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Taofeeq Ibn-Mohammed; Khameel B. Mustapha. Life Cycle Analysis of Solar Photovoltaic Technologies. Photovoltaic Sustainability and Management 2021, 1 -28.
AMA StyleTaofeeq Ibn-Mohammed, Khameel B. Mustapha. Life Cycle Analysis of Solar Photovoltaic Technologies. Photovoltaic Sustainability and Management. 2021; ():1-28.
Chicago/Turabian StyleTaofeeq Ibn-Mohammed; Khameel B. Mustapha. 2021. "Life Cycle Analysis of Solar Photovoltaic Technologies." Photovoltaic Sustainability and Management , no. : 1-28.
As product development becomes increasingly complex, the demand for the earth's mineral ores increases and with it, the challenge to achieve global “sustainability”. Chemical elements are the building blocks of natural resources which are sourced from across the planet to manufacture globally traded goods. While global technological, social and economic progress accelerates, evaluating the sustainability of these building blocks remains a challenge. Numerous methodologies to evaluate sustainability exist but most rely on high levels of data collection. In this paper, a methodology is presented within a multi-criteria decision analysis and composite indicator framework with the aim of rapidly and comprehensively estimating the sustainability of a chemical element . The framework is based on triple bottom line principles; the environment, economy and society, to measure the sustainability of 59 chemical elements. The output, the chemical element sustainability index (CESI), is a single value supported by the aggregation of the Human Development Index, Global Warming Potential, and National Economic Importance indicators, derived through a rigorous and systematic selection process. Recycling rate is employed within the framework as a control variable given its importance as a sustainability strategy. The results show that the greater the Human Development Index, National Economic Importance and Recycling Rate, and the lower the Global Warming Potential, the more sustainable the chemical element is, and vice-versa. The CESI was validated using three representative piezoelectric materials as a case study. The framework presented is useful for product designers, policy makers and educational bodies, to support decision making towards sustainable production and consumption.
Lucy Smith; Taofeeq Ibn-Mohammed; Ian M. Reaney; S. C. Lenny Koh. A Chemical Element Sustainability Index. Resources, Conservation and Recycling 2020, 166, 105317 .
AMA StyleLucy Smith, Taofeeq Ibn-Mohammed, Ian M. Reaney, S. C. Lenny Koh. A Chemical Element Sustainability Index. Resources, Conservation and Recycling. 2020; 166 ():105317.
Chicago/Turabian StyleLucy Smith; Taofeeq Ibn-Mohammed; Ian M. Reaney; S. C. Lenny Koh. 2020. "A Chemical Element Sustainability Index." Resources, Conservation and Recycling 166, no. : 105317.
The World Health Organization declared COVID-19 a global pandemic on the 11th of March 2020, but the world is still reeling from its aftermath. Originating from China, cases quickly spread across the globe, prompting the implementation of stringent measures by world governments in efforts to isolate cases and limit the transmission rate of the virus. These measures have however shattered the core sustaining pillars of the modern world economies as global trade and cooperation succumbed to nationalist focus and competition for scarce supplies. Against this backdrop, this paper presents a critical review of the catalogue of negative and positive impacts of the pandemic and proffers perspectives on how it can be leveraged to steer towards a better, more resilient low-carbon economy. The paper diagnosed the danger of relying on pandemic-driven benefits to achieving sustainable development goals and emphasizes a need for a decisive, fundamental structural change to the dynamics of how we live. It argues for a rethink of the present global economic growth model, shaped by a linear economy system and sustained by profiteering and energy-gulping manufacturing processes, in favour of a more sustainable model recalibrated on circular economy (CE) framework. Building on evidence in support of CE as a vehicle for balancing the complex equation of accomplishing profit with minimal environmental harms, the paper outlines concrete sector-specific recommendations on CE-related solutions as a catalyst for the global economic growth and development in a resilient post-COVID-19 world.
