Items where Author is "Ramli, Irmawati"

Nda-Umar, Usman Idris and Ramli, Irmawati and Muhamad, Ernee Noryana and Azri, Norsahida (2022) Synthesis and characterization of sulfonated carbon catalysts derived from biomass waste and its evaluation in glycerol acetylation. Biomass Conversion and Biorefinery, 12. 2045 - 2060. ISSN 2190-6823

Abdullah, Hayder Baqer and Ramli, Irmawati and Ismail, Ismayadi and Zaidi, Muhammad Azizan and Abdullah, Ahmad Aimanuddin Amzar (2021) Synthesis and morphological study of graphenated carbon nanotube aerogel from grapeseed oil. Journal of Nanoparticle Research, 23 (244). pp. 1-10. ISSN 1388-0764; ESSN: 1572-896X

Nda-Umar, Usman Idris and Ramli, Irmawati and Muhamad, Ernee Noryana and Azri, Norsahida and Ishak, Nor Shafizah and Yahaya, Muhamad and Yap, Yun Hin @ Md. Taufiq (2021) Organosulfonic acid-functionalized biomass-derived carbon as a catalyst for glycerol acetylation and optimization studies via response surface methodology. Journal of the Taiwan Institute of Chemical Engineers, 118. 355 - 370. ISSN 1876-1070/

Mohamad Rasid, Shera Farisya and Ramli, Irmawati and Ishak, Nor Shafizah and Yap, Taufiq Yun Hin and Muhamad, Ernee Noryana and Lee, Siew Ling and Salamun, Nurrulhidayah (2021) Assessment on the effect of sulfuric acid concentration on physicochemical properties of sulfated-titania catalyst and glycerol acetylation performance. Catalysts, 11 (12). art. no. 1542. pp. 1-18. ISSN 2073-4344

Sheh Omar, Nur Alia and Yap, Wing Fen and Ramli, Irmawati and Mohd Azmi, Umi Zulaikha and Hashim, Hazwani Suhaila and Abdullah, Jaafar and Mahdi, Mohd Adzir (2021) Cellulose and vanadium plasmonic sensor to measure Ni2+ ions. Applied Sciences-Basel, 11 (7). art. no. 2963. pp. 1-16. ISSN 2076-3417

Azri, Norsahida and Ramli, Irmawati and Usman Idris, Nda-Umar and Saiman, Mohd Izham and Yap, Taufiq Yun Hin (2021) Effect of different supports for copper as catalysts on glycerol hydrogenolysis to 1,2-propanediol. Journal of King Saud University, 33 (4). art. no. 101417. pp. 1-21. ISSN 1018-3647

Omar, Nur Alia Sheh and Yap, Wing Fen and Ramli, Irmawati and Sadrolhosseini, Amir Reza and Abdullah, Jaafar and Yusof, Nor Azah and Mustapha Kamil, Yasmin and Mahdi, Mohd Adzir (2021) An optical sensor for dengue envelope proteins using Polyamidoamine Dendrimer biopolymer-based nanocomposite thin film: enhanced sensitivity, selectivity, and recovery studies. Polymers, 13 (5). art. no. 762. pp. 1-14. ISSN 2073-4360

Nda Umar, Usman Idris and Ramli, Irmawati and Muhamad, Ernee Noryana and Azri, Norsahida and Yap, Taufiq Yun Hin (2020) Optimization and characterization of mesoporous sulfonated carbon catalyst and its application in modelling and optimization of acetin production. Molecules, 25 (22). art. no. 5221. pp. 1-23. ISSN 1420-3049

Azri, Norsahida and Ramli, Irmawati and Nda-Umar, Usman Idris and Shamsuddin, Mohd Razali and Saiman, Mohd Izham and Yap, Taufiq Yun Hin (2020) Copper-dolomite as effective catalyst for glycerol hydrogenolysis to 1,2-propanediol. Journal of the Taiwan Institute of Chemical Engineers, 112. 34 - 51. ISSN 1876-1070

