanotubes on Escherichia coli and Bacillus subtilis investigated by atomic force microscopy, Nanoscale, 2, 2744-2750, 2010.
  32. Zheng, J. W., Bhattcahrayya, A., Wu, P., Chen, Z., Highfield, J., Dong, Z. L., Xu, R., The origin of visible light absorption in chalcogen element (S, Se, and Te)-doped anatase TiO2 photocatalysts, J. Phys. Chem. C, 114, 8063-7069, 2010.
  33. Pei, X. W., Yan, Y. H., Wang, J. L., Yang, P. Xu, R., Chan-Park, M. B., A novel magnetically responsive material of single-walled carbon nanotubes, Carbon, 48, 2501-2505, 2010.
  34. Wang, Y. B., Wang, Y. S., Xu, R.*, Synthesis of Zn-Cu-Cd Sulfide Nanospheres with Controlled Copper Locations and Their Effects on Photocatalytic Activities for Hydrogen Production, Int. J. Hydrog. Energy, 35, 5245-5253, 2010.
  35. Zhang, W., Tay, H. L., Lim, S. S., Wang, Y. S., Zhong, Z. Y., Xu, R.*, Supported cobalt oxide on MgO: highly efficient catalysts for degradation of organic dyes in dilute solutions, Appl. Cat. B-Env., 95, 93-99, 2010.
  36. Zhou, W. X., Yan, Y. H., Xu, R., Chan-Park, M. B., Aggregation of silicone diacrylate varied molecular weight in the acrylate mixture on different substrates side surface, J. Polym. Sci. Part B: Polym. Phys., 48, 442-450, 2010.
  37. Xiao, W., Chen, J. S., Li, C. M., Xu, R., and Lou, X. W., Synthesis, Characterization and Lithium Storage Capability of AMoO4 (A = Ni, Co) Nanorods. Chem. Mater.,22, 746-754, 2010.
  38. Liu, S. B., Wei, L., Hao, L., Fang, N., Chang, M. W., Xu, R. Yang, Y. H. and Chen, Y., Sharper and Faster Nano Darts Kill More Bacteria: a Study of Antibacterial Activity of Individually Dispersed Pristine Single-Walled Carbon Nanotube, ACS Nano, 3, 3891-3902, 2009.
  39. Gunawan, P. and Xu, R.*, Lanthanide-Doped Layered Double Hydroxides Intercalated with Sensitizing Anions: Efficient Energy Transfer between Host and Guest Layers, J. Phys. Chem. C, 113, 17206-17214, 2009.
  40. Zhang, W., and Xu, R.*, Surface Engineered Active Photocatalysts without Noble Metals: CuS-ZnxCd1-xS Nanospheres by One-Step Synthesis. Int. J. Hydrog. Energy, 34, 8495-8503, 2009.
  41. Wang, Y. S., Hassan, M. S., Gunawan, P., Lau, R., Wang X., Xu, R.*, Polyelectrolyte Mediated Formation of Hydroxyapatite Microspheres of Controlled Size and Hierarchical Structure. J. Colloid Interface Sci., 339, 69-77, 2009.
  42. Chen, Y. Z., Ching, C. B. and Xu, R.*, Lipase Immobilization on Modified Zirconia Nanoparticles: Studies on the Effects of Modifiers, Process Biochem. , 44, 1245-1251, 2009.
  43. Kristian, N., Yu, Y. L., Gunawan, P., Xu, R., Deng, W. Q., Liu, X. W., Wang, X., Controlled synthesis of Pt-decorated Au nanostructure and its promoted activity toward formic acid electro-oxidation, Electrochim. Acta , 54, 4916-4924, 2009.
  44. Zhang, Y. X., Das, G. K., Xu, R.*, and Tan, T. T. Y.*, Tb-doped Iron Oxide: Bifunctional Fluorescent and Magnetic Nanocrystals, J. Mater. Chem., 19, 3696-3703, 2009.
  45. Gunawan, P. and Xu, R.*, Direct Assembly of Anisotropic Layered Double Hydroxide (LDH) Nanocrystals on Spherical Template for Fabrication of Drug-LDH Hollow Nanospheres, Chem. Mater., 21, 781-783, 2009.
  46. Qian, H. S., Han, G. C., Yang, H., Lin, G. F. and Xu, R.*, Investigation on Magnetic Properties of Hematite Superstructures with Controlled Microstructures, AJChE, 8, 48-57, 2008.
  47. Yuan, W., Jiang, G. H., Che, J. F., Qi, X. B., Xu, R., Chang, M. W., Chen, Y., Lim, S. Y., Dai, J. and Chan-Park, M. B., Deposition of Silver Nanoparticles on Multi-walled Carbon Nanotubes Grafted with Hyperbranched Poly(amidoamine) and their Antimicrobial Effects, J. Phys. Chem. C, 112, 18754-18759, 2008.
  48. Zhang, W., Zhong, Z. Y., Wang, Y. S. and Xu, R.*, Doped Solid Solution: (Zn0.95Cu0.05)1-xCdxS Nanocrystals with High Activity for H2 Evolution from Aqueous Solutions under Visible Light, J. Phys. Chem. C, 112, 17635-17642, 2008.
  49. Chen, Y. Z., Yang, C. T., Ching, C. B. and Xu, R.*, Immobilization of Lipases on Hydrophobilized Zirconia Nanoparticles: Highly Enantioselective and Reusable Biocatalysts, Langmuir , 24, 8877-8884, 2008.
  50. Lin, G. F., Zheng, J. W. and Xu, R.*, Template-Free Synthesis of Uniform CdS Hollow Nanospheres and Their Photocatalytic Activities, J. Phys. Chem. C, 112, 7363-7370, 2008.
  51. Gunawan, P. and Xu, R.*, Synthesis of Unusual Coral-like Layered Double Hydroxide Microspheres in a Nonaqueous Polar Solvent/Surfactant System, J. Mater. Chem., 18, 2112-2120, 2008.
  52. Qian, H. S., Gunawan, P., Zhang, Y. X., Lin, G. F., Zheng, J. W. and Xu, R.*, Template-Free Synthesis of Highly Uniform a-GaOOH Spindles and Conversion to a-Ga2O3 and b-Ga2O3, Cryst. Growth Des., 8, 1282-1287, 2008.
  53. Gunawan, P. and Xu, R.*, Direct control of drug release behavior from layered double hydroxides through particle interactions in solid aggregates, J. Pharm. Sci., 97, 4367-4378, 2008.
  54. Qian, H. S., Lin, G. F., Zhang, Y. X., Gunawan, P. and Xu, R.*, A new approach to synthesize uniform metal oxide hollow nanospheres via controlled precipitation, Nanotechnology, 18, Art. No. 355602 , 2007.
  55. Zhang, Y. X., Guo, J., White, T., Tan, T. T. Y.* and Xu, R.*, Y2O3: Tb nanocrystals self-assembly into nanorods by oriented attachment mechanism, J. Phys. Chem. C, 111, 7893-7897, 2007.
  56. Sampanthar, J. T., Huang, X., Dou, J., Teo, Y. N., Xu, R. and Wong, P. K., A novel oxidative desulphurization process to remove refractory sulfur compounds in diesel fuel, Appl. Cat. B - Env., 63, 85-93, 2005.
  57. Chen, F., Shen, S., Xu, X., Xu, R. and Kooli, F., Modification of micropore-containing SBA-3 by TEOS liquid phase deposition, Micropor. Mesopor. Mater., 79, 85-91, 2005.
  58. Xu, R. and Zeng, H. C., Self-generation of tiered surfactant superstructures for one-pot synthesis of Co3O4 nanocubes and their close- and non-closed-packed organizations, Langmuir, 20, 9780-9790, 2004.
  59. Zhu, Y. H., Ching, C. B., Carpenter, K., Xu, R., Selvaratnam S., Hosmane N. S. and Maguire J. A. Synthesis of the novel ionic liquid [N-pentylpyridinium](+) [closo-CB11H12] and its usage as a reaction medium in catalytic dehalogenation of aromatic halides, Appl. Organomet. Chem., 17, 346-350, 2003.
  60. Xu, R. and Zeng, H. C., Dimensional control of cobalt-hydroxide-carbonate nanorods and their thermal conversion to one-dimensional arrays of Co3O4 nanoparticles, J. Phy. Chem. B, 107, 12643-12649, 2003.
  61. Xu, R. and Zeng, H. C., Mechanistic investigation on salt-mediated formation of free-standing Co3O4 nanocubes at 95 oC, J. Phys. Chem. B, 107, 926-930. 2003.
  62. Xu, R. and Zeng, H. C., Mechanistic investigation on self-redox decompositions of cobalt-hydroxide-nitrate compounds with different nitrate anion configurations in interlayer space, Chem. Mater., 15, 2040-2048, 2003.
  63. Xu, Z. P., Xu, R. and Zeng, H. C., Sulfate-functionalized carbon/metal-oxide nanocomposites from hydrotalcite-like compounds, Nano Lett., 1, 703-706. 2001.
  64. Zeng, H. C., Ng, W. K., Cheong, L. H., Xie, R., Xu, R., Insertion direction of hydrogen in protonation of alpha-MoO3, J. Pys. Chem. B, 105, 7178-7181, 2001.
  65. Xu, R. and Zeng, H. C., Synthesis of nanosize supported hydrotalcite-like compounds CoAlx(OH)2+2x(CO3)y(NO3)x-2y.nH2O on gamma- Al2O3, Chem. Mater., 13, 297-303. 2001.

:: Patent ::

  • Xu, R., Zhang, Q. Y., Chan-Park, M. B., Beuerman, R., Development of High refractive index organic-inorganic interpenetrating polymer network (IPN) hydrogel nanocomposites for artificial cornea implants, US Provisional Patent filed.
  • Xu, R., Guanwan, P., Chan-Park, M. B., Guan, C., Wang, K., Chang, M. W, Development of Novel Silver Nanoparticle/Multi-walled Carbon Nanotube Nanohybrid Coatings on Polyacrylonitrile Hollow Fiber Membrane for Water Disinfection and Biofouling Control, US Provisional Patent filed.