T. Ibn-Mohammed; K.B. Mustapha; J. Godsell; Z. Adamu; K.A. Babatunde; D.D. Akintade; A. Acquaye; H. Fujii; M.M. Ndiaye; F.A. Yamoah; S.C.L. Koh. A critical analysis of the impacts of COVID-19 on the global economy and ecosystems and opportunities for circular economy strategies. Resources, Conservation and Recycling 2020, 164, 105169 -105169.
AMA StyleT. Ibn-Mohammed, K.B. Mustapha, J. Godsell, Z. Adamu, K.A. Babatunde, D.D. Akintade, A. Acquaye, H. Fujii, M.M. Ndiaye, F.A. Yamoah, S.C.L. Koh. A critical analysis of the impacts of COVID-19 on the global economy and ecosystems and opportunities for circular economy strategies. Resources, Conservation and Recycling. 2020; 164 ():105169-105169.
Chicago/Turabian StyleT. Ibn-Mohammed; K.B. Mustapha; J. Godsell; Z. Adamu; K.A. Babatunde; D.D. Akintade; A. Acquaye; H. Fujii; M.M. Ndiaye; F.A. Yamoah; S.C.L. Koh. 2020. "A critical analysis of the impacts of COVID-19 on the global economy and ecosystems and opportunities for circular economy strategies." Resources, Conservation and Recycling 164, no. : 105169-105169.
The rising cost of energy and concerns about the environmental impact of manufacturing processes have necessitated the need for more efficient and sustainable manufacturing. The ceramic industry is an energy intensive industrial sector and consequently the potential to improve energy efficiency is huge, particularly through the introduction of modern sintering technologies. Although several energy efficient sintering processes have been developed, there is no comprehensive techno-economic analysis which compares and contrasts these techniques. This paper presents a critical review and analysis of a number of sintering techniques and compares them with the recently developed cold sintering process (CSP), including mode of operation, sintering mechanism, typical heating rates, duration of sintering, energy consumption profile and energy saving potential, limitations, key challenges for further development and current research efforts. By using a figure of merit, pounds per tonne of CO2 saved (£/tCO2-eq), which links initial capital investment with energy savings, within a framework derived from ranking principles such as marginal abatement cost curves and Pareto optimisation, we have demonstrated that under the scenarios considered for 3 separate functional oxides ZnO, PZT and BaTiO3, CSP is the most economically attractive sintering option, indicating lower capital costs and best return on investment as well as considerable energy and emission savings. Although the current work establishes the viability of CSP as a competitive and sustainable alternative to other sintering techniques, the transition from laboratory to industry of CSP will require hugely different facilities and instrumentation as well as relevant property/performance validation to realise its full potential.
T. Ibn-Mohammed; C.A. Randall; Khameel Mustapha; Jing Guo; J. Walker; S. Berbano; S.C.L. Koh; D. Wang; D.C. Sinclair; I.M. Reaney. Decarbonising ceramic manufacturing: A techno-economic analysis of energy efficient sintering technologies in the functional materials sector. Journal of the European Ceramic Society 2019, 39, 5213 -5235.
AMA StyleT. Ibn-Mohammed, C.A. Randall, Khameel Mustapha, Jing Guo, J. Walker, S. Berbano, S.C.L. Koh, D. Wang, D.C. Sinclair, I.M. Reaney. Decarbonising ceramic manufacturing: A techno-economic analysis of energy efficient sintering technologies in the functional materials sector. Journal of the European Ceramic Society. 2019; 39 (16):5213-5235.
Chicago/Turabian StyleT. Ibn-Mohammed; C.A. Randall; Khameel Mustapha; Jing Guo; J. Walker; S. Berbano; S.C.L. Koh; D. Wang; D.C. Sinclair; I.M. Reaney. 2019. "Decarbonising ceramic manufacturing: A techno-economic analysis of energy efficient sintering technologies in the functional materials sector." Journal of the European Ceramic Society 39, no. 16: 5213-5235.
