Zirconium-loaded mesostructured silica nanoparticles adsorbent for removal of hexavalent chromium from aqueous solution by Triwahyono, S., Salamun, N., A. Jalil, A., Izan, S. M., Setiabudi, H. D., Prasetyoko, D.

“…The thermodynamic properties confirmed that the adsorption of Cr(VI) onto Zr/MSN was spontaneous and endothermic in nature, with an activation energy of 24 kJ mol-1 showing that the adsorption was a chemisorption process.…”

Process optimization of methylene blue adsorption onto eggshell-treated palm oil fuel ash by Hasan, R., Chong, C. C., Setiabudi, H. D., Jusoh, R., A.Jalil, A.

“…The thermodynamic study discovered the endothermic and spontaneous natures of MB adsorption onto EG–POFA. …”

Process optimization of methylene blue adsorption onto eggshell-treated palm oil fuel ash by Rosalyza, Hasan, C. C., Chong, Setiabudi, H. D., Rohayu, Jusoh, A. A., Jalil

“…The thermodynamic study discovered the endothermic and spontaneous natures of MB adsorption onto EG–POFA. …”
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Kinetics, isotherms, and thermodynamic studies on the adsorption of mercury (ii) ion from aqueous solution using modified palm oil fuel ash by Imla Syafiqah, Mohd Salleh, Wan Mohd Hafizuddin, Wan Yussof

“…The negative Gibbs free energy change (-788.90 kJ/mol) and the positive enthalpy change (73,680.33 kJ/mol) indicated that adsorption was spontaneous process and endothermic nature. Overall, POFA looks to be a promising adsorbent for removal of mercury (II) ion from aqueous solutions due to its high performance and availability at low cost.…”
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A review on catalyst formulation, reaction condition and reaction mechanism for dry reforming of methane/biogas to syngas by Abdul Hadi, Abdullah, Ahmad Zamani, Ab Halim, Amri, Mohamed

“…However, due to the highly endothermic nature of the dry reforming reaction, a large quantity of energy is required. …”
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Development of artificial shape-setting energy storage phosphorous building gypsum aggregate by Shixiong Liao, Kun Ma, Lei Wu, Zhiman Zhao, Sicheng Quan

“…The phase transition temperature and enthalpy of the endothermic and exothermic stages were 17.6 and 27.14 ℃, and 33.02 and 31.62 J/g, respectively. …”
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1,5-Dimethyltetrazole as a ligand in energetic 3d5 to 3d10-metal coordination compounds by Moritz Kofen, Alexander G. Harter, Thomas M. Klapötke, Jörg Stierstorfer

“…This study used 1,5-dimethyltetrazole (3) as a highly endothermic, easily accessible, and insensitive ligand. …”
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Removal of Fluoride from Aqueous Solution Using Shrimp Shell Residue as a Biosorbent after Astaxanthin Recovery by Yan Li, Lili Zhang, Minru Liao, Chao Huang, Jing Gao

“…Moreover, the adsorption process of fluoride was nonspontaneous and endothermic, which fits well with both the pseudo-second-order and Langmuir models. …”
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Mechanical Performance and Microstructural Evolution of Rotary Friction Welding of Acrylonitrile Butadiene Styrene and Polycarbonate Rods by Chil-Chyuan Kuo, Naruboyana Gurumurthy, Hong-Wei Chen, Song-Hua Hunag

“…The differential scanning calorimetry curve for the friction-welded parts welded at a rotation speed of 1350 rpm shows an endothermic peak between 400 to 440 °C and an exothermic peak between 600 to 700 °C, showing that the friction-welded parts have better mechanical properties.…”
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Highly effective sequestration of Cd(Ⅱ) from aqueous solution using marine diatom biomass: Adsorption performances and mechanism by Xin Wang, Jingfeng Wang, Shanfa Zhang, Junguo Li

“…The kinetic, isotherm and thermodynamic analysis suggested the adsorption of Cd(Ⅱ) was a spontaneous, endothermic and chemisorption involved process. Moreover, inorganic salts and turbidity showed negative effects on Cd(Ⅱ) adsorption, whereas humic acid showed a positive effect. …”
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Facile preparation of porous activated carbon under ultrasonic assistance for the Methylene blue removal from aqueous environment: characterization, isothermal, kinetic and thermod... by Hadi Eslami, Rasoul Khosravi, Mohammad Reza Miri, Abdollah Gholami, Esmail Ghahramani, Afshin Khosravi

“…Investigation of thermodynamic parameters indicated that adsorption process of MB by PPAC is spontaneous, endothermic, and physical.…”
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Synthesis, characterization, and BSA binding studies of newfangled 2-phenylacetohydrazide derivatives by Muhammad Nawaz Shah, Hira Khalid, Sabina Jhaumeer Laulloo, Nausheen Joondan, Muhammad Nadeem Arshad, Abdullah M. Asiri, Hassan Butt