Abdullah, Hayder Baqer and Ramli, Irmawati and Ismail, Ismayadi and Yusof, Nor Azah (2020) Direct synthesis of carbon nanotube aerogel using floating catalyst chemical vapor deposition: effect of gas flow rate. Chemical Papers, 74. 3359 - 3365. ISSN 0366-6352; ESSN: 1336-9075

Yahaya, Muhammad and Ramli, Irmawati and Muhamad, Ernee Noryana and Ishak, Nor Shafizah and Nda Umar, Usman Idris and Yap, Taufiq Yun Hin (2020) K2O doped dolomite as heterogeneous catalyst for fatty acid methyl ester production from palm oil. Catalysts, 10 (7). pp. 1-17. ISSN 2073-4344

Nda-Umar, Usman Idris and Ramli, Irmawati and Taufiq-Yap, Yun Hin and Muhamad, Ernee Noryana (2019) An overview of recent research in the conversion of glycerol into biofuels, fuel additives and other bio-based chemicals. Catalysts, 9 (15). pp. 1-47. ISSN 2073-4344

Islam, Md. Saiful and Ramli, Irmawati and Hasan, M. R. and Islam, Md. Moynul and Islam, Kh. Nurul and Hasan, Mahbub and Harmaen, Ahmad Saffian (2017) Effect of kenaf and EFB fiber hybridization on physical and thermo-mechanical properties of PLA biocomposites. Fibers and Polymers, 18 (1). 116 - 121. ISSN 1229-9197; ESSN: 1875-0052

Islam, Md. Saiful and Talib, Zainal Abidin and Hasan, Mahbub and Ramli, Irmawati and Mohamad Kassim, Mohamad Haafiz and Jawaid, Mohammad and Islam, A. and Inuwa, Ibrahim Mohammed (2017) Evaluation of mechanical, morphological, and biodegradable properties of hybrid natural fiber polymer nanocomposites. Polymer Composites, 38 (3). pp. 583-587. ISSN 0272-8397; ESSN: 1548-0569

Abdullah, Hayder Baqer and Ramli, Irmawati and Ismail, Ismayadi and Yusof, Nor Azah (2017) Hydrocarbon sources for the carbon nanotubes production by chemical vapour deposition: a review. Pertanika Journal of Science & Technology, 25 (2). pp. 379-396. ISSN 0128-7680; ESSN: 2231-8526

Mohd Noor, Syazwani and Ramli, Irmawati and Yap, Taufiq Yun Hin and Zainuddin, Norhazlin (2016) Effect of pH on the physicochemical properties and reducibility of MoVTeNbOx catalysts. Malaysian Journal of Analytical Sciences, 20 (5). pp. 1073-1083. ISSN 1394-2506

Mohd Noor, Syazwani and Ramli, Irmawati and Yap, Taufiq Yun Hin and Zainuddin, Norhazlin (2016) Effect of pH on the physicochemical properties of MoVTeNbOx catalysts for oxidation of propane to acrylic acid. International Journal of Scientific & Technology Research, 5 (1). pp. 40-45. ISSN 2277-8616

C. M., Aqliliriana and Noryana Muhamad, Ernee and Ramli, Irmawati (2015) Preparation and characterization of modified calcium oxide from natural sources and their application in the transesterification of palm oil. International Journal of Scientific & Technology Research, 4 (11). pp. 168-175. ISSN 2277-8616

Wong, Yong Chen and Tan, Yen Ping and Yap, Taufiq Yun Hin and Ramli, Irmawati and Tee, Han Song (2015) Biodiesel production via transesterification of palm oil by using CaO–CeO2 mixed oxide catalysts. Fuel, 162. pp. 288-293. ISSN 0016-2361; ESSN: 1873-7153

Wong, Yee Ching and Tan, Yen Ping and Yap, Taufiq Yun Hin and Ramli, Irmawati (2015) An optimization study for transesterification of palm oil using response surface methodology (RSM). Sains Malaysiana, 44 (2). pp. 281-290. ISSN 0026-6039

Yap, Taufiq Yun Hin and Yuen, Choon Seon and Nawi @ Mohamed, Nurul Suziana and Ramli, Irmawati (2014) Effects of Bi and Ni on the properties of a vanadium phosphorus oxide catalyst. Chinese Journal of Catalysis, 35 (2). pp. 270-276. ISSN 1872-2067