Functional ceramics such as piezoelectrics, thermoelectrics, magnetic materials, ionic conductors and semiconductors are opening new frontiers that underpin numerous aspects of modern life. This widespread usage comes with a responsibility to understand what impact their mass production has on the environment. Life Cycle Assessment (LCA) is a tool employed for the identification of sustainable materials pathways through the consideration of environmental burdens of materials both during fabrication and as a final product. Although the LCA technique has been widely used for the evaluation of environmental impacts in numerous product supply chains, its application for environmental profiling of functional ceramics is now gaining attention. This paper presents a review of current developments in LCA, including existing and emerging applications with emphasis on the development and fabrication of functional materials and devices (FM&D). Selected published works on LCA of functional ceramics are discussed, highlighting the importance of adopting LCA at the design stage and/or at laboratory stage before expensive investments and resources are committed. Drawing from the extant literature, we show that the integration of environmental and sustainability principles into the overall process of FM&D manufacturing, in a way that anticipates foreseeable harmful consequences whilst identifying opportunities for improvement, can aid the timely communications of key findings to functional materials developers. This guides the orientation of research, development and deployment and provides insights towards the prioritisation of research activities whilst potentially averting unintended consequences. It is intended that the review presented will encourage the materials science community to engage with LCA to address important materials design, substitution and optimisation needs. This article is protected by copyright. All rights reserved.
Lucy Smith; Taofeeq Ibn‐Mohammed; Lenny Koh; Ian M. Reaney; S. C. Lenny Koh. Life cycle assessment of functional materials and devices: Opportunities, challenges, and current and future trends. Journal of the American Ceramic Society 2019, 102, 7037 -7064.
AMA StyleLucy Smith, Taofeeq Ibn‐Mohammed, Lenny Koh, Ian M. Reaney, S. C. Lenny Koh. Life cycle assessment of functional materials and devices: Opportunities, challenges, and current and future trends. Journal of the American Ceramic Society. 2019; 102 (12):7037-7064.
Chicago/Turabian StyleLucy Smith; Taofeeq Ibn‐Mohammed; Lenny Koh; Ian M. Reaney; S. C. Lenny Koh. 2019. "Life cycle assessment of functional materials and devices: Opportunities, challenges, and current and future trends." Journal of the American Ceramic Society 102, no. 12: 7037-7064.
The prohibition of lead in many electronic components and devices due to its toxicity has reinvigorated the race to develop substitutes for lead zirconate titanate (PZT) based mainly on the potassium sodium niobate (KNN) and sodium bismuth titanate (NBT). However, before successful transition from laboratory to market, critical environmental assessment of all aspects of their fabrication and development must be carried out in comparison with PZT. Given the recent findings that KNN is not intrinsically ‘greener’ than PZT, there is a tendency to see NBT as the solution to achieving environmentally lead-free piezoelectrics competitive with PZT. The lower energy consumed by NBT during synthesis results in a lower overall environmental profile compared to both PZT and KNN. However, bismuth and its oxide are mainly the by-product of lead smelting and comparison between NBT and PZT indicates that the environmental profile of bismuth oxide surpasses that of lead oxide across several key indicators, especially climate change, due to additional processing and refining steps which pose extra challenges in metallurgical recovery. Furthermore, bismuth compares unfavourably with lead due to its higher energy cost of recycling. The fact that roughly 90-95% of bismuth is derived as a by-product of lead smelting constitutes a major concern for future upscaling. As such, NBT and KNN do not offer competitive edge from an environmental perspective in comparison to PZT. The findings in this work have global practical implications for future Restriction of Hazardous Substances (RoHS) legislation for piezoelectric materials and demonstrate the need for a holistic approach to the development of sustainable functional materials.
