Rodríguez - López Laboratory

Advanced Electroanalysis for Energy Materials

Research in the JRL Group

The selected publications can be found on our Publications page as well.

Colocalized Spectroelectrochemistry at Electrode Surfaces

Identifying structure-activity correlations at electrochemical interfaces greatly benefit from simultaneously identifying materials properties AND local reactivity. Our combinations of Raman (and other laser based-methods) and scanning electrochemical microscopy (SECM) create new opportunities for elucidating total reactivity at the micro- and nanoscale.

Key results and exciting directions in our laboratory include: Selected Publications: 102, 101, 84, 71, 60, 56, 54, 52, 45, 17

Automation and High-Throughput Electrochemistry

Electrochemical techniques generate information that is highly machine-friendly for artificial intelligence methods. Exploring new materials and new materials properties also greatly benefits from micro- and nano-scale characterization. Our group is pioneering approaches bolstered by small electrodes, integration with microfluidics, microfabrication, and integration with Python and robotics for addressing the materials challenges of the 21st century.

Key results and exciting directions in our laboratory include:
Selected Publications: 111, 103, 100, 97, 96, 79, 77, 48, 23

New Design Principles for 2D Electrochemical Interfaces

The atomic thickness of graphene makes it an intriguing material for electrode design. Our group has pioneered studies of outer-sphere electron transfer, electrocatalysis, and ion-insertion in ultrathin graphene electrodes by addressing a fundamental question: when do bulk and interface properties converge?
Key results and exciting directions in our laboratory include:

  • The first layer-by-layer study of Li+ intercalation kinetics on graphene
  • New strategies for ultra-fast intercalation of alkali ions for energy storage
  • Novel design concepts using electrochemically and spectroscopically transparent electrodes
  • Developing new spectroelectrochemical methods of analysis using graphene
  • Extension of our methods to exciting new 2D materials
Selected Publications:
105, 101, 95, 81, 73, 71, 59, 54, 51, 43, 35, 32, 23

Scanning Electrochemical Microscopy for Batteries

We create new quantitative imaging methods for energy storage and electrocatalysis using the scanning electrochemical microscope (SECM). The outstanding versatility of this instrument to capture the reactivity gives us a unique advantage to design advanced materials and interfaces and to explore creative solutions to unresolved questions in interfacial chemistry. In particular, the coupling of SECM with Raman spectroscopy has helped in the study of structure-reactivity relationship of various systems.
Key results and exciting directions in our laboratory include:

  • The first Li+ flux imaging technique for ion batteries
  • Multimodal SECM techniques, including SECM-Raman and SECM-X-ray.
  • The in-depth exploration of solid-electrolyte interphase (SEI) properties
  • Single-site, single-particle, and combinatorial imaging methods
  • An SECM method to detect oxygen evolution from decomposing Li-ion battery cathodes
  • New mechanistic exploration of methods to refurbish batteries
Selected Publications:
113, 112, 95, 93, 90, 78, 74, 72, 66, 58, 56 54, 45, 42, 41, 36, 34, 30, 21,

New Concepts in Photo- and Electro-Catalysis

We take a deep-dive into the relationships between electrode structure and reactivity. By introducing groundbreaking analytical platforms, advanced single-site and surface-sensitive imaging methods, and time-resolved, in-situ, and chemically-resolved measurements create new and unique knowledge that informs new strategies for superior catalysts.
Key results and exciting directions in our laboratory include:

Selected Publications: 97, 94, 83, 71, 65, 64, 59, 54, 51, 50, 48, 36, 34, 30, 26, 23,

New Frontiers in Redox-Active Polymers and Redox-Flow Batteries

We created a new type of redox-flow battery that is based on size-exclusion: energy-storing redox polymers act as energy carriers, enabling the use of highly efficient and inexpensive nanoporous membranes that have dramatically improved the performance of non-aqueous flow technologies.
Key results and exciting directions in our laboratory include:

Selected Publications: 110, 91, 77, 68, 56, 55, 44, 40, 39, 37, 29, 22,

Opinions and Perspectives

We have highlighted our cutting-edge electrochemistry in several invited documents, opinion pieces, perspectives, and book chapters. We take pride in advancing, modernizing, and disseminating electroanalysis to ensure that the role of analytical chemistry remains strong in understanding the chemistry behind important developments in energy science.

Book Chapter

Scanning Electrochemical Microscopy. Chapter 16: Application to Batteries and Fuel Cells

Book Chapter

Encyclopedia of Electrochemistry. Chapter: Methods and Instrumentation in Energy Storage

Book Chapter

Batteries: Materials Principles and Characterization Methods. Chapter 9: SECM: A Versatile Tool for Inspecting the Reactivity of Battery Electrodes

Publication #60

Advanced Electrochemical Analysis for Energy Storage Interfaces

Publication #59

Electrocatalysis on Ultra-Thin 2D Electrodes: New Concepts and Prospects for Tailoring Reactivity

Publication #52
p>Prospects for Single-Site Interrogation Using In Situ Multimodal Electrochemical Scanning Probe Techniques

Publication #47

Finding Harmony Between Ions and Electrons: New Tools and Concepts for Emerging Energy Storage Materials

Publication #39

Redox-Active Polymers as Soluble Nanomaterials for Energy Storage

Publication #31

Emerging Scanning Probe Approaches to the Measurement of Ionic Reactivity at Energy Storage Materials


Publication #27

Emerging Techniques for the In Situ Analysis of Reaction Intermediates on Photo-Electrochemical Interfaces

For a comprehensive list of publications, see our publications page and our Book Chapters section.

Interested in our laboratory?

We are always interested in graduate students that are enthusiastic about electrochemistry, analysis, and energy materials. Please contact us regarding new postdoctoral opportunities as well!
Our group provides an exciting and motivating environment for scientific discovery and collaboration, both within researchers in the group and beyond. A strong emphasis will be placed in advising graduate students to think creatively, implement their ideas experimentally, and make use of computational modeling to test such ideas and independently generate more advanced ones. See our group highlight in "Words of Wisdom", published in Chemical and Engineering News: