Chemical Engineering Journal Advances最新文献

{"title":"Lumped and distributed activation energy modelling of biomass pyrolysis","authors":"Zoé Mercier ,&nbsp;Marion Carrier ,&nbsp;Frédéric Marias","doi":"10.1016/j.ceja.2025.100998","DOIUrl":"10.1016/j.ceja.2025.100998","url":null,"abstract":"<div><div>The Distributed Activation Energy Model (DAEM) is applied to a semi-detailed degradation scheme, demonstrating its effectiveness in describing the complex kinetics of biomass pyrolysis. DAEM is a widely used tool for modeling the complex reaction rates and capturing the heterogeneous nature of lignocellulosic decomposition. First, the review provides the theoretical background to DAEM, highlighting its statistical basis and the assumptions underlying the distribution of activation energies. It then analyzes advances in parameter estimation, numerical methods, and optimization techniques that improve the reliability of DAEM fitting. Comparative studies with the constant activation energy model were considered to clarify the strengths and limitations of DAEM. A significant part of the research paper summarizes how DAEM has been applied to the main constituents of biomass: cellulose, hemicelluloses, and lignins. The model has also been validated using external data that was not used in the fitting procedure. Applications to real biomass have been discussed alongside recent efforts to extend the model to secondary reactions and gas formation. Finally, the study considers ways to extend DAEM towards more mechanistic degradation schemes by incorporating secondary reactions and pathways leading to gas formation and levoglucosan degradation.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 100998"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145938994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Battery waste management: Tackling environmental, health, and resource challenges from growing waste","authors":"Chaitanya Roy Chowdhury ,&nbsp;Ani Biswas ,&nbsp;Md. Golam Kibria ,&nbsp;Monjur Mourshed","doi":"10.1016/j.ceja.2026.101033","DOIUrl":"10.1016/j.ceja.2026.101033","url":null,"abstract":"<div><div>Improper disposal of rechargeable batteries, particularly lithium-ion, lead-acid, and nickel-cadmium types, poses serious risks to ecosystems anuman health due to the release of toxic metals. The global battery market is projected to grow from USD 139.9 billion in 2024 to USD 672.5 billion by 2034 at a CAGR of 17.0%, with lithium-ion batteries dominating due to their high energy density, while lead-acid and nickel-cadmium batteries pose unique recycling challenges related to heavy metal toxicity. This research work summarises state-of-the-art practices, challenges, and opportunities in battery waste management, focusing on degradation mechanisms and variables such as temperature, state of charge, and operating conditions. Battery degradation, influenced by calendar and cycle aging, operational factors like temperature and SOC, and maintenance practices, exacerbates waste generation and complicates recycling economics. Life cycle assessment reveals that lithium-ion batteries have a global warming potential of 50-313 kg CO₂-eq/kWh, primarily from cathode production, with recycling offering significant credits through avoided burdens. A Monte Carlo simulation of lithium-ion battery recycling shows profitability in 65.2% of cases, with an average annual profit of USD 0.91 million and breakeven at 9.59 million kg of processed mass. Recycling also cuts CO₂ emissions by up to 70.0 kg/kWh compared with virgin production, highlighting major environmental benefits. Profitability is driven by waste supply, active battery mass, and material revenue. The study emphasises the importance of circular economy strategies, battery degradation management, and second-life applications in achieving long-term environmental and economic sustainability in waste battery management.