Taofeeq Ibn-Mohammed; Ian Reaney; S.C.L. Koh; Adolf Acquaye; D.C. Sinclair; C.A. Randall; F.H. Abubakar; L. Smith; G. Schileo; L. Ozawa-Meida. Life cycle assessment and environmental profile evaluation of lead-free piezoelectrics in comparison with lead zirconate titanate. Journal of the European Ceramic Society 2018, 38, 4922 -4938.
AMA StyleTaofeeq Ibn-Mohammed, Ian Reaney, S.C.L. Koh, Adolf Acquaye, D.C. Sinclair, C.A. Randall, F.H. Abubakar, L. Smith, G. Schileo, L. Ozawa-Meida. Life cycle assessment and environmental profile evaluation of lead-free piezoelectrics in comparison with lead zirconate titanate. Journal of the European Ceramic Society. 2018; 38 (15):4922-4938.
Chicago/Turabian StyleTaofeeq Ibn-Mohammed; Ian Reaney; S.C.L. Koh; Adolf Acquaye; D.C. Sinclair; C.A. Randall; F.H. Abubakar; L. Smith; G. Schileo; L. Ozawa-Meida. 2018. "Life cycle assessment and environmental profile evaluation of lead-free piezoelectrics in comparison with lead zirconate titanate." Journal of the European Ceramic Society 38, no. 15: 4922-4938.
Globally, the issue of climate change due to greenhouse gas (GHG) emissions is now broadly acknowledged as one of the major challenges facing humankind that requires urgent attention. Accordingly, considerable efforts on clean energy technologies and policy recommendations have been developed to address this challenge. Solid oxide fuel cells (SOFCs) have been touted to play a role in achieving a reduction in global GHG emissions, offering numerous advantages including higher efficiencies and reduced emissions, over other conventional methods of energy generation. The increasing recognition and emphasis on fuel cells as a representative power generation system of the future has raised concerns over their environmental profile. Extensive research regarding the environmental profile of current structures of SOFCs can be found in the literature, but none consider the use of new materials to achieve lower environmental impacts. This research fills the gap and presents a comparison of the environmental profile of three SOFC structures: a commercially available structure, and two intermediate temperature structures, one using erbia-stabilised bismuth oxide electrolytes and a proposed structure using strontium-doped sodium bismuth titanate electrolytes. Using a functional unit of kg/100 kW of power output for each of the SOFC structures (excluding the interconnects), within a hybrid life cycle analysis framework, the environmental hotspots across the supply chains of each SOFC type are identified, quantified and ranked. The results show the use of these novel material combinations leads to a reduction in embodied materials and toxicological impact but higher electrical energy consumption during fabrication, in comparison to commercial SOFCs. The findings support the move to reduce the operating temperatures of SOFCs using these novel material architectures, which leads to an overall reduction in environmental impact due to the lower operational energy requirement of the chosen material constituents.
Lucy Smith; Taofeeq Ibn-Mohammed; Fan Yang; Ian M. Reaney; Derek C. Sinclair; S.C. Lenny Koh. Comparative environmental profile assessments of commercial and novel material structures for solid oxide fuel cells. Applied Energy 2018, 235, 1300 -1313.
AMA StyleLucy Smith, Taofeeq Ibn-Mohammed, Fan Yang, Ian M. Reaney, Derek C. Sinclair, S.C. Lenny Koh. Comparative environmental profile assessments of commercial and novel material structures for solid oxide fuel cells. Applied Energy. 2018; 235 ():1300-1313.
Chicago/Turabian StyleLucy Smith; Taofeeq Ibn-Mohammed; Fan Yang; Ian M. Reaney; Derek C. Sinclair; S.C. Lenny Koh. 2018. "Comparative environmental profile assessments of commercial and novel material structures for solid oxide fuel cells." Applied Energy 235, no. : 1300-1313.