  • Thirugnanasampanthar, J., Xu, R. and Dauzenberg, F. Simple and effective way of removal of sulfur from liquid fuel, US Patent 20070227951.

:: Conference ::

  1. Guan, C., Chang, M., Xu, R. and Wang, K., Chitosan Hydrogels for Adsorbing Silver Ions in Aqueous Solution and Its Bactericidal Properties, Annual Meeting of AIChE, Nov. 2010, Salt Lake City, US.
  2. Xu, R. Highly Efficient and Noble Metal-Free NiS/CdS Photocatalysts for H2 Evolution from Water under Visible Light, 17th Regional Symposium on Chemcial Engineering, Nov. 2010, Thailand (Invited Keynote).
  3. Wang, Y. B. and Xu, R. Highly Active Zn-Cd Binary Sulfides for H2 Production from Water Using Visible Light, 18th International Conference on Photochemical Conversion and Storage of Solar Energy, Jul 2010, South Korea.
  4. Chen, C. P., Gunawan, P., and Xu, R. Synthesis of Well-dispersed Magnetic Layered Double Hydroxides with Folate for Potential Targeted Drug Delivery, The International Symposium on Exploring the Frontiers of Chemical and Biomedical Engineering, May 2010, Singapore.
  5. Zhang, W., Wang, Y. B. and Xu, R. Development of Efficient Photocatalysts for H2 Production from Water Using Visible Light, 16th Regional Symposium on Chemcial Engineering, Dec. 2009, Philippines. (Invited Keynote)
  6. Xu, R., Wang, Y. S., Hassan, M. S. and Lau, R. Synthesis of Hydroxyapatite Microspheres of Controlled Sizes and Hierarchical Structures, Joint Symposium on Materials Science and Engineering for the 21st Century 2009 in Kyoto, Sep. 2009, Japan.
  7. Wang, Y. B., Zhang, W., and Xu, R. Synthesis of uniform Zn-Cu-Cd sulfide nanospheres and their photocatalytic activity evaluation under visible light, The International Symposium on Advanced Bio, Nano, and Pharmaceutical Science and Technology, May, 2009, China.
  8. Gunawan, P., and Xu, R. Development of nanostructured layered double hydroxides for potential biomedical applications, The International Symposium on Advanced Bio, Nano, and Pharmaceutical Science and Technology , May 2009, China.
  9. Chen, Y. Z., CaiTing Yang, Ching, C. B., and Xu, R. Immobilization of Lipases to Zirconia Nanoparticles: Highly Enantioselective and Reusable Biocatalysts, International Symposium on Recent Advances in Biotechnologies, Apr, 2008, China.
  10. Gunawan, P., Chen, F. X. and Xu, R. Synthesis of novel organo-layered double hydroxide and thermal conversion to nanocomposite materials, 14th Regional Symposium on Chemcial Engineering, Dec. 2007, Indonesia.
  11. Liu, D. P. and Xu, R., Synthesis and characterization of novel photocatalysts ZnxNi1-xTa2O6 (x = 0~1), 4th Asia Pacific Congress on Catalysis, Dec. 2006, Singapore.
  12. Zhang, Y. X., Tan, T. T. Y. and Xu, R., Low Temperature Synthesis of N-Doped mesoporous TiO2 spheres, 4th Asia Pacific Congress on Catalysis, Dec. 2006, Singapore.
  13. Bhattcahrayya, A., Zheng, J. W., Wu, P., Highfield, J., Xu, R., Dong, Z. L. and Chen, Z., Theoretical predication of band-gap narrowing in anatase by S, Se and Te anion dopants: sensitizers for TiO2 photocatalyst, 4th Asia Pacific Congress on Catalysis, Dec. 2006, Singapore.
  14. Gunawan, P. and Xu, R. Synthesis of novel hydrotalcite-like compounds (HTlcs) for biological and pharmaceutical Applications, International Conference on Exploring the Frontier of Nano, Bio & Pharmaceutical Technology, Sep. 2006, Tianjing, China.
  15. Xu, R., Tan, P. C. and Sampanthar, J. T., Synthesis and characterization of mixted Co3O4/CoSO4 oxidative catalysts through AOT-intercalated Co IICo III-hydrotalcite like precursor materials, International Congress on Catalysis, Jul. 2004, Paris, France.
  16. Xu, R. and Zeng, H. C., Salt-mediated formation of free-standing Co3O4 nanocubes at 95 oC, International Conference on Materials for Advanced Technologies, Dec. 2003, Singapore.
  17. Xu, R., Stork, W. H. J. And Zeng, H. C., XPS investigation of phase transitions on the surface of HDS catalysts, International Conference on Heterogeneous Catalysis, Jan. 2001, Bangkok, Thailand.
  18. Xu, R. and Zeng, H. C., Synthesis of Co-Al-HTlcs on g -alumina substrate for N2O decomposition, The International Workshop on Advances in Materials Science and Technology, Apr. 2000, Singapore.
Copyright © 2009 X. R.