“…Thermodynamic parameters ΔG, ΔH°, and ΔS° demonstrated that interactions of BSA with compounds BPAH, EPAH, FMAH, and HBPAH were exothermic while for PPAH it was endothermic. The negative enthalpy and entropy of the compounds BPAH, EPAH, FMAH, and HBPAH indicated that van der Waals' forces and hydrogen bonding played a major role in stabilizing the BSA binding with the molecules. …”
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Efficient Removal of Bisphenol A Using Nitrogen-Doped Graphene-Like Plates from Green Petroleum Coke by Zhipeng Liu, Quanyong Wang, Bei Zhang, Tao Wu, Yujiang Li

“…According to the thermodynamic data, the adsorption process was spontaneous, physical, and endothermic in nature. Therefore, N-GLPs are efficient adsorbent material to remove BPA from wastewater.…”
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Study on the mechanism of removing fluoride from wastewater by oxalic acid modified aluminum ash-carbon slag-carbon black doped composite by Yuanchuan Ren, Minjie He, Guangfei Qu, Nanqi Ren, Ping Ning, Yuyi Yang, Xiuping Chen, Zuoliang Wang, Yan Hu

“…The pseudo second order equation and Langmuir model were fit to the experimental data, and the adsorption of fluoride by SAA@CS-CBoa exhibited spontaneous and endothermic characteristics. When PO43-, CO32–, SO42-, Cl-, NO3–, Br- and HCO3– anions were individually or combined in solution, the adsorbents exhibited higher fluoride selectivity and sensitivity, while PO43-and CO32– weakened the adsorption of fluoride in solution in the same way regardless of the presence of the other 5 anions. …”
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Feasibility and Performance Analysis of High-Energy-Density Hydrocarbon-Fueled Turboexpander Engine by Jin Gao, Ziyi Kang, Weiheng Sun, Youyin Wang, Junlong Zhang, Wen Bao

“…The results show that the endothermic hydrocarbon-fueled turboexpander engine has good specific impulse in Mach 0∼4 at an equivalence ratio of 0.7∼1.3, and the turboexpander engine can be combined with the dual-mode scramjet and become an efficient acceleration method for SSTO missions and the reusable spacecraft.…”
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Preparation and Characterization of an Electrospun Whey Protein/Polycaprolactone Nanofiber Membrane for Chromium Removal from Water by Laura Cristina Ramírez-Rodríguez, María Ximena Quintanilla-Carvajal, Didilia Ileana Mendoza-Castillo, Adrián Bonilla-Petriciolet, Carlos Jiménez-Junca

“…The removal performance of the membrane was enhanced by an increase in temperature showing an endothermic adsorption process. The adsorption process of chromium ions onto the nanofiber membrane followed the Sips adsorption isotherm, while the adsorption kinetics followed a pseudo-second kinetics where the maximum adsorption capacity was 31.0 mg/g at 30 °C and pH 2. …”
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Liquid Organic Hydrogen Carriers Applied on Methane–Hydrogen-Fueled Internal Combustion Engines: A Preliminary Analysis of Process Heat Balance by Simone Pedrazzi, Manuel Zucchi, Alberto Muscio, Ahmet Fatih Kaya

“…One of these is the Liquid Organic Hydrogen Carrier (LOHC), which utilizes organic hydrocarbons that can capture hydrogen (through an exothermic hydrogenation reaction) and release hydrogen (through an endothermic dehydrogenation reaction). In this paper, a 0D model of an internal combustion engine fueled with a mixture of hydrogen and methane was used to investigate whether the enthalpy of the exhaust gases can balance the heat rate required to self-sustain the dehydrogenation stage. …”
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Iron-Loaded Pomegranate Peel as a Bio-Adsorbent for Phosphate Removal by Naoufal Bellahsen, Balázs Kakuk, Sándor Beszédes, Zoltán Bagi, Nóra Halyag, Tamás Gyulavári, Szabolcs Kertész, Ahmed El Amarti, Etelka Tombácz, Cecilia Hodúr

“…Investigation of thermodynamic parameters indicated the spontaneity and endothermic nature of the process. These results introduce IL-PP as an efficient bio-adsorbent of phosphate.…”
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A State-of-the-Art Review on Biowaste Derived Chitosan Biomaterials for Biosorption of Organic Dyes: Parameter Studies, Kinetics, Isotherms and Thermodynamics by Yean Ling Pang, Jia Hui Tan, Steven Lim, Woon Chan Chong

“…Most of the biosorption processes were endothermic, feasible and spontaneous at the low temperature range between 288 K and 320 K. …”
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Changes of Structure and in Vitro Digestion Properties of Starches in Desi Chickpea Cells Induced by Thermal Treatment by Yueyue YAO, Yuanyuan DENG, Zhencheng WEI, Yan ZHANG, Xiaojun TANG, Guang LIU, Pengfei ZHOU, Zhihao ZHAO, Ying LIU, Ping LI

“…And no significant changes was observed for the enthalpy value of cell samples treated with 100 ℃ including 100D and 70D-100 (ΔH<1.0 J/g), whereas two endothermic peaks were observed for the pressure-heated cell samples (Pre-D). …”
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