Adolf Acquaye; Taofeeq Ibn-Mohammed; Andrea Genovese; Godfred Afrifa; Fred A Yamoah; Eunice Pokuaa Oppon. A quantitative model for environmentally sustainable supply chain performance measurement. European Journal of Operational Research 2018, 269, 188 -205.
AMA StyleAdolf Acquaye, Taofeeq Ibn-Mohammed, Andrea Genovese, Godfred Afrifa, Fred A Yamoah, Eunice Pokuaa Oppon. A quantitative model for environmentally sustainable supply chain performance measurement. European Journal of Operational Research. 2018; 269 (1):188-205.
Chicago/Turabian StyleAdolf Acquaye; Taofeeq Ibn-Mohammed; Andrea Genovese; Godfred Afrifa; Fred A Yamoah; Eunice Pokuaa Oppon. 2018. "A quantitative model for environmentally sustainable supply chain performance measurement." European Journal of Operational Research 269, no. 1: 188-205.
Lucy Smith; Taofeeq Ibn-Mohammed; S.C. Lenny Koh; Ian Reaney. Life cycle assessment and environmental profile evaluations of high volumetric efficiency capacitors. Applied Energy 2018, 220, 496 -513.
AMA StyleLucy Smith, Taofeeq Ibn-Mohammed, S.C. Lenny Koh, Ian Reaney. Life cycle assessment and environmental profile evaluations of high volumetric efficiency capacitors. Applied Energy. 2018; 220 ():496-513.
Chicago/Turabian StyleLucy Smith; Taofeeq Ibn-Mohammed; S.C. Lenny Koh; Ian Reaney. 2018. "Life cycle assessment and environmental profile evaluations of high volumetric efficiency capacitors." Applied Energy 220, no. : 496-513.
Considered as a less hazardous piezoelectric material, potassium sodium niobate (KNN) has been in the fore of the search for replacement of lead (Pb) zirconate titanate for piezoelectrics applications. Here, we challenge the environmental credentials of KNN due to the presence of ~60 wt% Nb2O5, a substance much less toxic to humans than Pb oxide, but whose mining and extraction cause significant environmental damage.
T. Ibn-Mohammed; S. C. L. Koh; I. M. Reaney; D. C. Sinclair; Khameel Mustapha; Adolf Acquaye; D. Wang. Are lead-free piezoelectrics more environmentally friendly? MRS Communications 2017, 7, 1 -7.
AMA StyleT. Ibn-Mohammed, S. C. L. Koh, I. M. Reaney, D. C. Sinclair, Khameel Mustapha, Adolf Acquaye, D. Wang. Are lead-free piezoelectrics more environmentally friendly? MRS Communications. 2017; 7 (1):1-7.
Chicago/Turabian StyleT. Ibn-Mohammed; S. C. L. Koh; I. M. Reaney; D. C. Sinclair; Khameel Mustapha; Adolf Acquaye; D. Wang. 2017. "Are lead-free piezoelectrics more environmentally friendly?" MRS Communications 7, no. 1: 1-7.
Life cycle assessment within a techno-economic framework is carried out for triboelectric nanogenerators in the context of other technologies.
Abdelsalam Ahmed; Islam Hassan; Taofeeq Ibn-Mohammed; Hassan Mostafa; Ian M. Reaney; Lenny S. C. Koh; Jean Zu; Zhong Lin Wang. Environmental life cycle assessment and techno-economic analysis of triboelectric nanogenerators. Energy & Environmental Science 2017, 10, 653 -671.
AMA StyleAbdelsalam Ahmed, Islam Hassan, Taofeeq Ibn-Mohammed, Hassan Mostafa, Ian M. Reaney, Lenny S. C. Koh, Jean Zu, Zhong Lin Wang. Environmental life cycle assessment and techno-economic analysis of triboelectric nanogenerators. Energy & Environmental Science. 2017; 10 (3):653-671.