Wong, Yee Ching and Tan, Yen Ping and Yap, Taufiq Yun Hin and Ramli, Irmawati (2014) Effects of calcination temperatures of CaO/Nb2O5 mixed oxides catalysts on biodiesel production. Sains Malaysiana, 43 (5). pp. 783-790. ISSN 0126-6039

Naidir, Ferra and Yunus, Robiah and Mohd. Ghazi, Tinia Idaty and Ramli, Irmawati (2012) Synthesis of epoxidized palm oil-based trimethylolpropane ester by in situ epoxidation method. Pertanika Journal of Science & Technology, 20 (2). pp. 331-337. ISSN 0128-7680; ESSN: 2231-8526

Taufik, Safura and Yusof, Nor Azah and Tan, Wee Tee and Ramli, Irmawati (2011) Bismuth oxide nanoparticles/chitosan/modified electrode as biosensor for DNA hybridization. International Journal of Electrochemical Science, 6 (-). pp. 1880-1891. ISSN 1452-3981

Jabar, Azyan Hazwani and Khalid, Kaida and Hassan, Jumiah and Ramli, Irmawati (2010) Monitoring microwave dielectric properties during transesterification reaction for palm biodiesel production. Solid State Science and Technology, 18 (1). pp. 217-223. ISSN 0128-7389

Waje, Samaila Bawa and Yahya, Noorhana and Ramli, Irmawati (2009) Observation of cotton-like bismuth oxide (β-Bi2O2.5) prepared via pulsed laser ablation deposition. Pertanika Journal of Science & Technology, 17 (2). pp. 299-306. ISSN 0128-7680; ESSN: 2231-8526

Beh, Hoe Guan and Ramli, Irmawati and Yahya, Noorhana and Lim, K.P. (2009) Phase evolution and crystallite size of La-substituted YIG at differentcalcination temperatures. International Journal of Engineering and Technology, 9 (9). pp. 59-62. ISSN 2049-3444

Ramli, Irmawati and Masuri, Shafizah (2009) The production of high purity hexagonal MoO3 through the acid washing of as-prepared solids. International Journal of Basic and Applied Sciences, 9 (9). pp. 241-244. ISSN 2077-1223

Yahya, Noorhana and Bawa Waje, Samaila and Ramli, Irmawati (2008) Carbon nanopipe catalysed by as-prepared NiO nanoparticles. Sains Malaysiana, 37 (3). pp. 289-293. ISSN 0026-6039

Muhamad, Ernee Noryana and Ramli, Irmawati and Yap, Taufiq Yun Hin and Abdullah, Abdul Halim and Kniep, Benjamin Louis and Girgsdies, Frank and Ressler, Thorsten (2008) Comparative study of Cu/ZnO catalysts derived from different precursors as a function of aging. Catalysis Today, 131 (1-4). pp. 118-124. ISSN 0920-5861

Abdullah, Abdul Halim and Mohd Noor, Nor Hayati and Ramli, Irmawati and Hashim, Mansor (2008) Effect of precipitation route on the properties of antimony trioxide. Materials Chemistry and Physics, 111 (2-3). pp. 201-204. ISSN 0254-0584

Tan, Yee Wean and Ramli, Irmawati and Yap, Taufiq Yun Hin (2007) Effect of calcination temperature on the characteristics of MoV oxides prepared via reflux method. The Malaysian Journal of Analytical Sciences, 11 (1). pp. 145-153. ISSN 1394-2506

Muhamad, Ernee Noryana and Ramli, Irmawati and Abdullah, Abdul Halim and Yap, Taufiq Yun Hin and Abdul Hamid, Sharifah Bee (2007) Effect of number of washing on the characteristics of copper oxide nanopowders. The Malaysian Journal of Analytical Sciences, 11 (1). pp. 294-301. ISSN 1394-2506

Woi, Pei Meng and Ramli, Irmawati and Yap, Taufiq Yun Hin (2007) Influence of organic species on the characteristics of Mo-V oxide. The Malaysian Journal of Analytical Sciences, 11 (1). pp. 160-165. ISSN 1394-2506

