About the Authors

Nurul Noramelya Zulkefli

Roles Investigation, Writing – original draft, Writing – review & editing

Affiliation Research Centre for Sustainable Process Technology (CESPRO), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM Bangi, Selangor, Malaysia

Mohd Shahbudin Masdar

Roles Project administration, Supervision, Writing – review & editing

shahbud@ukm.edu.my

Affiliations Research Centre for Sustainable Process Technology (CESPRO), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM Bangi, Selangor, Malaysia, Program of Chemical Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM Bangi, Selangor, Malaysia, Fuel Cell Institute, Universiti Kebangsaan Malaysia, UKM Bangi, Selangor, Malaysia

Wan Nor Roslam Wan Isahak

Roles Supervision, Writing – review & editing

Affiliations Research Centre for Sustainable Process Technology (CESPRO), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM Bangi, Selangor, Malaysia, Program of Chemical Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM Bangi, Selangor, Malaysia

Jamaliah Md Jahim

Roles Supervision, Writing – review & editing

Affiliations Research Centre for Sustainable Process Technology (CESPRO), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM Bangi, Selangor, Malaysia, Program of Chemical Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM Bangi, Selangor, Malaysia, Fuel Cell Institute, Universiti Kebangsaan Malaysia, UKM Bangi, Selangor, Malaysia

Syahril Anuar Md Rejab

Roles Resources, Writing – review & editing

Affiliation Sime Darby Research Sdn. Bhd., Jalan Pulau Carey, Pulau Carey, Selangor, Malaysia

Chew Chien Lye

Roles Resources, Writing – review & editing

Affiliation Sime Darby Research Sdn. Bhd., Jalan Pulau Carey, Pulau Carey, Selangor, Malaysia

Competing Interests

We have the following interests: This study was funded in part by Sime Darby Research Sdn Bhd. Syahril Anuar Md Rejab and Chew Chien Lye are employed by Sime Darby Research Sdn. Bhd. There are no patents, products in development or marketed products to declare. This does not alter our adherence to all the PLOS ONE policies on sharing data and materials.