Chicago/Turabian StyleAbdelsalam Ahmed; Islam Hassan; Taofeeq Ibn-Mohammed; Hassan Mostafa; Ian M. Reaney; Lenny S. C. Koh; Jean Zu; Zhong Lin Wang. 2017. "Environmental life cycle assessment and techno-economic analysis of triboelectric nanogenerators." Energy & Environmental Science 10, no. 3: 653-671.
By exploiting data from the Toxic Release Inventory of the United States, we have established that the toxicological footprint (TF) increased by 3.3% (88.4 Mt) between 1998 and 1999 and decreased by 39% (1088.5 Mt) between 1999 and 2013. From 1999 to 2006, the decreasing TF was driven by improvements in emissions intensity (i.e. gains in production efficiency) through toxic chemical management options: cleaner production; end of pipe treatment; transfer for further waste management; and production scale. In particular, the mining sector reduced its TF through outsourcing processes. Between 2006 and 2009, decreasing TF was due to decrease in consumption volume triggered by economic recession. Since 2009, the economic recovery increased TF, overwhelming the influence of improved emissions intensity through population growth, consumption and production structures. Accordingly, attaining a less-toxic economy and environment will be influenced by a combination of gains in production efficiency through improvement in emissions mitigation technologies and changes in consumption patterns. Overall, the current analysis highlights the structural dynamics of toxic chemical release and would inform future formulation of effective mitigation standards and management protocols towards the detoxification of the environment.
S. C. L. Koh; T. Ibn-Mohammed; Adolf Acquaye; K. Feng; I. M. Reaney; K. Hubacek; Hidemichi Fujii; K. Khatab. Drivers of U.S. toxicological footprints trajectory 1998–2013. Scientific Reports 2016, 6, 39514 .
AMA StyleS. C. L. Koh, T. Ibn-Mohammed, Adolf Acquaye, K. Feng, I. M. Reaney, K. Hubacek, Hidemichi Fujii, K. Khatab. Drivers of U.S. toxicological footprints trajectory 1998–2013. Scientific Reports. 2016; 6 (1):39514.
Chicago/Turabian StyleS. C. L. Koh; T. Ibn-Mohammed; Adolf Acquaye; K. Feng; I. M. Reaney; K. Hubacek; Hidemichi Fujii; K. Khatab. 2016. "Drivers of U.S. toxicological footprints trajectory 1998–2013." Scientific Reports 6, no. 1: 39514.
Contrary to conventional knowledge, LCA of PZT vs. KNN indicates the presence of niobium in KNN constitutes far greater impact across all the 16 categories considered in comparison with PZT. The increased environmental impact of KNN occurs in the early stages of the LCA due to raw material extraction and processing.
T. Ibn-Mohammed; S. C. L. Koh; Ian Reaney; Adolf Acquaye; D. Wang; S. Taylor; A. Genovese. Integrated hybrid life cycle assessment and supply chain environmental profile evaluations of lead-based (lead zirconate titanate) versus lead-free (potassium sodium niobate) piezoelectric ceramics. Energy & Environmental Science 2016, 9, 3495 -3520.
AMA StyleT. Ibn-Mohammed, S. C. L. Koh, Ian Reaney, Adolf Acquaye, D. Wang, S. Taylor, A. Genovese. Integrated hybrid life cycle assessment and supply chain environmental profile evaluations of lead-based (lead zirconate titanate) versus lead-free (potassium sodium niobate) piezoelectric ceramics. Energy & Environmental Science. 2016; 9 (11):3495-3520.
Chicago/Turabian StyleT. Ibn-Mohammed; S. C. L. Koh; Ian Reaney; Adolf Acquaye; D. Wang; S. Taylor; A. Genovese. 2016. "Integrated hybrid life cycle assessment and supply chain environmental profile evaluations of lead-based (lead zirconate titanate) versus lead-free (potassium sodium niobate) piezoelectric ceramics." Energy & Environmental Science 9, no. 11: 3495-3520.