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 101033"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145972716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analytical assurance of hydrogen purity: A comprehensive framework for trace contaminant verification and conformity assessment","authors":"Yuvarajan Devarajan ,&nbsp;Christopher Selvam D ,&nbsp;Dimple Bahri ,&nbsp;Divyesh Rameshbhai Vaghela ,&nbsp;Pradeep Kumar Jangid ,&nbsp;Sikata Samantaray ,&nbsp;Nakul Ramanna ,&nbsp;Kulmani Mehar","doi":"10.1016/j.ceja.2025.101015","DOIUrl":"10.1016/j.ceja.2025.101015","url":null,"abstract":"<div><div>The precise identification of trace contaminants in hydrogen is essential for safeguarding proton-exchange membrane fuel cells (PEMFCs), facilitating reliable fuel cell implementation, and advancing global energy transition objectives outlined in Sustainable Development Goal (SDG)-7, which pertains to affordable and clean energy. This review synthesizes the analytical, metrological, and operational specifications necessary for the quantification of impurities at parts-per-million (ppm) to parts-per-billion (ppb) concentrations throughout the hydrogen production, storage, transportation, and dispensing processes that are vital for achieving SDG-9 (industry, innovation, and infrastructure) and SDG-13 (climate action). Comparative evaluations of the performance of multi-detector gas chromatography (GC), laser-based spectroscopy (CRDS/FTIR), and mass-spectrometric techniques are provided, with a focus on matrix-matched calibration, interference suppression, recovery verification, and the stability of reactive species such as sulfur compounds, carbonyls, and ammonia. The review further delineates a metrologically rigorous conformity-assessment framework that incorporates integrity of sampling systems, memory mitigation strategies, preconcentration methodologies, SI-traceable calibration, uncertainty quantification, and guard-banded decision protocols to ensure robust compliance with ISO 14,687 and SAE J2719. Instead of merely reiterating numerical thresholds, the framework associates instrument capability with distinct uncertainty-aware decision protocols, thereby facilitating trustworthy quality assurance at the boundaries of specifications. Practical recommendations are offered for online and near-line monitoring systems, verification intervals, and standardized operating procedures (SOPs) to promote reproducible, auditable hydrogen quality assurance within the context of emerging clean energy infrastructures aligned with SDG objectives.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 101015"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adsorption of Mn2+, Co2+, and Ni2+ in MOF-808 and pyrazole-modified MOF-808: Selectivity trends assessed with microcalorimetry and spectroscopic analysis","authors":"Boyoung Song ,&nbsp;Nadine Kabengi ,&nbsp;Jackson Geary ,&nbsp;Dorina F. Sava Gallis ,&nbsp;Kevin Leung ,&nbsp;Anastasia G. Ilgen","doi":"10.1016/j.ceja.2025.101003","DOIUrl":"10.1016/j.ceja.2025.101003","url":null,"abstract":"<div><div>Zirconium(IV)-based metal-organic framework (MOF) MOF-808 and pyrazole-functionalized MOF-808 were investigated for the selective adsorption of Mn²⁺, Co²⁺, and Ni²⁺, the key components of lithium-ion battery cathodes. Batch adsorption experiments were conducted to assess selectivity for each metal, while flow microcalorimetry was employed to assess thermodynamic signatures of adsorption. To understand molecular interactions between the MOFs and adsorbing metal ions we utilized attenuated total reflectance Fourier transform infrared (ATR-FTIR) and Ni K-edge extended X-ray absorption fine structure (EXAFS) spectroscopic analyses. For MOF-808, the adsorption followed Mn²⁺ &gt; Co²⁺ ≈ Ni²⁺trend, following the changes in hydration energy of the examined ions. Pyrazole functionalization altered this trend by increasing the affinity of MOF-808-pyrazole for Ni only, while resulting in similar affinity for the other two ions (Ni²⁺ &gt; Mn²⁺ &gt; Co²⁺). Microcalorimetry revealed that Mn²⁺ adsorption on both MOFs was exothermic, whereas Co²⁺ and Ni²⁺ adsorption was endothermic. Importantly, ATR-FTIR spectra showed peak growth and vibrational band shifts assigned to direct interactions of Co²⁺ and Ni²⁺ with pyrazole groups, indicating that Ni²⁺ coordinates to N in pyrazole. Additionally, the shell-by-shell fitting of EXAFS data also indicated that some Ni²⁺ adsorption took place at the Zr oxo-cluster sites. These results demonstrate that metal adsorption by MOF-808 and MOF-808-pyrazole is metal-specific, governed by both hydration energy and the electrostatic interactions described by the Irving-Williams series. Importantly, pyrazole functionalization enables selective Ni²⁺ capture, offering new insights into ligand design within MOFs for target element separation from mixed aqueous systems.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 101003"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dual-functional electron transport layer design: built-in electric field and defect passivation for efficient perovskite solar cells","authors":"Aseel j. Mohammed ,&nbsp;Wala Dizayee ,&nbsp;Ali yousuf khenyab ,&nbsp;Mohammed Ahmed Mohammed ,&nbsp;Mohammed Zorah ,&nbsp;Zainab Shaker Matar Al-Husseini ,&nbsp;Mohamed Shabbir Abdulnabi ,&nbsp;G. Abdulkareem-Alsultan ,&nbsp;Maadh Fawzi Nassar","doi":"10.1016/j.ceja.2025.101012","DOIUrl":"10.1016/j.ceja.2025.101012","url":null,"abstract":"<div><div>The electron transport layer (ETL) is a significant aspect of perovskite solar cells (PSCs) that affect their performance in terms of efficiency and lifetime. Our work proposes a new ETL design that integrates three components: a Zn₂SnO₄–ZnO (ZSO-ZO) heterojunction and the graphitic carbon nitride (g-C₃N₄) to create GCN/ZSO-ZO composite ETLs (or GCN/ZSO-ZO composite ETLs). The internal built-in electric field (BIEF) formed at the interface of ZSO-ZO plays an important role in charge separation and the movement of electrons towards their respective electrodes, while g-C₃N₄ accomplishes the task of surface defect passivation at the interface of perovskite and ETL. The result is that perovskite films on GCN/ZSO-ZO substrates have better crystallinity, larger grain sizes, lower trap densities, and less non-radiative recombination. GCN/ZSO-ZO solar cells achieved an outstanding power conversion efficiency (PCE) of 23.5%, which is higher than that of reference cells with ZSO or ZSO-ZO electron transport layers (ETLs) only. Furthermore, the cells demonstrated an excellent long-term thermal and environmental stability with more than 90% of their initial power conversion efficiency retained after testing over 1200 h. The work in the present study demonstrates a facile and scalable approach to co-optimize IDF and PPF effects, which also tunes passivation for enhanced efficiency and stability in the next-generation PSCs.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 101012"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Morphological and electronic engineering of Co(OH)2/Ce(OH)3 electrocatalyst on ALD-enabled MgO modified carbon cloth electrode for glucose oxidation-coupled water splitting","authors":"Ameer Farithkhan ,&nbsp;Jae-Hyun Kim ,&nbsp;Mehdi Shamekhi ,&nbsp;Alireza Razazzadeh ,&nbsp;Myung-Jin Jung ,&nbsp;Hao Van Bui ,&nbsp;Gilles H. Peslherbe ,&nbsp;Jong-Seong Bae ,&nbsp;Se-Hun Kwon","doi":"10.1016/j.ceja.2025.100968","DOIUrl":"10.1016/j.ceja.2025.100968","url":null,"abstract":"<div><div>Exploration of advanced electrocatalyst design strategies and their development to propel the efficient glucose oxidation reaction (GOR) offers a feasible replacement for the stereotypical oxygen evolution reaction, unlocking a dual-benefit platform for sustainable hydrogen production and value-added biomass conversion. For the first time, this study presents the novel functionalization of carbon cloth (CC) fibers with a MgO interlayer to strategically direct the nucleation and growth of a catalytically dynamic Co(OH)₂/Ce(OH)₃ system, while systematically exploring the influence of microstructural modulation and electron engineering towards enhancing bifunctional GOR-assisted water splitting activity. Among all the fabricated electrodes, the Co(OH)₂/Ce(OH)₃−MgO@CC delivers brilliant performance toward glucose electrolysis, driven by the synergistic interplay of densely packed, well-connected, and uniformly distributed three-dimensional Co(OH)₂/Ce(OH)₃ microstructures, coupled with an optimized electron architecture established by bimetallic engineering tailored for proficient GOR. Impressively, the self-supporting Co(OH)₂/Ce(OH)₃−MgO@CC, when configured as a glucose electrolyzer, only demands a low operating potential of 1.65 V to achieve the high current density of 100 mA cm^-2, representing a 210 mV reduction compared to typical alkaline water electrolysis. Overall, this research establishes a new paradigm for innovative electrocatalyst design and paves the way for advancing next-generation materials tailored for efficient glucose oxidation electrocatalysis.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 100968"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145623443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Machine learning-assisted ultrafiltration for sustainable sub-20 nm nanoparticle removal in chip production","authors":"Jie McAtee ,&nbsp;Genhui Jing ,&nbsp;Tianwei Liu ,&nbsp;Wilson Poon ,&nbsp;Da-Ren Chen ,&nbsp;Chuen-Jinn Tsai ,&nbsp;Sheng-Chieh Chen","doi":"10.1016/j.ceja.2025.100988","DOIUrl":"10.1016/j.ceja.2025.100988","url":null,"abstract":"<div><div>The presence of particles in processing liquids, such as ultrapure water (UPW), isopropyl alcohol (IPA), and sulfuric acid (H₂SO₄) for wafer cleaning, up to 800 times in advanced semiconductor chip production, can cause defects and yield loss. Size-exclusion nanofiltration (NF) membranes with extremely small pores of 1–10 nm are widely used to remove sub-20 nm NPs during chip production, ensuring the cleanliness of these liquids, as commercial liquid particle detectors cannot quantitatively measure these tiny NPs. However, NF membrane’s small pores lead to high energy consumption. To achieve more sustainable chip production, the research team reported that ultrafiltration (UF) membranes with 20–100 nm pores can effectively capture sub-20 nm nanoparticles (NPs) by adsorption when favorable filtration conditions are met. However, due to the complex mechanisms underlying UF against sub-20 nm NPs, sustainable UF systems can be identified only with the aid of machine learning (ML). Therefore, a homemade electrospray aerosolization and particle classification system was developed to generate additional retention data for UF against 3–20 nm NPs in water and in &gt;96 % concentrated H₂SO₄. A ML model was developed using high-quality data and theoretical retentions derived from the xDLVO theory to identify optimal filtration conditions for achieving sustainable UF. Results showed that 3 and 5 nm NPs could be retained at 99.9 % efficiency by a ∼50 nm-rated UF membrane in UPW, proving energy-efficient, high-NP retention by UF is feasible. In 96 % H₂SO_4, however, low experimental retention of ∼5 % for 20 nm SiO₂ NPs by both 70 nm and 100 nm rated PTFE membranes was observed. The current successful ML model for UPW will be extended to H₂SO₄ when more retention data is available for smaller NPs (e.g., 5 and 10 nm) in H₂SO₄.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 100988"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145747816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A new L-PLA@Croconaine-based all organic composite: selective management of thermophysical properties of L-PLA by a photothermal croconaine-based molecular additive","authors":"Maria Montrone ,&nbsp;Umberto Berardi ,&nbsp;Paola Fini ,&nbsp;Paolo Bison ,&nbsp;Stefano Rossi ,&nbsp;Salvatore Gambino ,&nbsp;Marco Pugliese ,&nbsp;Jennifer Gubitosa ,&nbsp;Pinalysa Cosma ,&nbsp;Vito Rizzi ,&nbsp;Antonio Cardone ,&nbsp;Maria Annunziata M. Capozzi","doi":"10.1016/j.ceja.2025.100979","DOIUrl":"10.1016/j.ceja.2025.100979","url":null,"abstract":"<div><div>Selective management of chemico-physical properties of <span>l</span>-polylactic acid (L-PLA) is pivotal to broaden the application range of this polymer. As a thermally and electrically insulating polymer, its application in energy field and electronic instruments requires innovative strategies capable of selectively tune thermal and electrical properties, safeguarding mechanical properties and thermal stability. Here, we propose a molecular approach to selectively enhance thermal conductivity of <span>l</span>-PLA, preserving electrical insulating capacity, by incorporating a benzoindolenine-based croconaine (CR-BI) as functional photothermal additive. <span>l</span>-PLA@CR-BI composite solid layers were prepared via solution casting, by combining different amounts of CR-BI and comprehensively characterized by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC), UV–vis and FTIR spectroscopy, electrical, photothermal and thermophysical measurements. <span>l</span>-PLA@CR-BI composites displayed homogeneous coloration and a uniform CR-BI molecular dispersion inner <span>l</span>-PLA, with a molecular-level thermal network resulting in a strong impact on its thermal properties. Remarkably, the inclusion of only 1wt% CR-BI led to an over threefold increase in thermal diffusivity and conductivity compared to neat <span>l</span>-PLA. TGA evidenced a CR-BI-induced enhancement of polymer chain mobility and the formation of new crystalline domains, improving heat transfer and suggesting thermal energy storage applications. Importantly, the electrical insulating nature of <span>l</span>-PLA remained unchanged across all compositions. To the best of our knowledge, this work provides the first demonstration of croconaines as molecular modulators of <span>l</span>-PLA’s chemico-physical properties, enabling selective and efficient enhancement of thermal transport while maintaining electrical insulation- an advance with significant implications for sustainable polymer-based electronic and energy materials.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 100979"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145747817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-purity and high-recovery lithium extraction via dual selectivity optimization of ion and water in a batch nanofiltration–RO process for spent LiB leachates","authors":"Ryoma Miyamoto ,&nbsp;Shinichi Minegishi ,&nbsp;Yutaro Takaya ,&nbsp;Chiharu Tokoro","doi":"10.1016/j.ceja.2026.101061","DOIUrl":"10.1016/j.ceja.2026.101061","url":null,"abstract":"<div><div>To recover Li⁺ from sulfuric‑acid leachates of spent lithium‑ion batteries, we developed a batch‑type nanofiltration (NF)–reverse osmosis (RO) process with NF retentate recirculation and pH control. The batch configuration enables time‑based tuning of recovery under high overall recovery constraints. A two‑stage NF followed by RO was analyzed experimentally and through process simulation to separate Li⁺, sulfuric acid, and water. Experiments using a Mg²⁺/Li⁺ sulfate model system achieved high Li⁺ purity (&gt; 99.8 wt%) and overall recovery (&gt; 99 %), although with higher acid consumption than the optimized simulation. Under aligned ≥ 99 % recovery and product concentration targets, simulations show that the batch process and an aligned continuous NF–RO process require comparable external water make‑up owing to RO permeate reuse, whereas the continuous process involves approximately tenfold larger internal RO permeate circulation and sulfuric acid addition. Using Mg²⁺ as a surrogate multivalent cation, further validation with real leachates is required to confirm robustness under complex compositions.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 101061"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146073684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistically engineered Pt-decorated NiCo phosphide anchored on a Fe-MIL-88-derived MOF support for enhanced hydrogen evolution","authors":"Mohd Zahid Ansari ,&nbsp;Ebtihal Youssef ,&nbsp;Ahmed Abdala ,&nbsp;Samer Adham ,&nbsp;Ahmed Abdel-Wahab","doi":"10.1016/j.ceja.2025.101021","DOIUrl":"10.1016/j.ceja.2025.101021","url":null,"abstract":"<div><div>A Pt-decorated bimetallic nickel-cobalt phosphide (NiCoP_z) catalyst was prepared on an optimized Fe-MIL-88 framework supported on nickel foam (NF). Fe-MIL-88 was synthesized via a solvothermal method using polyvinylpyrrolidone (PVP) and subsequently annealed at 250–400 °C. A bimetallic NiCo structure was hydrothermally grown on this framework, followed by Pt deposition using table-top magnetron sputtering (TMS) and a final phosphorization to prepare Pt@NiCoP_z/MIL-400. Scanning Electron Microscopy (SEM) revealed interconnected nanosheets anchored to the MIL-derived framework. X-ray Diffraction (XRD) confirmed retention of the MIL-derived structure with NiCoP phases. Transmission Electron Microscopy (TEM) and Scanning (STEM) coupled with Energy-Dispersive X-ray Spectroscopy (EDS) mapping revealed distinct lattice fringes and a homogeneous distribution of Ni, Co, P, and Pt. X-ray Photoelectron Spectroscopy (XPS) confirmed metal-phosphorus bonding, retained Fe-centers, and the persence of Pt, while Brunauer-Emmett-Teller (BET) showed a hierarchical mesoporous structure with an increased surface area. The Pt@NiCoP_z/MIL-400 catalyst required an overpotential of ∼111 mV at 10 mA cm^-2 and ∼181 mV at 100 mA cm^-2 in 0.5 M H₂SO₄ with a Tafel slope of ∼56 mVdec^-1. A 48-h chronoamperometric test showed reasonable stability, although partial detachment of the surface from the substrate was observed. This approach offers a promising route to efficient HER electrocatalysts, where improved interfacial adhesion could further enhance stability.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 101021"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145938848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}