
Jibril AbdulsalamTechnical University of Darmstadt | TU · Institute of Materials Science
Jibril Abdulsalam
Ph.D
About
41
Publications
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Introduction
My primary research focus is on design, characterization, modification, and analysis of porous materials for gas and energy storage.
Additional affiliations
Education
March 2007 - August 2010
January 1999 - June 2004
Publications
Publications (41)
Lead (II) is one of the most toxic heavy metals found in South African wastewater due to various mining activities. Hence, effective and cheaper methods are needed to treat this wastewater before it is released to the environment. The effectiveness of hydrochar, synthesised from pulp and paper sludge, as an adsorbent for lead (II) removal from synt...
The acceleration of the global energy transition and the achievement of Sustainable Development Goals (SDGs) depend on promoting innovation in energy storage technologies. MXenes and their composites have emerged as novel electrodes for electrochemical energy storage. Numerous investigations into MXene binary nanocomposites have shown that they can...
Avocado waste, which includes the peel and seed, is a promising biomass source for highly porous materials crucial to establishing an economical and efficient hydrogen economy. Hydrothermally pre-treated avocado waste was explored as a precursor for biocarbon optimized for hydrogen storage, employing the design of experiment to vary activation temp...
Metal-organic frameworks (MOFs) have gained significant research attention in recent times as electrode materials for energy storage devices due to their high porosity, high chemical and structural tunability, and excellent textural properties. However, one of the key drawbacks to the applications of MOFs as electrodes for energy storage is their l...
This paper presents the results of an ultrasonic-assisted alkali-acid leaching process for concurrently recovering rare earth elements (REEs) and coal from South African run-of-mine (RMC) and discard (DC) coal. The response surface methodology (RSM) was used during the alkali leaching of DC to evaluate and optimise the process parameters. REE recov...
The coal ash fusion characteristics are a significant factor to consider while designing a boiler to match a coal or different coal range. Characterization of coal ash provides the fundamental mechanism that controls the heating efficiency of the coal in a pulverized coal-fired boiler, regarding the coal minerals association. Changes in coal proper...
Biomass resources are gaining attention to address environmental issues, ensure energy efficiency, and ensure long-term fuel sustainability. The use of biomass in its raw form is known to present a number of issues, including high shipping, storage, and handling costs. Hydrothermal carbonization (HTC), for example, can increase the physiochemical p...
The valorization of a South African paper mill waste sludge into an activated biocarbon electrode material for energy storage application is reported. The valorization method is a two-step synthesis that comprises hydrothermal carbonization and NaOH activation of paper mill waste at 700 °C to produce activated biocarbon. The development of high por...
As industrialisation continues to grow globally, the need for mineral resources also increases as critical inputs to boost various crucial sectors such as health, infrastructure, communication, and transportation, amongst others. To meet these demands, more mineral resources must be explored, exploited, and processed. In recent years, the challenge...
South Africa generates around 60 million tonnes of coal discards each year, with over 1.2 billion tonnes landfilled in discard dumps and slurry ponds. The huge quantity of coal discards generated within the past decades, which is a significant liability to the mining industry and the environment, presents an opportunity to reuse this resource. This...
The supply shortage of rare earth elements (REEs) for use in numerous high-tech applications has become an incentive for the prospecting of REEs from coal and coal discard. In this study, an optimised leaching process for the recovery of REEs from coal using the Design Expert (DOE) is reported. Response surface methodology (RSM) was used to investi...
The conventional steam-distillation method requires a high amount of saturated steam and as a result, a lot of energy. Besides being energy-intensive, conventional steam-distillation processes emit carbon dioxide into the atmosphere. The energy demand in essential oils processing and related agro-based processes can be alleviated by using concentra...
Historically, the idea of designing and installing rockbolts in rockmasses can be traced back to the construction of the Snowy Mountain hydroelectric scheme in Australia, which was completed in 1974. The use of rockbolts as a ground support system has been widely applied to enhance the stability of structures in mining and to resist the movement of...
There is literature inadequacy for the application of high internal phase water-in-oil (HIP W/O) emulsion on agglomeration and flotation of weathered discards from coal discard dumps. In this study, two oxidized coal discards were beneficiated using W/O HIP emulsion technique. The performance of the W/O emulsion technique with an internal dispersed...
Over the last few decades, nanomaterials have become a subject of key research interests and are gaining prominence in technological advancement, thanks to their remarkable physical, chemical, and mechanical features as well as their wide spectrum of applications in different fields when compared to bulk materials. Several analogues of nanomaterial...
The preparation of porous carbons by KOH activation from three different coal wastes in South Africa was modeled and optimized using an artificial neural network and whale optimization algorithm (ANN-WOA). The potential for methane adsorption of the optimized porous carbons was investigated. The optimal conditions for preparing the porous carbons,...
The utilization of biomass as a solid fuel for co-firing has received great attention from boiler manufacturers as a clean coal technology (CCT) option. This research aimed to produce biocoal pellets, as a clean energy fuel, using hydrochar from trees planted to rehabilitate acid mine drainage (AMD) water and fine coal discards. The hydrochar was s...