Yap, Taufiq Yun Hin and Saw, Chaing Shen and Ramli, Irmawati (2005) Activation of VOHPO4 · 0.5H2O in propane/air mixture: effect on structural, morphological, oxidant’s behaviour and catalytic property of (VO)2P2O7 catalysts for propane oxidation. Catalysis Letters, 105 (1-2). pp. 103-110. ISSN 1011-372X; ESSN: 1572-879X

Ramli, Irmawati and Mhamat Nasudin, Noorfarizan Nasriah and Yap, Taufiq Yun Hin and Abdul Hamid, Sharifah Bee (2004) Characterization of bismuth oxide catalysts prepared from bismuth trinitrate pentahydrate: influence of bismuth concentration. Catalysis Today, 93-95. pp. 701-709. ISSN 0920-5861

Ramli, Irmawati and Hamzah, Ahmad Sazali and Aimi, Norio and Lajis, Md Nordin (1997) Chemical Constituents of Vitex ovata (Verbenaceae). Pertanika Journal of Science & Technology, 5 (1). pp. 105-109. ISSN 0128-7680

Islam, Md. Saiful and Ramli, Irmawati and S. N., Kamilah and Hassan, Azman and Mohamad Kassim, Mohamad Haafiz and Ahmed, Abu Saleh (2017) Natural polymer-based biomaterials and its properties. In: Handbook of Composites from Renewable Materials. Scrivener Publishing, Beverly, Massachusetts, pp. 607-629. ISBN 9781119223665

Islam, Md. Saiful and Ramli, Irmawati and Hamdan, Sinin and Rahman, Rezaur and Aiman, Ahmad Adib and Abdul Rasyid and Keirudin, Amyrah Auni (2016) Impact of nanoclay on the properties of wood polymer nanocomposites. In: Nanaclay Reinforced Polymer Composites. Springer, Singapore, pp. 291-307. ISBN 9789811019524; EISBN: 9789811019531

Ismail, Ahmad Zaidi and Ramli, Irmawati (2009) Effect of reflux time and calcination temperature on structure of MoVTeNbOx catalysts synthesized by reflux method. In: Fundamental Sciance Congress 2009 (FSC 2009), 17-18 June 2009, Auditorium Jurutera, Fakulti Kejuruteraan, Universiti Putra Malaysia. (pp. 201-202).

Masuri, Shafizah and Ramli, Irmawati and Ho, Mun Yee (2009) Effect of vanadium composition on the physicochemical properties of MoVTeNbOx synthesized by reflux method. In: Fundamental Sciance Congress 2009 (FSC 2009), 17-18 June 2009, Auditorium Jurutera, Fakulti Kejuruteraan, Universiti Putra Malaysia. (pp. 307-308).

Che Ku Hitam, Che Ku Nor Liana and Mohd Yusof, Farrah Nadia and Ramli, Irmawati and Abdullah, Abdul Halim and Yap, Taufiq Yun Hin (2009) Synthesis and characterization of MoVTeNb mixed oxides prepared by reflux and sol-gel methods. In: Fundamental Sciance Congress 2009 (FSC 2009), 17-18 June 2009, Auditorium Jurutera, Fakulti Kejuruteraan, Universiti Putra Malaysia. (pp. 205-206).

Abdul Rahman, Mohd Basyaruddin and Saiman, Mohd Izham and Ramli, Irmawati and Abdullah, Abdul Halim (2007) Influence of precipitating and solvent on the formation of antimony tetraoxide catalyst. In: 13th International Symposium on the Relations Between Homogeneous and Heterogeneous Catalysis , 16-20 July 2007, University of California, Berkeley, California. . (Unpublished)

Irmawati Ramli (2011) A method for synthesizing multi-metal oxide catalyst. PI2011003855.

Kaida Khalid (2010) Processes for producing virgin coconut oil, coconut cooking oil and raw material for coconut biodiesel. UNSPECIFIED.

Kaida Khalid (2008) Processes for producing virgin coconut oil, coconut cooking oil and raw material for coconut biodiesel. PCT/MY2008/000089.