fatin nasyuha razali, khairul naim ahmad.  (2025).  mangkin nikel atom tunggal: revolusi penukaran gas karbon dioksida kepada bahan api sintetik.  - arus mampan.  . 

au yong wai leem, masli irwan rosli, thivagaran veeraiya, khairul naim ahmad, mohd ambar yarmo, wan roslam wan ishak.  (2025).  techno-economic analysis of co2 to methane conversion.  - jurnal kejuruteraan.  573 - 589. 

abdullah amru indera luthfi, nur zahidah nasoha, muhammad zulhaziman mat salleh, khairul naim ahmad.  (2025).  sustainable bioprocessing of pineapple peel hydrolysate: optimized fermentation for xylitol production using candida tropicalis.  - 10th international conference and workshop on basic and applied sciences (icowobas) 2025.  . 

muhammad muaz lokman, abdullah amru indera luthfi, muhammad zulhaziman mat saleh, khairul naim ahmad.  (2025).  simulation and parameter study for the production of synthetic fuels from carbon dioxide hydrogenation using renewable energy.  - 10th international conference & workshop on basic and applied sciences .  . 

abbas ismail, khairul naim ahmad, nur ‘izzati ismail, nasrul amir abdul .  (2025).  student satisfaction survey on the implementation of online laboratory safety tests using the ukmfolio platform.  - program book international conference on engineering and built environment education .  65 - 65. 

fathin nasyuha razali, khairul naim ahmad, salma samidin, wan nor roslam wan isahak, muhammad zulhaziman mat salleh, siti sarahah sulhadi.  (2025).  advances in supported nickel single-atom catalysts for co2 valorization: synthesis, applications and stability enhancement.  - international journal of hydrogen energy.  1 - 21. 

khairul naim ahmad, masli irwan rosli, muhammad zulhaziman mat salleh, abdullah amru indera luthfi, yusuf al-mubin shaharin anwar.  (2025).  an interactive stem activity using process simulation to explore sustainable energy use at home.  - national conference on education and new learning technologies 2025.  . 

abdullah amru indera luthfi, salma md yunus, nor sakinah mohd said, muhammad zulhaziman mat salleh, khairul naim ahmad.  (2025).  kelulut sparkling: a stem-based experiential learning module on functional beverage innovation.  - national conference on education and new learning technologies 2025.  . 

khairul naim ahmad, masli irwan rosli, muhammad zulhaziman mat salleh, abdullah amru indera luthfi, yusuf al-mubin shaharin anwar.  (2025).  a gamified stem activity using process simulation to explore sustainable energy use at home.  - national conference on education and new learning technologies 2025 (ncent2025) conference e-proceedings.  670 - 673. 

muhammad zulhaziman mat salleh, nurasyqin abdul fattah, abdullah amru indera luthfi, khairul naim ahmad, ng yee sern, nor hakimin abdullah, mohd faizan jamaluddin.  (2025).  digital brainstorming: a comparative insight into emerging collaborative whiteboard tools.  - national conference on education and new learning technologies (ncent) 2025.  344 - 356. 

nur anira syafiqah hazman, azmi fadziyana mansor, abdullah amru indera luthfi, wan nor roslam wan isahak, muhammad zulhaziman mat salleh, masli irwan rosli, khairul naim ahmad.  (2025).  development of a techno-economic analysis model for thermocatalytic hydrogenation of carbon dioxide to methanol.  - jurnal kejuruteraan.  4117 - 4125. 

dalilah mohmad khaidar, wan nor roslam wan isahak, zatil amali che ramli, khairul naim ahmad.  (2024).  transition metal dichalcogenides-based catalysts for co2 conversion: an updated review.  - international journal of hydrogen energy.  35-50. 

salma samidin, wan nor roslam wan isahak, khairul naim ahmad, n. asikin mijan, muhammad rahimi yusop, alinda samsuri, g. abdulkareem-alsultan, mohd ambar yarmo.  (2024).  improving green hydrogen production: microwave-assisted synthesis of diverse ni-based nanocatalysts on al2o3 for thermochemical water splitting.  - fuel.  1 - 13. 

nur diyan mohd ridzuan, bamidele victor ayodele, nur najwa abdul talib, maizatul shima shaharun, azmi mohd shariff, khairul naim ahmad.  (2024).  synthesis and characterization of hydrophobic nickel catalyst supported on different oxides for continuous liquid phase catalytic exchange reaction.  - journal of industrial and engineering chemistry.  562 - 572. 

siti nur afiqah ab wahab, salma samidin, wan nor roslam wan isahak, khairul naim ahmad.  (2024).  formic acid decomposition into hydrogen using graphitic carbon nitride supported palladium catalyst.  - 1st international symposium on solar hydrogen.  . 

salma samidin, azizul hakim lahuri, wan nor roslam wan isahak, khairul naim ahmad, muhammad rahimi yusop, norliza dzakaria.  (2024).  surface and textural analyses for bimetallic nickel-based catalyst onto various support using microwave assisted synthesis.  - malaysian journal of chemistry.  46 - 55. 

wan nabilah manan, wan nor roslam wan isahak, zahira yaakob, salma samidin, khairul naim ahmad, mohd nor latif, ali faris aldoghachi, yun hin taufiq-yap.  (2024).  exploring enhanced syngas production via the catalytic performance of metal-doped x-ni/ceo2 (x = zr, la, sr) in the dry reforming of methane.  - journal of chemical technology and biotechnology.  2420 - 2433. 

zatil amali che ramli, jagadeesh pasupuleti, nik farah hanis nik zaiman, azran mohd zainoodin, khairul naim ahmad, nor fatina raduwan, yusra nadzirah yusoff, wan nor roslam wan isahak, tengku shafazila tengku saharuddin, sieh tiong kiong.  (2024).  unlocking the potential of pt-based and metal oxides catalysts in liquid fuel cells technologies: performance and challenges.  - ain shams engineering journal.  1 - 31. 

khairul naim ahmad, abdullah amru indera luthfi, nur izzati ismail.  (2023).  makmal penyelesaian terbuka kejuruteraan kimia: penyepaduan teori, penyelidikan dan pembangunan lestari.  - persidangan pendidikan kejuruteraan dan alam bina.  1-4. 

khairul naim ahmad, salma samidin, masli irwan rosli, muhammad rahimi yusop, mohammad b. kassim, bamidele victor ayodele, mohd ambar yarmo, wan nor roslam wan isahak.  (2023).  alkaline earth metal modified nickel nanoparticles supported on exfoliated g-c3n4 for atmospheric co2 methanation.  - journal of environmental chemical engineering.  1-11. 

ros nadiah rosli, khairul naim ahmad, aizat mohd taib, siti aimi nadia mohd yusoff.  (2023).  sifat-sifat fizikal, kimia dan morfologi tanah laterit di daerah bandar baharu, kedah.  - jurnal kejuruteraan.  1265-1272. 

salma samidin, khairul naim ahmad, mohd razali shamsuddin, maratun najiha abu tahari, azizul hakim lahuri, fairous salleh, n. asikin mijan, mohd suzeren md jamil, wan nor roslam wan isahak, mohd ambar yarmo, muhammad rahimi yusop.  (2023).  role of cr-doped nio in reduction under a low concentration of h2 and co.  - surfaces and interfaces journal.  1-13. 

khairul naim ahmad, wan nor roslam wan isahak, mohd ambar yarmo.  (2023).  gas asli sintetik: pembangunan mangkin dan pengayaan karbon dioksida.  - .  158.