A 12-year-old planted woodlands Searsia lancea tree, grown on acid mine drainage for phytoremediation of polluted groundwater on gold and uranium mines in South Africa,
was used in this research. The research describes the fuel-related characteristics and the influence of different operating conditions on the hydrothermal carbonization of the bioma...
The distribution of the various organic and inorganic constituents and their influences on the combustion of coal has been comprehensively studied. However, the combustion characteristics of pulverized coal depend not only on rank but also on the composition, distribution, and combination of the macerals. Unlike the proximate and ultimate analyses,...
Spontaneous combustion has been a long-standing challenge affecting coal mines globally as it jeopardises the financial and safety aspect of mining operations. It does not only damage assets but can also injure mineworkers due to inhalation of the noxious emissions or extreme burning. To manage this problem, different experimental methods and predi...
Isosteric heat of adsorption (H st) is critical for evaluating the thermal effects of adsorption-based storage systems. Poor management of the thermal effects of an adsorptive storage system often alters the overall performance of the storage system. In this study, methane equilibrium uptake on activated carbons derived from coal discards and isost...
A spontaneous combustion test termed the Wits-Ehac test was used to examine the spontaneous combustion liability of activated carbons prepared using KOH activation from three coal waste samples obtained in South African Coalfield. The effect of KOH addition on the activated carbon textural characteristics, physicochemical properties, and self-heati...
Globally, the provision of energy is becoming an absolute necessity. Biomass resources are abundant and have been described as a potential alternative source of energy. However, it is important to assess the fuel characteristics of the various available biomass sources. Soft computing techniques are presented in this study to predict the mass yield...
Spontaneous combustion is the greatest hurdle faced in coal mining, requiring a more precise solution that is effective to predict the likelihood of its occurrence. The phenomenon has long been a concern affecting flora and fauna, mining machinery, coal reserves, and consuming essential and nonrenewable resources. To predict this occurrence , the a...
Globally, the provision of energy is becoming an absolute necessity. Biomass resources are abundant and have been described as a potential alternative source of energy. However, it is important to assess the fuel characteristics of the various available biomass sources. Soft computing techniques are presented in this study to predict the mass yield...
The technological advancement of drones benefited the mining industry and positively transformed operations by providing real-time data. This allows for the identification and mitigation of mining hazards as they emerge, rapid collection of data in risky locations and the ability to share accurate maps and models with shareholders. In order to bett...
Porous, granular or fibrous materials that contain oxidizable organic
constituents often experience self-heating that leads to spontaneous
combustion. Activated carbon is known to be prone to self-heating
because of its high surface area. Experiments were conducted to
identify factors likely to cause self-heating of materials for producing
activate...
Adsorbed natural gas (ANG) storage has been identified as the most promising low-pressure alternative to storing natural gas. However, in addition to the thermal management of the system, successful implementation of this technology is largely constrained by the cost of adsorbents. The usefulness and cost of suitable adsorbent such as activated car...
Lacking in literature is the use of discard coal to produce activated carbon and in its subsequent use in the storage of natural gas. In this study, the characterization and gas storage evaluation of a largely porous activated carbon with large surface area synthesized from discard coal were investigated. Discard coals are waste material generated...
Availability, tuneable microstructure, and large specific surface area of porous carbon materials have made it suitable for gas storage applications. In this study, activated carbons were prepared from three distinct South Africa coal wastes (run-of-mine fines, discard, and flotation slurry) by KOH activation. Preliminary analysis (proximate and ul...
Increasing demand in global energy resources has necessitated the need for a breakthrough in energy storage system development. The unique features of graphene make it appealing in energy storage applications. Outstanding performance in energy storage devices has been attributed to the remarkable properties of graphene such as large specific surfac...
The development of new, efficient and cost-effective technologies for acid gases (CO2 and H2S) removal from natural gas is pertinent for cleaner energy productions. The removal of acid gases from natural gas can be carried out using different techniques (chemical, physical or hybrid). Although the widely employed techniques are generally effective,...
The objective of this study is to synthesis porous carbon materials from coal wastes such as discards, run of mine fines and flotation slurry; waste from coal beneficiation process, by chemical activation using potassium hydroxide (KOH).
Adsorbed natural gas (ANG) technology has been proposed as a viable alternative to liquefied natural gas and compressed natural gas for the storage and transportation of natural gas. However, the extensive usage and commercialization of the adsorbed natural gas (ANG) storage system is largely constrained by adsorbent cost besides the thermal manage...
Ph.D. Research Proposal Presentation
Natural gas is an important source of energy. The benefits of natural gas over conventional fuels are numerous; it is much cheaper, cleaner, efficient and has lower emission than commonly used fuels. The distribution of natural gas is complex and highly capital intensive, thereby making natural gas delivery to secondary consumers such as, small and...
Questions
Questions (3)
Please I need help with how to assemble a two electrodes cell for supercapacitor using swagelok fittings.
Thank you.
Please can anyone help with COMSOL. I am trying to simulate gas storage in a porous media but I am at a loss on how to go about it especially how to input my mass balance, momentum and energy balance equations. Any helpful links, resources or tips will be highly appreciated. Thank you
Please i need help on how to convert methane adsorption data from cm3/g to volumetric capacity (v/v).